manual rockford fosgate 23 26x and 46x amplifiers

.6

I n s t a l l a t i o n I n s t a l l a t i o n I n s t a l l a t i o n I n s t a l l a t i o n I n s t a l l a t i o n a n d a n d a n d a n d a n d O p e r a t i o nO p e r a t i o nO p e r a t i o nO p e r a t i o nO p e r a t i o n

.3

.6

c a r a u d i o f a n a t i c sfor

100 Watt Amplifier2 - c h a n n e l

150 Watt Amplifier2-channel w/crossover

300 Watt Amplifier4-channel w/crossover

Dear Customer,

Congratulations on your purchase of the world's finest brand of car audio amplifiers.At Rockford Fosgate we are fanatics about musical reproduction at its best, and we arepleased you chose our product. Through years of engineering expertise, hand craftsman-ship and critical testing procedures, we have created a wide range of products thatreproduce music with all the clarity and richness you deserve.

For maximum performance we recommend you have your new Rockford Fosgateproduct installed by an Authorized Rockford Fosgate Dealer, as we provide specializedtraining through Rockford Technical Training Institute (RTTI). Please read yourwarranty and retain your receipt and original carton for possible future use.

Great product and competent installations are only a piece of the puzzle when it comesto your system. Make sure that your installer is using 100% authentic installationaccessories from Connecting Punch in your installation. Connecting Punch haseverything from RCA cables and speaker wire to Power line and battery connectors.Insist on it! After all, your new system deserves nothing but the best.

To add the finishing touch to your new Rockford Fosgate image order your Rockfordwearables, which include everything from T-shirts and jackets to hats and sunglasses.

To get a free brochure on Rockford Fosgate products and Rockford accessories, in theU.S. call 602-967-3565 or FAX 602-967-8132. For all other countries, call +001-602-967-3565 or FAX +001-602-967-8132.

If, after reading your manual, you still have questions regarding this product,we recommend that you see your Rockford Fosgate dealer. If you need furtherassistance, you can call us direct at 1-800-795-2385. Be sure to have your serialnumber, model number and date of purchase available when you call.

The serial number can be found on the outside of the box. Please record it inthe space provided below as your permanent record. This will serve asverification of your factory warranty and may become useful in recovering youramplifier if it is ever stolen.

Serial Number: ________________________________

Model Number: ________________________________

PRACTICE SAFE SOUNDCONTINUOUS EXPOSURE TO SOUND PRESSURE LEVELS OVER100dB MAY CAUSE PERMANENT HEARING LOSS. HIGHPOWERED AUTOSOUND SYSTEMS MAY PRODUCE SOUNDPRESSURE LEVELS WELL OVER 130dB. USE COMMON SENSEAND PRACTICE SAFE SOUND.

advanced

Operation

TA B L E O F CO N T E N T SIntroduction ............................................................................................. 1Accessory Pack ........................................................................................ 1Technical Design Features ....................................................................... 12.3, 2.6x, 4.6x Design Features ................................................................ 5Installation Considerations ....................................................................... 7Mounting Location ................................................................................... 8Battery and Charging................................................................................ 9Wiring the System .................................................................................... 9Using Passive Crossovers ....................................................................... 11Table of Crossover Component Values ................................................... 12Using the XCard ..................................................................................... 13Customizing the XCard .......................................................................... 13Resistor Chart ......................................................................................... 14XCard Access ......................................................................................... 152.3 & 2.6x Installation ............................................................................ 164.6x Installation ..................................................................................... 19System Diagrams.................................................................................... 24Troubleshooting ..................................................................................... 28Dynamic Power Measurements .............................................................. 31Specifications ......................................................................................... 33Warranty Information ............................................................................. 35International Information........................................................................ 36

Sections markedADVANCED OPERATION

include in-depthtechnical information

Sections markedTROUBLESHOOTING

include recommendationsfor curing

installation problems

Sections markedINSTALLATION

include slam dunkwiring connections

INSTALLATION

TROUBLE-SHOOTING

Welcome to Rockford Fosgate! This manual is designed to provideinformation for the owner, salesperson and installer. For those of youwho want quick information on how to install this product, please turnto the Installation Section of this manual or refer to the icons listedbelow. Other information can be located by using the Table of Contents.We, at Rockford Fosgate, have worked very hard to make sure all theinformation in this manual is current. But, as we are constantly findingnew ways to improve our product, this information is subject to changewithout notice.

G E T T I N G S T A R T E D

1

INTRODUCTION

TECHNICAL DESIGN FEATURES

This manual provides information on the features, installation and opera-tion of the Rockford Fosgate 2.3, 2.6x and 4.6x Amplifiers. We suggest yousave this manual for future reference.

We strongly recommend you have your Authorized Rockford FosgateDealer install your new Rockford Fosgate amplifier. If you do choose toinstall your amplifier yourself, please be sure to read the entire manualbefore beginning.

ACCESSORY PACKInstallation & Operation Manual(1) Fuseholder(1) ATC 10 Amp Fuse (2.3)(1) ATC 20 Amp Fuse (2.6x)(1) ATC 30 Amp Fuse (4.6x)(1) 3/32" Allen Wrench

u TRANSANA(TRANSconductance Active Nodal Amplifier)

The TRANSANA (TRANSconductance Active Nodal Amplifier) is acircuit that allows the audio signal to pass through the amplifier at lowvoltage. The signal is directly level-shifted to the fixed high voltagerails via a pair of driver transistors. Signal linearity is assured by anactive node formed by the drive transistors at ultrasonic frequencies.This allows amplifier performance similar to transnova which ishighly stable and linear while utilizing the advantages of a non-floating power supply.

THE RESULT: An extended frequency bandwidth accurately suppliedto the output stages of the amplifier.

u TOPAZ (Tracking Operation Pre-Amplifier Zone)The TOPAZ (Tracking Operation Pre-Amplifier Zone) circuitry solvesground loop noise problems common to automotive amplifier design.This innovative new development allows vastly improved isolation ofthe input signal grounds from the power supply ground of theamplifier. This is accomplished by allowing the source unit to controlthe potential environment of the entire input structure or zone ofthe amplifier. This process improves the noise rejection of the ampli-fier by 30-40dB an astounding 30-100 times better than amplifierswithout TOPAZ.

THE RESULT: Elimination of troublesome ground loop noise betweensource and amplifier.

2

u MOSFET DevicesRockford Fosgate is one of the few manufacturers in the soundcommunity to utilize MOSFET devices in both the power supply andthe output stages. MOSFET (Metal Oxide Semiconductor Field EffectTransistor) devices offer several important inherent advantages overthe 30 year old technology of bi-polar design. These advantagesinclude: thermal stability, switching speed, ultra low output imped-ance and wider bandwidth linearity. In addition, MOSFETs operatevery similarly to vacuum tubes in that they are more linear than bi-polar transistors. However, MOSFETs can deliver the midrange claritywithout the limitations of transient response and high frequencyphase shifting normally associated with tube operation.

THE RESULT: Operational characteristics similar to vacuum tubeswithout the performance limitations of tube design.

3

u DSM (Discrete Surface Mount) TechnologyThe DSM (Discrete Surface Mount) manufacturing process combinesthe advantages of both discrete components and integrated circuitry.Rockford Fosgate is the only American amplifier manufacturer to haveinvested millions into this process. DSM components differ fromconventional discrete components in different ways. They are morecompact, more rugged, and they efficiently dissipate generated heat.Using them wherever appropriate allows the advantages associatedwith discrete circuitry to be retained while also providing room forboth highly advanced processing features and generous PC boardcopper paths where needed. Their short lead-out structures allowmaximum audio performance and highest signal-to-noise ratios to beobtained in amplifiers of desirable package size without resorting toamplifier-on-a-chip shortcuts. These advantages are shown belowin Figure 1.

Figure 1

THE RESULT: Fewer connections, improved reliability, shorter signalpaths, superior signal-to-noise ratio and awesome sonic performance.

Solder Solder

Component

Thru-Hole Surface Mount

PCBoard PC

Board

u NOMAD (NOn-Multiplying Advanced Decision)All Rockford Fosgate amplifiers use an analog computer process tomaximize safe output power under all operating conditions. Theinnovative NOMAD (NOn-Multiplying Advanced Decision) systemis the most sophisticated version of this technique ever used, bringingpreviously unavailable levels of accuracy, stability, temperatureimmunity and reliability to this critical process. NOMAD makesadvanced decisions based on device voltages to precisely control theawesome levels of current available in the output MOSFETs to safevalues but only when absolutely needed.

THE RESULT: Extremely fast protection system that always protectsthe amplifier and never degrades the sound.

4

u High Level InputsThe high level inputs on the Rockford Fosgate amplifiers convert thespeaker line outputs (high level) to preamp line inputs (low level).This allows amplifier compatibility with a variety of source units aswell as the ability to integrate into factory systems without the needfor external adapters.

THE RESULT: Allows compatibility with factory and aftermarketsource units.

u XCard Crossover (2.6x & 4.6x)The 2.6x and 4.6x amplifiers utilize internal active crossovers. Thesecrossovers have many performance advantages such as using dis-crete components for exact frequency adjustments which are farsuperior to potentiometers. Additionally, the XCard can be config-ured for high-pass, low-pass and full range operation. With slightmodification, many crossover frequencies and slope configurationscan be achieved.

THE RESULT: Increased system design flexibility with a preciseelectronic crossover without the limitations of conventional poten-tiometer designs.

5

2.3, 2.6X, 4.6X DESIGN FEATURES

CAUTION! Any adju

stment to

the Bias control

s may damage

your amplifier a

nd will void

your warranty.

CAUTION!Do Not Adjust

8

.3 .6&

Speaker SpeakerB+L+ L- R+ R-High InGain

L&R

L R L R

GN

D

LEDInput REM GND

BiasBias

5 34 7

2

1

6

+ +


8

BiasBias

Speaker SpeakerB+

LEDREM GND

7

1

.6CAUTION!Do Not Adjust

8

BiasBias

L RInput

5 3

L RInput

5 346

LF+ LF- RF+ RF-Speaker

LR LR+Speaker

RR RR+

2

6

Gain

L&R

High InL R

GN

D

+ + Gain

L&R

High InL R

GN

D

+ +

4

6

1. Extruded HeatsinkThe extruded aluminum heatsink of the RF amplifier dissipatesheat generated by the amplifier's circuitry.

2. Power/Speaker Barrier StripThe barrier strip uses screw terminals that will accept #10 spadelugs or bare speaker and power wire sizes from 10-18 AWG.These gold-plated connectors are immune to corrosion that willcause signal degradation.

3. RCA Input JacksThe industry standard RCA jack provides an easy connection forsignal level input. They are gold-plated to resist the signaldegradation caused by corrosion.

4. High Level InputsThe high level input connectors accept 1/8" spade lugs for theconnection of a source unit that has only speaker line (high level)outputs.

5. Input Sensitivity ControlsThe input level controls are preset for 500mV which will matchthe output of most source units. They can be adjusted to matchoutput levels from a variety of source units.

6. Internal CrossoverThe built-in crossover card is configurable for a multitude ofoperating frequencies. The orientation of the card in its socketdetermines its function of high-pass, low-pass or full rangeoperation.

7. LED Power IndicatorThe LED gives a visual indication of the status of the amplifier,lighting when the unit is turned on.

8. Bias ControlsThe Bias controls are preset at the factory and are not useradjustable. CAUTION! ANY ADJUSTMENT TO THE BIASCONTROLS WILL VOID YOUR WARRANTY!

7

INSTALLATION CONSIDERATIONSThe following is a list of tools you will need for installing the amplifier:

Wire Cutters #2 Phillips ScrewdriverWire Strippers Assorted wire connectorsWire Crimpers Battery Post WrenchVoltmeter Electric Hand Drill with assorted bits

This section focuses on some of the vehicle considerations forinstalling your new amplifier. Checking your battery and presentsound system, as well as pre-planning your system layout and bestwiring routes will save installation time. When deciding on the layoutof your new system, be sure that each component will be easilyaccessible for making adjustments.

Before beginning any installation, be sure to follow these simple rules:

1. Be sure to carefully read and understand the instructions beforeattempting to install the amplifier.

2. For safety, disconnect the negative lead from the battery prior tobeginning the installation.

3. For easier assembly, we suggest you run all wires prior tomounting your amplifier in place.

4. Route all of the RCA cables close together and away from any highcurrent wires.

5. Use high quality connectors for a reliable installation and tominimize signal or power loss.

6. Think before you drill! Be careful not to cut or drill into gas tanks,fuel lines, brake or hydraulic lines, vacuum lines or electricalwiring when working on any vehicle.

7. Never run wires underneath the vehicle. Running the wires insidethe vehicle provides the best protection.

8. Avoid running wires over or through sharp edges. Use rubber orplastic grommets to protect any wires routed through metal,especially the firewall.

9. ALWAYS protect the battery and electrical system from damagewith proper fusing. Install a fuseholder and appropriate fuse onthe +12V power wire within 18 (45.7 cm) of the battery terminal.

10. When grounding to the chassis of the vehicle, scrape all paintfrom the metal to ensure a good, clean ground connection.Grounding connections should be as short as possible and alwaysbe connected to metal that is welded to the main body, or chassis,of the vehicle.

8

MOUNTING LOCATIONThe mounting location and position of your amplifier will have agreat effect on its ability to dissipate the heat generated during normaloperation. The design of our aluminum heatsink serves to easilydissipate the heat generated over a wide range of operating condi-tions. However, to maximize the performance of your amplifier, careshould be taken to ensure adequate ventilation.

Trunk MountingMounting the amplifier vertically on a surface with the fin groovesrunning up and down will provide the best cooling of the amplifier.

Mounting the amplifier on the floor of the trunk will work butprovides less cooling capability than vertical mounting.

Mounting the amplifier upside down to the rear deck of the trunk willnot provide proper cooling and will severely affect the performanceof the amplifier and is strongly not recommended.

Passenger Compartment MountingMounting the amplifier in the passenger compartment will work aslong as you provide a sufficient amount of air for the amplifier to coolitself. If you are going to mount the amplifier under the seat of thevehicle, you must have at least 1" (2.54cm) of air gap around theamplifier's heatsink.

Mounting the amplifier with less than 1" (2.54cm) of air gap aroundthe amplifier's heatsink in the passenger compartment will notprovide proper cooling and will severely affect the performance ofthe amplifier and is strongly not recommended.

Engine Compartment MountingRockford Fosgate amplifiers should never be mounted in the enginecompartment. Not only will this void your warranty but could createan embarrassing situation caused by the ridicule from your friends.

BATTERY AND CHARGINGAmplifiers will put an increased load on the vehicle's battery andcharging system. We recommend checking your alternator andbattery condition to ensure that the electrical system has enoughcapacity to handle the increased load of your stereo system. Stockelectrical systems which are in good condition should be able tohandle the extra load of any Rockford amplifier without problems,although battery and alternator life can be reduced slightly. Tomaximize the performance of your Rockford Fosgate amplifier, wesuggest the use of a heavy duty battery, high output alternator and anenergy storage capacitor.

WIRING THE SYSTEM

9

CAUTION: Avoid running power wires near the low level inputcables, antenna, power leads, sensitive equipment or harnesses. Thepower wires carry substantial current and could induce noise intothe audio system.

For safety, disconnect the negative lead from the battery prior tobeginning the installation.

1. Remove the cover and configure the internal XCard crossoversprior to installation. Refer to Using the XCard (page 13) forfurther information.

2. Plan the wire routing. Take care when running signal level RCAcables to keep them close together but isolated from the amplifier'spower cables and any high power auto accessories, especiallyelectric motors. This is done to prevent coupling the noise fromradiated electrical fields into the audio signal. When feeding thewires through the firewall or any metal barrier, protect them withplastic or rubber grommets to prevent short circuits. Leave thewires long at this point to adjust for a precise fit at a later time.

3. Prepare the Power cable for attachment to the amplifier bystripping 1/2" of insulation from the end of the wire. Insert thebared wire into the B+ terminal and tighten the set screw to securethe cable in place.

NOTE: The B+ cable MUST be fused 18" or less from the vehicle'sbattery. Install the fuseholder under the hood and prepare thecable ends as stated above. Connections should be water tight.

10

Trim the power cable within 18" of the battery andstrip 1/2" of insulation from the end of the wire.Cut the wire loop that is attached to the fuseholderin half and splice the fuse into the power lineusing appropriate inline connectors. Use thesection of cable that was trimmed earlier andconnect it to the other end of the fuseholder.

4. Strip 1/2" from the battery end of the power cableand crimp a large ring terminal to the cable. Use the ring terminalto connect to the battery positive terminal. Do not install the fuseat this time.

5. Prepare the Ground cable for attachment to the amplifier bystripping 1/2" of insulation from the end of the wire. Insert the baredwire into the GND terminal and tighten the set screw to secure thecable in place. Prepare the chassis ground by scraping any paintfrom the metal surface and thoroughly clean the area of all dirt andgrease. Strip the other end of the wire and attach a ring connector.Fasten the cable to the chassis using a non-anodized screw and astar washer.

6. Prepare the REM turn-on wire for connection to the amplifier bystripping 1/2" of insulation from the wire end. Insert the baredwire into the REM terminal and tighten the set screw to secure thecable into place. Connect the other end of the REM wire to aswitched 12 volt positive source. The switched voltage is usuallytaken from the source unit's auto antenna or the accessory lead.If the source unit does not have these outputs available, therecommended solution is to wire a mechanical switch in line witha 12 volt source to activate the amplifier.

7. Securely mount the amplifier to the vehicle or amp rack. Becareful not to mount the amplifier on cardboard or plastic panels.Doing so may enable the screws to pull out from the panel due toroad vibration or sudden vehicle stops.

8. Connect the source signal to the amplifier by plugging the RCAcables into the input jacks at the amplifier.

9. Connect the speakers. Strip the speaker wires 1/2" and insert intothe speaker terminal and tighten the set screw to secure intoplace. Be sure to maintain proper speaker polarity. DO NOTchassis ground any of the speaker leads as unstable operationmay result.

10. Perform a final check of the completed system wiring to ensurethat all connections are accurate. Check all power and groundconnections for frayed wires and loose connections which couldcause problems.

Cuthere

X

11

USING PASSIVE CROSSOVERS

A passive crossover is a circuit that uses capacitors and/or coils and isplaced on speaker leads between the amplifier and speaker. Thecrossover delegates a specific range of frequencies to the speaker foroptimum driver performance. A crossover network can perform one ofthree functions: High-Pass (capacitors), Low-Pass (inductors or coils)and Bandpass (combination of capacitor and coil).

The most commonly used passive crossover networks are 6dB/octavesystems. These are easy to construct and require one component perfilter. Placing this filter in series with the circuit will reduce power tothe speaker by 6dB/octave above or below the crossover pointdepending on whether it is a high-pass or low-pass filter. Morecomplex systems such as 12dB/octave or 18dB/octave can causeimpedance problems if not professionally designed.

Passive crossovers are directly dependent upon the speaker's imped-ance and component value for accuracy. When passive crossovercomponents are used in multiple speaker systems, the crossover'seffect on the overall impedance should be taken into considerationalong with the speaker's impedance when determining amplifierloads. CAUTION: The Rockford Fosgate amplifiers are not recom-mended for impedance loads below 2 stereo and 4 bridged(mono) loads.

advanced

Operation

12

TABLE OF CROSSOVER COMPONENT VALUES

6 dB/Octave Low-Pass 6 dB/Octave High-Pass

Freq.Hertz

Speaker Impedance

80 4.1mH 1000F 8.2mH 500F 16mH 250F100 3.1mH 800F 6.2mH 400F 12mH 200F130 2.4mH 600F 4.7mH 300F 10mH 150F

200 1.6mH 400F 3.3mH 200F 6.8mH 100F260 1.2mH 300F 2.4mH 150F 4.7mH 75F400 .8mH 200F 1.6mH 100F 3.3mH 50F

600 .5mH 136F 1.0mH 68F 2.0mH 33F800 .41mH 100F .82mH 50F 1.6mH 26F

1000 .31mH 78F .62mH 39F 1.2mH 20F

1200 .25mH 66F .51mH 33F 1.0mH 16F1800 .16mH 44F .33mH 22F .68mH 10F4000 .08mH 20F .16mH 10F .33mH 5F

6000 51H 14F .10mH 6.8F .20mH 3.3F9000 34H 9.5F 68H 4.7F .15mH 2.2F

12000 25H 6.6F 51H 3.3F 100H 1.6F

2 OHMS 8 OHMS4 OHMS

L C L C L C

L C

L = Low-Pass (Inductor)C = High-Pass (Capacitor)

For more information, see your Authorized Rockford Fosgate Dealer.

6 dB/Octave High-Pass and Low-Pass Filters

advanced

Operation

3386fo

= R (in k) for .047f cap

= R (in k) for .022f cap7234fo

Where: R = fo = desired crossover frequencyc = capacitor in faradsex: .047 x 10-6 for .047mf cap

The crossover point can be altered by changing the resistor value. Usethe following formula to select the appropriate resistor value to beplaced on the XCard.

USING THE XCARD

12pifoc

The actual formula is:

R =

The crossover functions are controlled through the use of an XCardand can be set for high-pass, low-pass or full range operation. The100Hz XCard shipped with your amplifier is set for Full Range. Eachcrossover card has two faces: one face operates Full Range, the otherhas arrows to indicate the edge for selecting HP (high-pass) or LP (low-pass) operation. Orient the card with the desired operating edge,indicated by the arrow, toward the socket terminals inside the ampli-fier. Firmly, but carefully, plug the card into the socket.

13

CUSTOMIZING THE XCARD

advanced

Operation

Low-Pass Full RangeHigh-Pass

FULL HP

LP

HP

LP

Crossover CardHigh PassLow PassFull Range

R1

R2

R1

R2FULLC1 C2 C1 C2

14

RESISTOR CHARTadvanced

Operation

Frequency R1 R220Hz 169k 169k25Hz 133k 133k30Hz 110k 110k35Hz 95.3k 95.3k40Hz 84.5k 84.5k45Hz 75k 75k50Hz 68.1k 68.1k55Hz 61.9k 61.9k60Hz 56.2k 56.2k65Hz 52.3k 52.3k70Hz 48.7k 48.7k75Hz 45.3k 45.3k80Hz 42.2k 42.2k85Hz 40.2k 40.2k90Hz 37.4k 37.4k200Hz 16.9k 16.9k300Hz 11.3k 11.3k400Hz 8.45k 8.45k500Hz 6.65k 6.65k600Hz 5.62k 5.62k700Hz 4.75k 4.75k800Hz 4.22k 4.22k900Hz 3.74k 3.74k1kHz 3.40k 3.40k1.2kHz 2.80k 2.80k2kHz 1.69k 1.69k3kHz 1.10k 1.10k4kHz 845 8455kHz 665 6656kHz 562 5627kHz 487 4878kHz 422 422

Butterworth Alignment Q = .7071% resistors used with 0.047F caps

Butterworth Alignment Q = .7071% resistors used with 0.022F caps

Our tests have shown that using 0.047f capacitors for frequencies below 100Hz, and0.022f capacitors for frequencies above 100Hz, result in more linear crossovercontrol. Refer to the Specifications page to determine the capacitor value of eachsupplied XCard.

Frequency R1 R220Hz 357k 357k25Hz 287k 287k30Hz 237k 237k35Hz 205k 205k40Hz 178k 178k45Hz 162k 162k50Hz 143k 143k55Hz 130k 130k60Hz 121k 121k65Hz 110k 110k70Hz 102k 102k75Hz 95.3k 95.3k80Hz 90.9k 90.9k85Hz 84.5k 84.5k90Hz 80.6k 80.6k200Hz 35.7k 35.7k300Hz 23.7k 23.7k400Hz 17.8k 17.8k500Hz 14.3k 14.3k600Hz 12.1k 12.1k700Hz 10.2k 10.2k800Hz 9.9k 9.9k900Hz 8.6k 8.6k1.0kHz 7.15k 7.15k1.2kHz 6.04k 6.04k2.0kHz 3.57k 3.57k3.0kHz 2.37k 2.37k4.0kHz 1.76k 1.76k5.0kHz 1.43k 1.43k6.0kHz 1.21k 1.21k7.0kHz 1.02k 1.02k8.0kHz 909 909

15

XCARD ACCESSThe internal XCard crossover(s) are accessible by removing the topcover from the amplifier. The XCard should be inserted with the filterside (HP, LP or FULL RANGE) facing the metal contacts inside thesocket (toward RCA jacks).

Remove Four Allen Screws from cover with supplied Allen wrench (3/32") Insert XCard into socket with HP, LP, or FULL RANGE facing RCA jacks


BiasBias

Speaker SpeakerB+

LEDREM GND

.6CAUTION!Do Not Adjust

BiasBias

Gain

L&R

L RInput Gain

R

Gain

L

L RInput

LF+ LF- RF+ RF-Speaker

LR LR+Speaker

RR RR+

Low-Pass Full RangeHigh-Pass

FULL HP

LP

HP

LP

High InL R

GN

D

+ +

High InL R

GN

D

+ +

2.3 & 2.6X INSTALLATION

16

INSTALLATION

High Level Input Single Ended TypeThis configuration is used for source units that have Single Ended speaker outputs.Only the + output is hot, whereas the or common are common grounded. Toverify your source unit has these outputs, connect an ohm meter across the outputand radio chassis for a reading of 0.

L+ and R+ Inputs are connected to corresponding + speaker outputs L and R Inputs are not used GND Input is connected to speaker outputs

CAUTION: Use 1/8" female connectors when using the high level inputs and DO NOTsolder wires directly to the connector

High Level Input B.T.L. TypeThis configuration is used for source units that have B.T.L. speaker outputs (BridgedTransformer Less not Bacon Tomato & Lettuce). Both + and outputs are consideredhot or floating.

L+ and R+ Inputs are connected to corresponding + speaker outputs L and R Inputs are connected to corresponding speaker outputs GND Input is not used unless noise problems arise

B+GainL+R L R

LEDInput REM

Front

SpeakerL + L - R + R -

SpeakerGND

L

R+R

L+

+ + GN

D

High InL R

AUD SEL

1 2 3 4 5 6

RDMRPTSCAN PAUSED.SCN DIM

AMFMCh

RPTLD RDMDISC

ST P.SCN LOUDDSPL

R

CLOCK ILLUM

PWR

AUTO

VOL TUNE

Front

R+

GND

B+GainL+R L R

LEDInput REM

L+

SpeakerL + L - R + R -

SpeakerGND

GN

D

+ +

High InL R

100.7+ v^

Factory Radio

17

Power Connections

Stereo Operation

RCA Inputs are connected to both left and right inputs Impedance Load for each channel should be 2 minimum XCard can be set for High-Pass, Low-Pass or Full Range

INSTALLATION

Speaker SpeakerB+LF+ LF- R F + R F -

L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D+

LHigh In

+ GainL+R

R

GN

D

+ L

High In

+

Connect to B+ of batterywith 30A fuse

Less than 18"

Connect to remoteturn-on lead of

source unit Connect to chassisground of vehicle

Speaker SpeakerB+L + L - R + R -

L R

LEDInput REM GND

2 Min.

.3

+ +

2 Min.

GainL+R

High InRL

+ + GN

D

18

Mono Operation

RCA Inputs are connected to both left and right inputs Impedance Load for mono channel should be 4 minimum XCard can be set for High-Pass, Low-Pass or Full Range

Stereo/Mono Operation

RCA Inputs are connected to both left and right inputs Impedance Load for each stereo channel should be 2 minimum Impedance Load for mono channel should be 4 minimum XCard set for Full Range Passive Crossovers are needed for proper Stereo/Mono operation

INSTALLATION


L R

LEDInput REM GND

4 Min.

.3

+

GainL+R

High InRL

+ + GN

D


L R

LEDInput REM GNDGain

L+R

2 Min.

.3

+ +

2 Min.

4 Min.

+

RL+ + G

ND

High In

19

4.6X INSTALLATIONINSTALLATION

High Level Input Single Ended TypeThis configuration is used for source units that have Single Ended speaker outputs.Only the + output is hot, whereas the or common are common grounded. Toverify your source unit has these outputs, connect an ohm meter across the outputand radio chassis for a reading of 0.

L+ and R+ Inputs are connected to corresponding + speaker outputs L and R Inputs are not used GND Input is connected to speaker outputs

CAUTION: Use 1/8" female connectors when using the high level inputs and DO NOTsolder wires directly to the connector

High Level Input B.T.L. TypeThis configuration is used for source units that have B.T.L. speaker outputs (BridgedTransformer Less not Bacon Tomato & Lettuce). Both + and outputs are consideredhot or floating.

L+ and R+ Inputs are connected to corresponding + speaker outputs L and R Inputs are connected to corresponding speaker outputs GND Input is not used unless noise problems arise


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RGainL+R

Front

R+

Rear

L+

100.7+ v^

Factory Radio

L+

R

GN

D

+ L

High In

R+

High InRL

+ + GN

D

+

GND GND


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RGainL+R

Front

R+

Rear

L

L+

R

GN

D

+ L

High In

R

High InRL

+ + GN

D

+

L

R

R+

L+

AUD SEL

1 2 3 4 5 6


AMFMCh

RPTLD RDMDISC

ST P.SCN LOUDDSPL

R

CLOCK ILLUM

PWR

AUTO

VOL TUNE

Power Connections

2-Channel Stereo Operation

RCA Inputs connect to all inputs Gain Controls for front and rear channels set equally to balance each subwoofer Impedance Load for left bridged channel should be 4 minimum Impedance Load for right bridged channel should be 4 minimum Front XCard can be set for High-Pass, Low-Pass or Full Range Rear XCard can be set for High-Pass, Low-Pass or Full Range

INSTALLATION

20


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

4 Min.

+

4 Min.

+


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

Connect to B+ of batterywith 30A fuse

Less than 18"

Connect to remoteturn-on lead of

source unit Connect to chassisground of vehicle

RCA Inputs connect to all inputs Gain Controls for front and rear channels set equally to balance subwoofers Impedance Load for front bridged channel should be 4 minimum Impedance Load for rear bridged channel should be 4 minimum XCards for front and rear are set identically as High-Pass, Low-Pass or Full Range

INSTALLATION

RCA Inputs connect to all inputs Gain for front and rear channels operate independently Impedance Load for front stereo channels should be 2 minimum Impedance Load for rear bridged channel should be 4 minimum Front XCard can be set for High-Pass, Low-Pass or Full Range Rear XCard can be set for High-Pass, Low-Pass or Full Range

* NOTE: Invert the speaker wire polarity (+ and ) on the rear channels if XCard forfront channel is set to HP and XCard for rear channel is set to LP (or vice versa)

21

2-Channel Mono Operation

3-Channel Operation


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

4 Min.

+

4 Min.

+


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

2 Min.

+

4 Min.

+

2 Min.

+ *

4-Channel Stereo Operation

RCA Inputs connect to all inputs Gain Controls for front and rear channels operate independently Impedance Load for each stereo channel should be 2 minimum Front XCard can be set for High-Pass, Low-Pass or Full Range Rear XCard can be set for High-Pass, Low-Pass or Full Range

4-Channel Stereo/Single Mono Operation

RCA Inputs connect to all inputs Gain Controls for front & rear channels operate independently Impedance Load for front & rear stereo channels should be 2 minimum Impedance Load for rear mono channel should be 4 minimum Front XCard can be set for High-Pass, Low-Pass or Full Range Rear XCard set for Full Range Passive Crossovers are needed on rear channels for proper Stereo/Mono operation

INSTALLATION

22


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

2 Min.

+

2 Min.2 Min.

+

2 Min.

+ +


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

2 Min.

+

2 Min.2 Min.

+

2 Min.

+ +

4 Min.

+

4-Channel Stereo/Dual Mono Operation

RCA Inputs connect to all inputs Gain Controls for front and rear channels set equally to balance subwoofers Impedance Load for front & rear stereo channels should be 2 minimum Impedance Load for front & rear mono channels should be 4 minimum Front XCard set for Full Range Rear XCard set for Full Range Passive Crossovers are needed for proper Stereo/Mono operation

INSTALLATION

23


L R

LEDInput REM GND

SpeakerL R - L R +

SpeakerRR- RR+

Front Rear

L RInputGain

L+RR

GN

D

+ L

High In

+ GainL+R

R

GN

D

+ L

High In

+

2 Min.

+

2 Min.2 Min.

+

2 Min.

+ +

4 Min.

+

4 Min.

+

24

SYSTEM DIAGRAMS

*Refer to Table of Crossover Component Values on page 12 or ask your localAuthorized Rockford Fosgate Dealer for selecting proper capacitor/coil values.

60 Watt System (rated @ 4 ohms)Total Power Delivery (RMS)Tweeters 60 WattsMidrange 60 WattsWoofer 120 Watts

XCard

Full Range

ACTIVE TWEETER PROTECTIONPCH-142x

*+

+

6kHz-20kHz18dB/octave HP

100Hz-6kHz6dB/octave BP

20Hz-100Hz6dB/octave LP

4

+

ACTIVE TWEETER PROTECTIONPCH-142x

*

*+

+

PCH-414 SystemPCH-414 System

.6

AUD SEL

1 2 3 4 5 6


AMFMCh

RPTLD RDMDISC

ST P.SCN LOUDDSPL

R

CLOCK ILLUM

PWR

AUTO

VOL TUNE

Front XCard

Full Range

+

100Hz-20kHz6dB/octave HP

100Hz-20kHz12dB/octave HP

20Hz-100Hz6dB/octave LP

8

*

Rear XCard

HP

Factory SpeakerFront Left

*

+

Factory SpeakerRear Left

8

+

+

+

*

+

Factory SpeakerFront Right

Factory SpeakerRear Right

.6

AUD SEL

1 2 3 4 5 6


AMFMCh

RPTLD RDMDISC

ST P.SCN LOUDDSPL

R

CLOCK ILLUM

PWR

AUTO

VOL TUNE

25


120 Watt System (rated @ 4 ohms)Total Power Delivery (RMS)Front 60 WattsRear 60 WattsWoofers 120 Watts

26


150 Watt System (rated @ 4 ohms)Total Power Delivery (RMS)Tweeters 90 WattsMidrange 90 WattsWoofer 120 Watts

XC

ard

Full

Ran

ge

AC

TIV

E TW

EETE

R P

RO

TEC

TIO

NPC

H-1

42x

*+

+

8kH

z-20

kHz

12dB

/oct

ave

HP

100H

z-20

kHz

6dB

/oct

ave

HP

20H

z-10

0Hz

6dB

/oct

ave

LP

4

+

AC

TIV

E TW

EETE

R P

RO

TEC

TIO

NPC

H-1

42x

*

+

+

PCH

-414

Sys

tem

PCH

-414

Sys

tem

Fro

nt

XC

ard

HP

+

*+

+

*

*

PCH

-14

PCH

-44

8kH

z-20

kHz

18dB

/oct

ave

HP

100H

z-8k

Hz

6dB

/oct

ave

BP

.3.6

Fron

tR

ear

+

AU

DSEL

12

34

56

RD

MRPT

SC

AN

PAU

SE

D.S

CN

DIM

AM

FMC

hR

PT

LDR

DM

DIS

CST

P.SC

NLO

UD

DSPL

R

CLO

CK

ILLU

M

PWR

AU

TO

VO

LTU

NE

27


300 Watt System (rated @ 4 ohms)Total Power Delivery (RMS)Tweeters 120 WattsMidrange 120 WattsWoofers 120 Watts

.6

XC

ard

HP

8kH

z-20kH

z12dB

/oct

ave

HP

100H

z-20kH

z12dB

/oct

ave

HP

20H

z-100H

z12dB

/oct

ave

LP

Fro

nt

XC

ard

HP

+

+

+

PC

H-1

4

PC

H-4

4

.6

PC

H-1

4

PC

H-4

4

+

+

+

PC

H-1

4

PC

H-4

4

PC

H-1

4

PC

H-4

4

Fro

nt

XC

ard

HP

XC

ard

HP

8kH

z-20kH

z12dB

/oct

ave

HP

100H

z-20kH

z12dB

/oct

ave

HP

XC

ard

LP

4

+

4

+

4

+

4

+

+

Fro

nt

Rea

r

+

.6

AU

DSEL

12

34

56

RD

MRPT

SC

AN

PAU

SE

D.S

CN

DIM

AM

FM

Ch

RP

TLD

RD

MD

ISC

ST

P.SC

NLO

UD

DSPL

R

CLO

CK

ILLU

M

PW

R

AU

TO

VO

LTU

NE

28

TROUBLESHOOTING

Amplifier does notturn on(Power LED is off)

Symptom Diagnosis Remedy

Voltage applied to theREM terminal of theamplifier is not between10.5 and 15.5 volts orthere is no voltagepresent.

Voltage to the B+ termi-nal of the amplifier isnot between 10.5 and15.5 volts or there is novoltage present.

Amplifier is not prop-erly grounded.

Amplifier has nosound(Power LED is on)

RCA Input from sourceunit is not connected ornot functioning properly.

XCard is missing or notplaced properly in cross-over slots.

Speaker leads are shortedto each other or to thechassis of the vehicle.

Speakers are defective.

Check connections, substi-tute with known workingsource and cables and repairor replace as necessary.

Check XCard position andrepair or replace as neces-sary.

Disconnect existing speakersand test with known workingspeakers and wires. If ampli-fier plays, check and repairwiring and installation ofspeakers as necessary.

Disconnect existing speak-ers and test with knownworking speakers. If ampli-fier plays, check and repairspeakers as necessary.

Check the alternator, bat-tery, fuse, and wiring andrepair as necessary. If thevoltage is above 15.5 volts,have the electrical systeminspected by an authorizedcar service center.

Check the alternator, bat-tery, fuse, and wiring andrepair as necessary. If thevoltage is above 15.5 volts,have the electrical systeminspected by an authorizedcar service center.

Check wiring and repair asnecessary.

TROUBLE-SHOOTING

29

Speaker OutputLow or Distorted

Readjust input gains ofamplifier.

Check system with knownworking source and repairor replace original sourceas needed.

Check XCard position andrepair or replace as neces-sary.

Check the alternator, bat-tery, fuse, and power andground wiring. Repair asnecessary.


Input gain signal foramplifier is incorrectlyset.

Source unit output toolow or source unit hasno output.

XCard is missing or notplaced properly in cross-over slots.

Low battery voltage orlarge voltage drops tothe amplifier under load.

Amplifier Noise(Turn-on Pop)

Voltage spike from out-put of preceding compo-nent is entering amplifierthrough input signal.

Voltage spike from re-mote turn-on lead is en-tering through REM in-put terminal.

Disconnect input signal toamplifier and turn ampli-fier on and off. If noise iseliminated, connect REMlead of amplifier to sourceunit with a delay turn-onmodule.

Use a different 12 voltsource for REM lead ofamplifier (i.e., battery di-rect). If noise is eliminated,use a relay to isolate am-plifier from noisy turn-onoutput.

TROUBLE-SHOOTING

30

Noise is radiating intoRCA signal cable.

Bad component in the sig-nal chain.

Noise is radiating intospeaker cables.

Multiple grounds in theaudio system.

Ground loop betweensource unit and antenna.

No reference ground

Engine Noise


Check connections, andrun the RCA cables on adifferent route away fromsources of high current.

Check connections, and by-pass additional components(crossovers and equalizers)between the source unit andthe amplifier. Connect onecomponent at a time to de-termine the culprit. Repairor replace components asnecessary.

Disconnect existing speak-ers and connect a testspeaker to the output ter-minals of the amplifier. Ifnoise is gone, reroute thespeaker cables away fromsources of high voltage.

Check ground connectionsand connect amplifiers, sig-nal processors, and othercomponents to a centrallocation or try a differentgrounding point on thechassis.

Check connections anddisconnect antenna fromsource unit. If noise is gone,install an antenna groundloop isolator.

Connect GND terminal ofhigh level input to chassisof source unit.

If noise persists, see your Authorized Rockford Fosgate Dealer.

TROUBLE-SHOOTING

Engine Noise withhigh level inputs

DYNAMIC POWER MEASUREMENTS

About the Dynamic Power MeasurementsThe Audio Graph PowerCube is a test instrument used to measure theoutput of an amplifier in accordance with IHF-202 industry standards. TheIHF-202 standard is a dynamic power measurement and was developedas a means of measuring power in a manner that best represents the RealWorld operation of an amplifier. Many manufacturers, including RockfordFosgate, at times will measure amplifier power into a fixed resistor (4 ohm,2 ohm). While this method is useful in some types of evaluation andtesting, it is not representative of an amplifier that is connected to a speakerand playing music.

MusicMusic is dynamic; the sound waves are complex and constantly changing.In order to simulate this, the IHF-202 standard calls for the input signal tothe amplifier to be a 1kHz bursted tone. This signal is input (on for 20milliseconds) and reduced 20dB for 480 milliseconds. The signal isgradually increased in level until the amplifier's output exceeds 1% TotalHarmonic Distortion (THD). At 1% distortion becomes audible, therefore,any power produced above that level is considered unusable. Manymanufacturers represent their amplifiers' output power in excess of 10%distortion. They use many names for this measurement, such as TotalMaximum Power or Maximum Output Power. This is not indicative of theactual usable output power.

Listening to Loudspeakers - Not ResistorsA loudspeaker is not a resistor. A resistor's value (resistance measured inohms) is fixed. A loudspeaker's impedance is dynamic. It is constantlychanging in value, dependent upon the frequency of the input signal.Therefore, measuring power with the amplifier loaded into a 4 ohmresistor is not the same as measuring power with the amplifier connectedto a 4 ohm speaker. Most people do not listen to music through a resistor.

A 4 ohm speaker may experience a drop in impedance 4-6 times lower thanits nominal (printed) impedance. A speaker will also create phase shifts inthe signal that is passed through it. These phase shifts happen because aspeaker is an inductor (voice coil) and a capacitor (compliance of thesurround/spider), as well as a resistor (voice coil wire).

To simulate a speaker the Audio Graph PowerCube measures outputpower into 20 different loads. It tests at 8 ohms, 4 ohms, 2 ohms and 1ohm. Each of these impedances is also tested at 60, 30, 0, +30 and+60 phase angles. These different impedances and phase angles repre-sent the shifts in impedance and phase that can occur in a typicalloudspeaker.

31

Information CubedThe data acquired in the testing procedure is then graphed in the formof a 3-dimensional cube, hence the name PowerCube.

The Phase Angle is expressed on the horizontal axis, the OutputVoltage is presented on the vertical axis and the Impedance isdisplayed on the Z axis. Output Power, in watts, is listed on the lefthand side for each impedance at each phase angle.

What is an Amplifier?An amplifier by definition is a voltage generating device, recreatingthe signal which is input to it identically but with increased volume.It will be connected to a reactive load (the speaker). The impedanceof this load and phase of the signal passing through the load will vary,dependent upon the frequency of the input signal (music).

Therefore, a perfect amplifier will be able to maintain the same outputvoltage regardless of load characteristics and will not alter the signalit is reproducing. A perfect amplifier when measured by the AudioGraph PowerCube would present data that forms a perfect cube.Unfortunately, amplifiers are not perfect. The laws of physics gener-ally prevent it. A great amplifier is about the best one can hope toattain.

As you can see by the PowerCube and as you will experience bylistening, your Punch amplifier is a GREAT AMPLIFIER!

60 (Cap)0

(Ind) +601

24

Impedance

8

10V

30V

50V

8 6030

03060

4 6030

03060

2 6030

03060

1 6030

03060

85 W84 W84 W84 W86 W

162 W157 W156 W157 W162 W273 W258 W251 W256 W271 W390 W356 W346 W352 W390 W

Audio Graph The PowerCube

Amplifier:Serial No:Owner :

PUNCH 200.2

14.4V x 2

ROCKFORD CORPORATION

Rated Power : 100 W @ 4 Ohms

IM

PE

DA

NC

E

MODEL BEINGTESTED

x2 = STEREOMONO = BRIDGED MONO

VOLTAGE FROMBATTERY

OU

TP

UT

V

OL

TA

GE

*

*

*

*

PHASE ANGLES

{POWERINWATTS

{ { Example of a Punch 200x2 PowerCube

32

SP

EC

IFIC

AT

ION

S

2.3

2.6x

4.6x

Dyn

amic

Pow

er R

atin

g (IH

F 20

2 St

anda

rd) -

Mea

sure

d at

14.

4 V

olta

ge

Per

chan

nel i

nto

a 4

Loa

d35

Wat

ts55

Wat

ts55

Wat

ts

Per

chan

nel i

nto

a 2

Loa

d50

Wat

ts75

Wat

ts75

Wat

ts

Bri

dged

Mon

o in

to a

4

Loa

d10

0 W

atts

150

Wat

ts15

0 W

atts

x 2

Con

tinuo

us P

ower

Rat

ing

(Com

petit

ion

Stan

dard

) - M

easu

red

at 1

4.4

Bat

tery

Vol

tage

RM

S co

ntin

uous

pow

er p

er c

hann

el, a

ll ch

anne

lsdr

iven

into

a 4

lo

ad fr

om 2

0 to

20,

000

Hz

with

less

than

0.0

8% T

otal

Har

mon

ic D

isto

rtio

n (T

HD

)15

Wat

ts 3

0 W

atts

30

Wat

ts

RM

S co

ntin

uous

pow

er p

er c

hann

el, a

ll ch

anne

lsdr

iven

into

a 2

lo

ad fr

om 2

0 to

20,

000

Hz,

with

less

than

0.3

0% T

otal

Har

mon

ic D

isto

rtio

n (T

HD

)30

Wat

ts 6

0 W

atts

60

Wat

ts

RM

S co

ntin

uous

pow

er b

ridg

ed/m

ono

into

a 4

lo

adfr

om 2

0 to

20,

000

Hz

with

less

than

0.3

0% T

otal

Har

mon

ic D

isto

rtio

n (T

HD

)60

Wat

ts12

0 W

atts

120

Wat

ts x

2

33

.3.6

.6

34

.6.6

.3Si

gnal

-to-

Noi

se R

atio

>10

0dB

(A

-wei

ghte

d)

Ban

dwid

th10

Hz

to 2

50kH

z

3dB

Dam

ping

Fac

tor

@ 4

>

200

Freq

uenc

y R

espo

nse

20 H

z to

20

kHz

0.

5dB

Slew

Rat

e30

Vs

IM D

isto

rtio

n (IH

F)

manual rockford fosgate 23 26x and 46x amplifiers

Documents

t i o n

n t e n t sintroduction

n d o p e r

u d i o f

rockford fosgate products

rockford accessories

new rockford fosgate

new rockford fosgateproduct