Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

*Warranty details can be found at music-group.com.

A fi xture on high level concert touring and outside broadcast events, DN1248PLS is a road-proven and reliable microphone signal splitting solution which has been used for mixing and recording important live events for posterity for well over a decade. DN1248PLS provides a four-way output split from each of its 12  input channels, which  feature MIDAS Heritage microphone preamplifi ers with +48 V phantom power and independent gain switching. A console-style Solo Bus and integrated headphone amplifi er is provided for monitoring input signals, an essential aid for system set-up and confi rming signal integrity.

As standard, DN1248PLS features two electronically-balanced outputs for connection to Front of House and monitor position mixing consoles and two transformer-balanced outputs, ideally suited for connection to third party recording and outside broadcast equipment. Optionally, all outputs may be transformer-balanced and a second power supply fi tted for dual redundancy, both these features are available as factory options (DN1248PLS-AT, DN1248PLS-DP and DN1248PLS-FM).

Award-winning MIDAS HERITAGE microphone preamplifi er for highest signal integrity

12 channel microphone splitter with 2 electronically balanced and 2 transformer balanced outputs per channel

Solo bus with integrated headphone amplifi er and level control

Independent +30 dB and -15 dB gain switches per channel

+48 V phantom power switch and earth lift switch per channel

Input and Output 1 duplicated on front and rear panels for cable looming fl exibility

Individual LED metering for each channel

Electronic outputs on rear panel for PA connections and front panel transformer outputs for broadcast feeds

Rugged 3U rackmount chassis for durability in portable applications

Auto-ranging universal switch-mode power supply

3-Year Warranty Program*

Designed and engineered in England

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Award-Winning MIDAS HERITAGE Microphone Preamplifi erThe MIDAS microphone preamplifi er is considered by leading live sound and recording engineers to be the very essence of the famous MIDAS sound. Decades of design experience paired with the fi nest choice of premium-grade components lead to the acclaimed warmth and depth - bringing out subtle ambience, maintaining spatial positioning and more eff ectively capturing a precise sound image. The acclaimed sound of the award-winning MIDAS microphone preamplifi er has inspired generations of live sound engineers to their best work, creating sonic panoramas that have captivated audiences worldwide.

Since pristine sound always begins with the microphone preamplifi er, the fi rst point where the signal  enters the console, DN1248PLS features MIDAS HERITAGE microphone preamplifi ers, which  faithfully reproduce every sonic detail so no part of a performance will ever be missed. Transparent and pristine sound, low noise and high common-mode rejection are all hallmarks of this classic design.

Over the years many mix engineers have found this robust and overload-tolerant design takes on a whole new dimension of sound when driven hard, the crystal-clear audiophile reproduction giving way to just the right combination of harmonics, a warm and organic sound heard by millions of concert goers and recorded for posterity on countless live albums over the years.

Solo Bus with Integrated Headphone Amplifi erDN1248PLS features a console-style Solo Bus which allows monitoring of the incoming signals at source using the integrated headphone monitoring amplifi er. The Solo Bus also features both input and output connectors, allowing the bus to be cascaded between multiple units, so that all channels can be monitored from a single unit's headphone amplifi er. Each channel is equipped with an illuminated Solo switch which features dual modes of operation - channels may be selected on either an additive or an exclusive basis. A 6-segment LED bargraph meter is provided to provide a clear indication of the channel, or channels, being monitored, and a level control is also provided for the headphone amplifi er.

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Comprehensive Channel ControlIn addition to the dual-mode Solo switch, each input channel also features illuminated switches for +48 V phantom power and earth lift, allowing for 'at a glance' status display, even at wide distances and viewing angles. Independent +30 dB and -15 dB gain switches are provided for each channel, which may also be used in combination for +15 dB gain. Each channel also has individual LED metering for signal present and clipping indication.

Flexible ConnectionsDN1248PLS is confi gured for both the requirements of PA rental companies and outside broadcasters, with front and rear panel connections designed for the convenience of both. The rear panel connections are designed to meet the cable looming requirements of rental companies, and  feature a duplicate set of the input connections plus two electronically-balanced splitter outputs, intended for connection to Front of House and monitor consoles. These outputs are servo-balanced and have high-drive capability to cope with long cable runs. One set of electronically-balanced outputs is also duplicated on the front panel for added convenience.

Two sets of transformer balanced-outputs are provided on the front panel of DN1248PLS to suit the needs of outside broadcasters, especially when connecting to units belonging to PA rental companies where the rear panel connections are already in use for the mixing console and stage connections. This separation of front and rear panel connections greatly simplifi es the cable looming for both parties and avoids any need to re-patch cables.

A replacement DN1248DP blanking panel is also available, allowing users to fi t their own choice of connectors such as multi-pin types. All internal rear panel loom connections are made to spring-loaded terminal connectors so that soldering is not required.

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Auto-Ranging Universal Switch-Mode Power SupplyDN1248PLS features a universal power supply, which is auto-voltage sensing for use on a worldwide  basis.

Built for the RoadFeaturing a rugged steel 3U rackmount enclosure, the DN1248PLS is designed for the rigours of live concert touring. Premium Neutrik* connectors are used to ensure reliable audio connections, night after night.

You Are CoveredWe always strive to provide the best possible Customer Experience. Our products are made in our own MUSIC Group factory using state-of-the-art automation, enhanced production workfl ows and quality assurance labs with the most sophisticated test equipment available in the world. As a result, we have one of the lowest product failure rates in the industry, and we confi dently back it up with a generous 3-Year Warranty program.

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Dimensions

TOP

FRONT

19.0

[0.7

5]30

0 [1

1.8]

319

[12.

6]

132

[5.2

]

441 [17.3]

483 [19.0]

CL

RIGHT

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Technical Specifi cations

Inputs

Input impedance > 2 kΩ

CMRR > -100 dB @ 100 Hz to 10 kHz

Equivalent input noise < -100 dBu @ unity gain

Signal present level > -25 dBu

Signal clip level > +21 dBu

Electronically-Balanced Outputs

Source impedance 50 Ω

Min load 600 Ω

Max level > +21 dBu @ 1 kHz

Connectors 3 pin male XLR (external),

3 way terminal strip (internal)

Transformer-balanced outputs

Source impedance 70 Ω

Min load 600 Ω (-3 dB level loss into 200 Ω )

Max level + 18 dBu @ 1 kHz

Connectors 3 pin male XLR (external),

3 way terminal strip (internal)

Performance

Electronically balanced outputs

Frequency response +0 / -0.5 dB 20 Hz to 20 kHz

Distortion (THD+N) < 0.01% @ 1 kHz +4 dB

Transformer balanced & isolated outputs

Frequency response +0 / -1.0 dB 20 Hz to 20 kHz

Distortion < 0.04% @ 1 kHz +4 dB

Terminations

Audio Inputs / Outputs 3 pin XLR

Power IEC

Power Requirements

Voltage 100 to 240V ± 10% 50/60 Hz <60W

Dimensions

Width 483 mm (19.0")

Depth 319 mm (12.6")

Height 132 mm (5.2")

Weight

Net 7.4 kg (16.3 lbs)

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Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS

Architecture & Engineering Specifi cationsThe microphone splitter shall perform the function of splitting each of 12 discrete microphone channels into four outputs. Each channel shall have a microphone preamplifi er, two transformer-isolated outputs, and two electronically balanced outputs. Each channel shall also provide separate +15 dB boost and -30 dB pad switches, switchable +48V phantom power, an earth lift function and a soloing facility.

The microphone splitter shall have a headphone amplifi er to allow the monitoring of soloed audio channels. The headphone amplifi er shall have a headphone jack socket for the headphones, a rotary level control for the headphones output and a six-segment LED bargraph for monitoring the soloed signal level.

The microphone splitter shall have the following audio connections for each of the twelve audio channels, which shall be via 3-pin XLR style connectors -

• Inputs: two parallel-connected female XLR connectors (one on the front panel and the other on the rear panel).

• Transformer Outputs: one male XLR connector on the front panel for each of the two outputs.

• Electronic Outputs: one output with one front and one rear panel male XLR connectors, one output with one rear panel male XLR connector only.

The microphone splitter rear panel connectors shall be mounted on three removable plates, and shall be grouped as one panel of input connectors and two panels of output connectors.

The microphone splitter shall have all inputs and outputs available internally on PCB-mounted terminal strips to enable users to retrofi t alternative rear panel connector confi gurations.

The microphone splitter shall include an auto-ranging universal switch-mode power supply for use on a worldwide basis.

The microphone splitter shall be housed in a standard 3U 19" rackmount chassis, and shall be 483 mm wide x 319 mm deep x 132 mm high (19.0" x 12.60" x 5.2"), with nominal weight 7.4 kg (16.3 lbs). The microphone splitter shall be installed in a rack frame or road case capable of safely supporting its weight. Input, output, and power connections shall be made at the rear panel of the microphone splitter. Installers shall allow adequate space at the rear for connection and disconnection of input, output, and power connections. The power requirements shall be 100 to 240 VAC, 50 to 60 Hz.

The microphone splitter shall be the KLARK TEKNIK model DN1248PLS and no other alternative shall be acceptable.

For service, support or more information contact the KLARK TEKNIK location nearest you:

Europe MUSIC Group Services UKTel: +44 156 273 2290Email: CARE@music-group.com

USA/Canada MUSIC Group Services NV Inc.Tel: +1 702 800 8290Email: CARE@music-group.com

Japan MUSIC Group Services JP K.K.Tel.: +81 3 6231 0454Email: CARE@music-group.com

MUSIC Group accepts no liability for any loss which may be suff ered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifi cations, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. MIDAS, KLARK TEKNIK, LAB.GRUPPEN, LAKE, TANNOY, TURBOSOUND, TC ELECTRONIC, TC-HELICON, BEHRINGER, BUGERA, DDA and TC APPLIED TECHNOLOGIES are trademarks or registered trademarks of MUSIC Group IP Ltd. © MUSIC Group IP Ltd. 2015 All rights reserved.

Product Information Document

12 Input, 48 Output Active Microphone Splitter

Mixer Accessories

DN1248PLS