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Technical Manual
4312/4312B MkII R/L
JBL Consumer Products, Inc. 250 Crossways Park Dr., Woodbury, New York 11797 7/01
+IN
-IN
.250
+
.250
—
.110 — 0030
1
GRN/BLK +—
+
—
WHT
NETWORK,4312 MkII — 332276-001
4312B MkII — 66324-0060
WOOFER,2213H
TWEETER,4312 MkII — 74856 (052Ti)
4312B MkII — 68669-02 (AO35TiA)
4312/4312B MkII R/L SCHEMATIC
GRN/BLK
GRN
YEL/BLK
H.F.
L.F.
GRN
WHT/BLK
+
.2 mH L1
MIDRANGE,104H-3
+ —
YEL YEL/BLK
C1 10 uF
C2 .01 uFR1 8 ohm
L-PAD
C3 3.0 uF
C4 .01 uFR2 8 ohmL-PAD
.205
WHT
WHT/BLK
YEL
+
—
M.F.
ACOUSTIC & ELECTRICAL SPECIFICATIONS:• Nominal Impedance: 6Ω• Max Amp Power 150 watts*• Frequency Response 45 Hz – 22 kHz (-6dB)• Sensitivity: [email protected] volts/1 meter• Crossover Frequency: 2000Hz, 5000Hz
SYSTEM COMPONENTS:• Cabinet 4312/4312B MkII R/L
(Not for Sale)• Grille:
Grill (Blk) 61989Grill (Blue) 61989-01
• Low-Frequency Transducer 2213HDC Resistance 5.0 Ω±10%
• Mid-Frequency Transducer 104H-3DC Resistance 4.3 Ω±10%
• High-Frequency Transducer: 4312 MkII – 74856 (052Ti)4312B MkII – 68669-02
(A035TiA)DC Resistance 3.5 - 3.8 Ω
• Crossover Network 4312 MkII – 332276-0014312B MkII – 66324-0060
AURAL SWEEP TEST SPECIFICATIONS:• System Aural Sweep Test 6.0V Input 40 Hz to 22 kHz• L.F. Aural Sweep Test 5.0V Input 40 Hz to 2.5 kHz• M.F. Aural Sweep Test 4.0V Input 1 kHz to 6 kHz• H.F. Aural Sweep Test 2.83V Input 4 kHz to 22 kHz
PHYSICAL SPECIFICATIONS:• Enclosure dimensions: 23-1/2” x 14-1/4” x 11-3/4”
(597mm x 368mm x 298mm)• Weight 48 lbs (21.7 kg) Each
WARRANTY:• Refer to Warranty Statement packed with each product.
* The maximum recommended amplifier power rating willensure proper system headroom to allow for occasional peaks.We do not recommend sustained operation at these maximumpower levels.
PARTS LIST WIRING DIAGRAM
4312
/431
2B
MkI
I R
/L
DESCRIPTION PART NO.WOOFER GASKET 32756-01
PORT TUBE 52211GASKET (TWT) 66553FLOWER POT 76041OUTER CARTON 332269-001 (Walnut & Dark Grey)
332269-002 (Grey)334889-001(Black)
WARRANTY CARD 331994-001END PAD (2) 47218-01T-NUT (4) 61861DAMPING PAD 73906DUAL TERMINAL 323892-001FACEPLATE (TWT) 68643-02