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JBL Incorporated, 8500 Balboa Boulevard, P.O. Box 2200, Northridge, California 91329 U.S.A.
Technical Manual
VTX A12
SPECIFICATIONS ACOUSTIC & ELECTRICAL SPECIFICATIONS: • Frequency Range (–10 dB): 46 Hz – 19 kHz (Preset: VTXA12)
• Maximum SPL Output: 146 dB (Preset: VTXA12) • System Impedance: LF: 2 x 8 ohms; MF: 8 ohms;
HF: 8 ohms • System Input Power Rating: LF: 2 X 800 W Continuous
(IEC/100 hour)
MF: 400 W Continuous (IEC/100 hour) HF: 150 W Continuous (IEC/100 hour)
SYSTEM COMPONENTS: • Cabinet: Enclosure (Not For Sale) • Grille: 5075135
Low Frequency Driver: 2264H x 2, 12 in woofer; Dual 3 in diameter voice coil, Neodymium Differential Drive
• D.C.Resistance: 5.1 ohms +/- 10%
• Mid Frequency Driver:
2165H x 4, 5.5 in; Dual 2 in diameter voice coil, Neodymium Drive
• D.C.Resistance: 5.3 ohms +/- 10%
SYSTEM COMPONENTS: (CONT’D) • High Frequency Driver: 2423K x 3, 2 in diameter annular diaphragm; 2
in diameter voice coil, Neodymium Magnet Diaphragm. • D.C.Resistance: 20.50 ohm +/- 0.2 ohm AURAL SWEEP TEST SPECIFICATIONS: A. System.Aural Sweep Test: 7 V Input, 40 Hz to 21 kHz B. L.F.Aural Sweep Test: 10 V Input, 50 Hz to 1,700 Hz C. M.F.Aural Sweep Test: 7 V Input, 60 Hz to 4 kHz D. H.F.Aural Sweep Test: 2 V Input, 300 Hz to 20.6 kHz PHYSICAL SPECIFICATIONS: • Enclosure Dimensions: 330.2mmX1,118mX495.3mm
(H x W x D): (13” X 44” X 19.5”) • Net Weight: 134 lb (60.8 kg)
WARRANTY INFORMATION: • Refer to Warranty Statement packed with each product.
PACKAGING: WIRING DIAGRAM:
JB
L V
TX
A12
R
EV
A
VTX A12
COMPONENT PARTS LIST:
Item Part Number Description Qty.
1 364835-001 GASKET, ENCLOSURE 7
2 445327-001 GASKET, HANDLE VTX 2
3 446372-001 HANDLE ASSY, VTX 4
4 446375-001 LOGO 2
5 5026065 #8-32 CHEESE HD, TORX, W/PATCH 32
6 5045942 SCR,PT,M5X26mm,PANHD,TORX,BLK,MAGNI577 32
7 5054362 SCR,PT,M5x16MM,PAN HEAD,TORX,BLK 16
8 5069905X M/I, 2264H 2
9 5072915X M/I, 2423K 3
10 5073648 SPACER, SHOULDERED 16
11 5074111X M/I, 2165 4
12 5075135 FRONT GRILL 1
13 5077562 HORN,FRONT 2
14 5077563 RBI 4
15 5077564 WAVEGUIDE,OUTER SHELL 6
16 5077565 WAVEGUIDE,INNER SHELL 6
17 5077566 HORN,REAR 2
18 5077567 HF PLATE 1
19 5078244 GASKET,SIDE PANEL 2
20 5078366 GASKET,WAVEGUIDE 1
21 5078367 GASKET,HORN 2
22 5079118 INPUT PLATE ASSEMBLY 1
23 5080754 SCR,M6X50,SKT,HEX,BLACK,ALLOY,PATCH 16
24 5080759 GASKET,RBI 4
25 5080761 GASKET,SIDE,WAVEGUIDE 6
26 5080762 SCR,10-32 X 2 1/2,SOC CAP,BLK,ALLOY,PATCH 4
27 5080811 FOAM,WAVEGUIDE 3
28 803-12011-12 SCR,8-32 X 3/4,FLT,TORX,BLK ZC, LCS 10
29 803-42011-12 SCR,8-32 X 3/4,PAN,TORX,BLK ZINC,LCS_ 12
30 804-42111-16 SCR,10-32X1,PAN,TORX,BLK 38
31 818-11710-25 SCR,M10 X 25MM,FLT,PH,BLK ZINC,LCS 8
32 834-36010-00 NUT, 1/4-20, NYLOC, BLACK 3
33 872-33004-16 SCR,6-32X1,SKT,CLEAR,ALLOY 6
34 875-33011-20 SCR,1/4-20 X 11/2,SCKT,HEX,BLK ZINC,MCS 3
35 882-41110-10 SCR, 6 X 5/8,PAN,PH,PB,BLK ZINC,LCS 8
39 5072816 BALL LOCK PIN, 3/8" X 16MM, LONG BUTTON 6
40 5080758 GASKET,FRAME COVER 2
JB
L V
TX
A12
R
EV
A
VTX A12
JB
L V
TX
A12
R
EV
A
JBL VTX A12
JB
L V
TX
A12
R
EV
A
VTX A12
WIRING DIAGRAM
JB
L V
TX
A12
R
EV
A
VTX A12
SUSPENSION FRAME ASSEMBLY
Item Part Number Description Qty.
1 5041961 EXTERNAL RETAINING RING-CIRCLIPS 3/8" SHAFT
1
2 5073506 ARM,SUSPENSION FRAME 1
3 5073543 LEVER, RELEASE 1
4 5073544 EASYLATCH 1
5 5073545 PIN,LATCH 5
6 5073642 SPRING, TENSION,LATCHMECH
2
7 5073646 PIN,PIVOT,ARM,SUSPENSION FRAME
1
8 5073649 SPACER, SUSPENSION FRAME 8
9 5073983 LABEL,ANGLE,RIGHT 1
11 5078469 PIN,SPRING,RETAINING 2
12 5078593 PLATE,TOP,SUSPENSION FRAME
1
13 5078594 PLATE,BOTTOM,SUSPENSION FRAME
1
14 5079774 PIN, LATCHMECH RETAINING 2
15 5080753 NUT,10-32,THIN,NYLON LOCK,ZINC
8
10 5084778 UNIORING,LATCHPIN,VTX-A12
2
16 804-42111-12 SCR,10-32 X 3/4,PAN,TORX,BLK ZINC,LCS
8
17 5073982 LABEL,ANGLE,LEFT 1
JB
L V
TX
A1
2
RE
V A