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The Service Manual was just as expected, complete with schematics and I was able to download it in less than an hour after I ordered it. The only problem with these is that the schematics are hard to read due to the small font. I could remedy this by printing them on a larger printer.
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Payments were processed quickly and items were exactly as described. I will use owner-manuals.com in the future for any other manual needs.
GTO1220D 12" Woofer � Technical Data
SPECIFICATIONS
DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:
mounting depth 6.81" (174.00 mm)
12" (304.8 MM) 94 dB 300 WRMS (1,200 WPEAK) 20 ~ 450 HZ 2 OHMS (PER COIL) 3.0" (76.2 MM)
SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
GTO1220D
(side view)
VBOX = 1.00 ft3 (28.32 liters)
(stuffed with loosely-packed fiberfill)
cutout diameter 10.88" (277.00 mm) outer diameter 12.31" (313.00 mm)
SEALED FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz 95
THIELE-SMALL PARAMETERS*
VOICE COIL DC RESISTANCE: DRIVER RADIATING AREA: MOTOR FORCE FACTOR: COMPLIANCE VOLUME: SUSPENSION COMPLIANCE: MOVING MASS, AIR LOAD: MOVING MASS, DIAPHRAGM: FREE-AIR RESONANCE: MECHANICAL Q: ELECTRICAL Q: TOTAL Q: MAGNETIC-GAP HEIGHT: VOICE-COIL HEIGHT: MAXIMUM EXCURSION: R
EVC
90 85
Out-Of-Car
(OHMS) . . . . . 1.000
VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH) . . . . . . 0.193 S D (IN 2) . . . . . . . . 74.71 S D (CM2) . . . . . . 482.00 BL (TM) . . . . . . . . . 8.68 VAS (FT3) . . . . . . . . 1.96 VAS (LITERS) . . . . . 55.46 C MS (µM/N) . . . . 168.09 MMS (GRAMS). . . . 212.93 MMD (GRAMS) . . . 206.84 FS (HZ) . . . . . . . . 26.60 Q MS . . . . . . . . . . . 6.69 Q ES . . . . . . . . . . . . 0.47 Q TS . . . . . . . . . . . . 0.44 H (IN) . . . . . . . . . 0.47
AG
80 75 70
65
60
C
20 Frequency
50
100 Hz
200
500
1k
2k
SEALED TRANSDUCER EXCURSION @ 400 W
20.0 17.5 Xd mM
15.0
12.5 10.0 7.5 5.0 2.5
HAG (MM) . . . . . . . 12.00 HVC (IN) . . . . . . . . . 1.28 HVC (MM) . . . . . . . 32.50 X MAX (IN) . . . . . . . .0.40 X MAX (MM) . . . . . . 10.25
*VOICE COILS CONNECTED IN PARALLEL
0.0
C
20
Frequency
50
100 Hz
200
500
1k
2k
JBL Consumer Products � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.jbl.com
 $4.99 GTO1220D JBL
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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