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There are currently no product reviews.
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Good quality, the manual help me to repair the echo/reverb section
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A good service manual with lots of info and a very fair price
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Great value, good scan, just as expected, everything that you need.
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Good scan, great price, but almost the same with the SV260 service manual.
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This PDF is very comprehensive. It includes drawings, parts lists, schematics, pictures, PCB drawings, mechanical layouts, etc. for all three stackable equipment. The scans are good too. Easy to read and no smudges or black lines. I have no complaints. I will make this site my first stop for finding my service manuals.
GTO1220 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) 91 dB 300 WRMS (1,200 WPEAK) 20 ~ 450 HZ 2 OHMS 3.0" (76.2 MM)
SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
GTO1220
(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: R
EVC
90 Out-Of-Car 85
(OHMS) . . . . . . 2.04
VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH) . . . . . . . 0.70 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: S D (IN 2) . . . . . . . . 74.71 S D (CM2) . . . . . . 482.00 BL (TM) . . . . . . . . 12.33 VAS (FT3) . . . . . . . . 1.73 VAS (LITERS) . . . . . 49.03 C MS (µM/N) . . . . 148.61 MMS (GRAMS). . . . 220.77 MMD (GRAMS) . . . 214.68 FS (HZ) . . . . . . . . 27.79 Q MS . . . . . . . . . . . 6.18 Q ES . . . . . . . . . . . . 0.52 Q TS . . . . . . . . . . . . 0.48 HAG (IN) . . . . . . . . . 0.47 HAG (MM) . . . . . . . 12.00 H (IN) . . . . . . . . . 1.28
VC
80 75 70
65
C
60 20 Frequency 50 100 Hz 200 500 1k
2k
SEALED TRANSDUCER EXCURSION @ 400 W
20.0 Xd mM 17.5 15.0
12.5
10.0
7.5
HVC (MM) . . . . . . . 32.50 X MAX (IN) . . . . . . . . 0.40 X MAX (MM) . . . . . . 10.25
5.0 2.5 0.0 20 Frequency 50 100 Hz 200 500 1k
C
2k
JBL Consumer Products � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.jbl.com
 $4.99 GTO1220 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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