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I was very pleased with the service provided and was surprised at how good the quality was of the manual. I thought it may be a third generation copy or so, but it is as good as the websites that charge 3 times this much. I repair some electronics for family and friends without charge, so this is perfect for me. Thank you very much.
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The service was great and the document was also great. Highly recommend!!!!
If anyone has a users manual... Please email me. need one. $ [email protected]
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I needed a service manual as the display on my oscilloscope was very dim. I thought I'd give owner-manuals.com a try, as they advertised a huge number of manuals. Sure enough they had one listed. I bought it hoping it would be useful... actually, I bought it hoping it would be readable! I've had manuals from online sources in the past, and been very disappointed. Not this time! An excellent manual, complete, and very readable. Using it I fixed my 'scope, and as such the manual was an investment that paid off manyfold. Do I have any complaints? One very minor one - The circuit diagrams could have been scanned at a higher resolution, as some of the details were a little difficult to make out - not impossible, just not as easy as my old eyes would like! Overall, I'm very satisfied with my manual, and I will certainly be using this company again. Well done.
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I Have looked for this manual for quiet a while now, I have finally found it here. I believe this is the only place they have them in a very nice scan, pages are very clear to read, some of the pages are a bit tilted but overall it is great to have this manual available for purchase. Thanks
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This is quiet a rare manual, I Have looked for this manual for quiet a while now, I have finally found it here. I believe this is the only place they have them in a very nice scan, Excellent guide: very clear, enabling us to print readable diagram overall it is great to have this manual available for purchase. This is a complete service manual no pages are missing. Thanks
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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