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The content of the manual was not found on the Internet and was a hard find. I check the net for 5 hours until I came across this web-site. When I did find the book it Auto loaded into my IPAD PDF shelf for books for review at anytime. Overall I am satisfied with the book and it answered all my questions. This repair book is obsolete because the product I bout it for is pretty old. Thanks for the help with the download and even having the manual. Thanks 73's K5HRD
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Excellent manual including schematics. The service was great and the manual helped complete the job.
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It was magic after so many years to still be able to source this info. It was equally amazing to return my Pioneer receiver to it near new sound quality AFTER NEARLY 30 YEARS! Thank you for this ability!
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Very quick and easy website to use and fast download of manual, quality of manual is excellent and will be pleased to use this service again in the future, thanks so much!
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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
Reference 1252w 12" Woofer � Technical Data
CAR AU DI O
SPECIFICATIONS
DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:
mounting depth 5-1/16" (129 mm)
12" (300MM) 93 dB 300 WRMS 1200 W PEAK 23 ~ 400 HZ 2 or 8OHMS 2.0" (51.0 MM)
SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)
Reference 1252w
(side view)
VBOX = 1.25 ft3 (35.40 liters)
cutout diameter 11-3/16" (284mm) outer diameter 12-7/16" (316mm)
SEALED ENCLOSURE FREQUENCY RESPONSE @ 2.83 V
105 dBSPL 100 95 90 85 80 75 70 65 60 55 20 Hz 30 40 50 60 70 80 90 100 200 300
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE: R EVC (OHMS) . . . . . . 1.85 VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (MH) . . . . . . . 1.12 DRIVER RADIATING AREA: S D (IN 2) . . . . . . . . 82.46 S D (M2) . . . . . . . 532.00 MOTOR FORCE FACTOR: BL (TM) . . . . . . . . 9.76 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: V (FT3) . . . . . . . . 3.48 VAS (LITERS) . . . . . 98.64 C MS (µM/N) . . . . 244.00 MMS (GRAMS). . . . 176.80 MMD (GRAMS) . . . 169.75 FS (HZ) . . . . . . . . 24.23 Q MS . . . . . . . . . . . 6.63 Q ES . . . . . . . . . . . 0.52 Q TS . . . . . . . . . . . . 0.48 HAG (IN) . . . . . . . . 3/8 H (MM) . . . . . . . . 9.00
AG AS
In-Car 12 dB LP @ 80 Hz
Out-Of-Car
SEALED ENCLOSURE CONE EXCURSION @ 300 W
30m M 20m 10m 5m 2m 1m 500u 200u 100u 50u 20u 10u 5u 20 Hz 30 40 50 60 70 80 90 100 200 300
HVC (IN) . . . . . . 1-11/16 HVC (MM) . . . . . . . . . . 43 X
MAX
(IN) . . . . . . . . 1/2
X MAX (MM) . . . . . . 12.50
Harman Consumer Group � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-674-4463 � www.infinitysystems.com
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