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Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
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I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
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A very well written and easy to understand manual.
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There was no problem at all.After paying i had to wait only a few hours,than i could
download the manual in best pdf-quality.
Thank You !
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I found this service manual to be complete in every detail except for troubleshooting charts. It would be helpful if it had a set of troubleshooting charts; however it is a very good manual otherwise and for the price it is very well worth it.
Technical Manual
ERS 800/820/840
SPECIFICATIONS
ACOUSTIC & ELECTRICAL SPECIFICATIONS:
Nominal Impedance: Power Rating: Crossover Frequencies: Frequency Response: Sensitivity: 4 ohms 20 to 75 watts RMS 3.8kHz 50Hz-45kHz 85dB 1watt/1 meter
Environmental Reference Series 2-Way Speaker
PHYSICAL SPECIFICATIONS:
1x - EMIT-N Tweeters 1x - 8" (20.3cm) IMG Woofer Baffle Dimensions: 15-1/2"H x 11-1/4"W" x 3-7/8"D XXXXX XX 39.4x28.6x9.8cm Hole Size Required: 14-1/8"H x 9-3/4"W XXXXXXXXXXXXX XX 35.9x24.8cm Tweeter Control #145-0103 Circuit Breaker Grille Grille Foam Crossover Logo #871-1974 #654-6550 #965-6551 #015-4339 #716-5719
PRODUCTION HISTORY
Introduced in (800:1989) (820:1991) (840:1994) Discontinued (800:1991) (820:1994) (840:1998) Original Retail Price: (800:$580.00/pair) (820/840:$600.00/pair)
NOTE: ERS800 MUST HAVE A SEPARATE INSTALLATION BRAKET
TECHNICAL INFORMATION
TWEETER #902-3082-N DIAPHRAGM #751-3722
C1 7µF Solen 1A-30
8" WOOFER #902-4347 (800/820) #902-7292 (840)
R3 5� 5W
3-1/2" BLU/BLK .110" FEMALE CLIP
L1 0.15mH
TWEETERS
INPUTS
3-1/2" BLUE .205" FEMALE CLIP
L4 0.48mH
4" RED .250" FEMALE CLIP
C2 12.5µF NPE
WOOFER
4" RED/BLK .205" FEMALE CLIP
REV A
9-98
INFINITY SYSTEMS INC., 250 Crossways Park Drive, Woodbury, New York 11797
ERS 800/820/840 Environmental Reference Series 2-Way Speaker
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