- CONTENTS -
BASIC SPECIFICATIONS ………………..……….……..1
DETAILED SPECIFICATIONS ………….…..…….……..2
PACKING……………………….……………..……………3
APPLICATIONS……………………………………………4
INSTALLATION/SETUP…………………………...…...…6
BASIC TROUBLESHOOTING..…….…….………………6
EXPLODED VIEW/PARTS LIST………………………....7
AMPLIFIER BLOCK DIAGRAM……………………..……8
P.C.B. DRAWINGS….………………………………..……9
ELECTRICAL PARTS LIST ……………………………. 15
IC/TRANSISTOR PINOUTS..…………………………….20
SCHEMATICS……………….……..…………..……..…..21
Reference 475a Basic Specifications
Output Power:
75W RMS x 4 @ 4 ohms;
≤
1% THD + N
(14.4 VDC)
90W RMS x 4 @ 2 ohms;
≤
1% THD + N
Signal-to-noise ratio:
85dBA (reference 1W into 4 ohms)
Dynamic power:
117W channels @ 2 ohms
Effective damping factor:
6.3 @ 4 ohms
Frequency response:
10Hz – 100kHz (-3dB)
Maximum input signal:
6.0V
Maximum sensitivity:
100mV
Output regulation:
0.21dB @ 4 ohms
Dimensions (L x W x D):
14-3/16" x 9" x 2-11/16" (361mm x 229mm x 69mm)
Fuse:
2
x
35A
Infinity continually strives to update and improve existing products, as well as create new ones. The specifications
and details in this and related JBL publications are therefore subject to change without notice.
475a
Reference
Series
1
Содержание 475a
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