- CONTENTS -
SPECIFICATIONS ………………………………….……..1
FEATURES/TEST CONDITIONS……..…………………2
CONTROLS/CONNECTIONS………….……..…...…..…3
INSTALLATION………………….……...……..…...…...…5
BASIC TROUBLESHOOTING..…….…….………………7
TYPICAL SYSTEM WIRING..…….…….……………..…8
EXPLODED VIEW/PARTS LIST…….….….…………....9
MECHANICAL PARTS LIST……………..…………......10
AMPLIFIER BLOCK DIAGRAM…………………………11
P.C.B. DRAWINGS….…………………………………….12
ELECTRICAL PARTS LIST ……………………………. 16
REF 611a ELECTRICAL PARTS LIST ADDENDUM…….…20
IC/TRANSISTOR PINOUTS..…………………………….21
REF 610a SCHEMATICS………..……….…….………..27
REF 611a SCHEMATICS………..……….……….……..30
PACKING……………………….…………………………33
Reference 610a/611a Specifications
Output Power: 456W RMS x 1 channels @ 4 ohms; ≤1% THD + N
(14.4V supply) 657W RMS x 1 channels @ 4 ohms; ≤1% THD + N
Signal-to-noise ratio: 70dBA (reference 1W into 4 ohms)
Dynamic power: 761W @ 2 ohms
Effective damping factor: 6.336 @ 4 ohms
Frequency response: 17Hz – 302Hz (–3dB)
Maximum input signal: 6.0V
Maximum sensitivity: Reference 610a - 250mV
Reference 611a - 75mV
DC Offset <50mV (-50%)
Output regulation: .179dB @ 4 ohms
Idle Current 1.5A
Input Impedance 22kΩ
Max Current Draw 43A @ 4 ohms
70A @ 2 ohms
Dimensions: 12 x 15 x 2 11/16” (L x W x D)
(305mm x 381mm x 68mm)
Fuses: 30A x 2
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.
Power Amplifier Reference 610a/611a
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