Infinity 1211a - Introduction; Installation Warnings and Tips; Mounting and Connections; Location and Mounting

- 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 1211a ELECTRICAL PARTS LIST ADDENDUM…...…20
IC/TRANSISTOR PINOUTS..…………………………….21
REF 1210a SCHEMATICS………..…………..……..…..27
REF 1211a SCHEMATICS………..……………………..30
PACKING……………………….…………………………33
Reference 1210a/1211a Specifications
Output Power: 854W RMS x 1 @ 4 ohms; ≤1% THD + N
(14.4 VDC) 1300W RMS x 1 @ 2 ohms; ≤1% THD + N
Signal-to-noise ratio: 72dBA (reference 1W into 4 ohms)
Dynamic power: 1516W channels @ 2 ohms
Effective damping factor: 6.357 @ 4 ohms
Frequency response: 17Hz – 302Hz (-3dB)
Maximum input signal: 5.7V
Maximum sensitivity: Reference 1210a - 260mV
Reference 1211a - 75mV
DC Offset <50mV (-50%)
Output regulation: .132dB @ 4 ohms
Idle Current 2.8A
Input Impedance 22kΩ
Max Current Draw 70A @ 4 ohms
125A @ 2 ohms
Dimensions: 12 x 18 1/2 x 2 11/16” (L x W x D)
(305mm x 470mm x 68mm)
Fuse: 3 x 40A
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 1210a/1211a
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