JBL GTO Series 601.1, Service Manual, Page: 2 / 28

- CONTENTS -
SPECIFICATIONS ………………………………….……..1
FEATURES/TEST CONDITIONS……..…………………2
INSTALLATION………………….……...……..…...…...…3
CONNECTIONS………………….……...……..…...…..…4
SET-UP/CONTROLS ……..………………..…….….…...5
INSTALLING NEON TUBES..…….…….………………..5
BASIC TROUBLESHOOTING..…….…….………………6
TYPICAL SYSTEM WIRING..…….…….……………..…7
EXPLODED VIEW/PARTS LIST…….….….…………....8
MECHANICAL PARTS LIST..…….…….……………......9
AMPLIFIER BLOCK DIAGRAM…………………….……10
P.C.B. DRAWINGS….……………………………….…….11
ELECTRICAL PARTS LIST ..……….……….…….….…14
IC/TRANSISTOR PINOUTS..……..….…….….….….…..18
SCHEMATICS………..……………………….…………...24
PACKING……..…………………………………………....27
GTO 601.1 Specifications
Output Power: 424W RMS x 1 channels @ 4 ohms; ≤ 1% THD + N
(14.4V supply) 580W RMS x 1 channels @ 2 ohms; ≤ 1% THD + N
Signal-to-noise ratio: 72dBA (reference 1W into 4 ohms)
Dynamic power: 778W @ 2 ohms
Effective damping factor: 6.32 @ 4 ohms
Frequency response: 10Hz – 302Hz (–3dB)
Maximum input signal: 5.3V
Maximum sensitivity: 210mV
DC Offset <50mV (-50%)
Output regulation: .21dB @ 4 ohms
Idle Current 1.3A
Input Impedance 22k Ω
Max Current Draw 39A @ 4 ohms
67A @ 2 ohms
Dimensions: 15 1/8 x 12 5/16 x 2 3/8” (L x W x D)
(384mm x 313mm x 60mm)
Fuses: 30A x 2
JBL 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.
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