JBL GTO 301.1 - Table of Contents; Specifications

- 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 ..……….……….…….….…13
VERSION II ELECTRICAL PARTS LIST ADDENDUM….……….16
IC/TRANSISTOR PINOUTS..……..….…….….….….…..17
GTO 301.1 SCHEMATICS………..…………..…..……...20
GTO 301.1II SCHEMATICS………...……….…………...22
PACKING……..……………………………......................24
GTO 301.1/ GTO 301.1II Specifications
Output Power: 204W RMS x 1 channels @ 4 ohms; ≤1% THD + N
(14.4V supply) 294W RMS x 1 channels @ 2 ohms; ≤1% THD + N
Signal-to-noise ratio: 77dBA (reference 1W into 4 ohms)
Dynamic power: 320W @ 2 ohms
Effective damping factor: 6.39 @ 4 ohms
Frequency response: 10Hz – 302Hz (–3dB)
Maximum input signal: 4.7V
Maximum sensitivity: GTO 301.1 - 220mV
GTO 301.1II - 75mV
DC Offset <50mV (-50%)
Output regulation: .098dB @ 4 ohms
Idle Current 0.90A
Input Impedance 22kΩ
Max Current Draw 22A @ 4 ohms
39A @ 2 ohms
Dimensions: 11 5/8 x 12 5/16 x 2 3/8” (L x W x D)
(295mm x 313mm x 60mm)
Fuses: 30A
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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Power Amplifier GTO 301.1/301.1II