Adcom GFP-750 User Manual

1. PRODUCT DESCRIPTION
1.1. GFP-750 Front Panel Diagram & Remote Control
Stereo/Reverse/Mono
Switch (reverse) or combine (mono) channels
Input Source Selection
Select input source
®
Passive Mode On/Off
Bypass active gain stages
Power On/Off
Turn unit on and off.
©
External Processor
Engage external processor
©
Balance Control
Adjust balance level
©
Infrared Remote
Control Sensor Lens
Receiver for remote control IR signal
©
Volume Control
Adjust volume level
©
Mute
Engage Mute circuitry
1.2. GFP-750 Rear Panel Diagram
@ CD Balanced Inputs
^l) Gold Jumpers
@ Unbalanced Stereo Inputs
@ Tape Loop Stereo In/Out
@ External Processor
Loop Stereo In/Out
@ Main 1 and Main 2
Unbalanced Stereo Outputs
@ Main 3
Balanced Stereo Outputs
(T^ Remote Control Infrared
repeater outputs (x 2)
(18) Remote Control
Sensor Input
Master On/Off Switch
@ AC Power Cord Socket
@ Switched AC Outlet
2

Adcom GFP-750 Specifications

Audio Output Specifications

output level	1.0 V
THD+N @ rated output (20Hz to 20kHz) balanced	<0.025%
THD+N @ rated output (20Hz to 20kHz) unbalanced	<0.095%
THD+N @ rated output (1kHz) balanced	<0.015%
THD+N @ rated output (1kHz) unbalanced	<0.017%
output impedance balanced	<1200 Ω
output impedance unbalanced	<600 Ω
frequency response (balanced and unbalanced)	20Hz to 20kHz, -0.25dB to +0dB
IM distortions CCIF (balanced)	<0.009%
IM distortions CCIF (unbalanced)	<0.035%
SMPTE (balanced)	<0.05%
SMPTE (unbalanced)	<0.05%
signal to noise ratio (ref. to 1 volt) 'A' weighted (balanced)	>102 dB
signal to noise ratio (ref. to 1 volt) 'A' weighted (unbalanced)	>102 dB

Input Specifications

input impedance balanced	94 kΩ
input impedance unbalanced	47 kΩ
input sensitivity @ rated output balanced	183 mV
input sensitivity @ rated output unbalanced	365 mV

Power and Dimensions

power	115 VAC-50/60Hz
power consumption	30 VA
chassis dimensions	3 1/2” (89 mm) x 17" (432 mm) x 11" (279 mm)
maximum dimensions	4 1/8" (105 mm) x 17" (432 mm) x 12” (305 mm)
weight	6.8 kg
packed weight	7.7 kg