Adcom GFP-750 User Manual

@ Tapeln/out
The tape outputs are fixed level outputs. The signal is selected by the input source knob or input buttons
on the remote control. {The tape outputs are muted when tape is selected as the input source or when the
processor loop is engaged.)
@ Processor
The processor in/out connectors allow for convenient connection of an external processor, like ADCOM’s
GSA-700 surround sound processor. The connection diagrams under Audio/Home Theater and Multi-
Channel Audio detail basic connection methods that take advantage of this feature. When the processor
feature is activated the external processor controls the volume and balance of the system.
@ Main Unbalanced Stereo Outputs
Main 1 is an unbalanced line level stereo output to be connected to the amplifier’s unbalanced inputs.
Main 2 accommodates a second amplifier for multi-room or multi-zone operation.
@ Main Balanced Stereo Outputs
Main 3 is a balanced line level stereo output for use with amplifiers that utilize balanced inputs.
© Remote Control Infrared Repeater Output
Connect the ACCOM IRA-50011 infrared repeater to control other remote controlled equipment via the
remote sensor extension.
® Remote Control Sensor Input
Connect either the ACCOM XR-500II or SPM-500II to extend the remote control capabilities of the GFP-
750 via an external room or zone.
® Master On/Off Switch
The rear panel Master On/Off Switch allows the unit to be electrically disconnected from
the AC power source without having to remove the AC power cord. We recommend the
Master On/Off switch be pushed to the “O” (off) position when the unit will be left unat¬
tended for an extended period of time.
IF THE GFP-750 DOES NOT RESPOND TO REMOTE CONTROL COM¬
MANDS, AND THE AC POWER CORD IS INSTALLED, CHECK THAT THE
MASTER ON/OFF SWITCH IS IN THE “I” ON POSITION.

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