Adcom GTP-880Specification, Preamplifier Analog Section, Preamplifier Digital Section, General

GTP-880 Specification

Preamplifier Analog Section

Input Impedance		26KΩ
Output Impedance (Main-RCA)		<600Ω
Rated Input		1.0Vrms
Maximum Input		7.0Vrms
Rated Output (100kΩ load)		2.0Vrms
Minimum Load		5kΩ
Maximum Output		9.5Vrms
Volume Range
Main	-80dB to +10.0 dB (1dB res)
Zone	-80dB to +10.0 dB (1dB res)
Bass Management
High-Pass Slope		Crossover Frequency
(Small Speaker Setting)		12 dB/octave (2nd order)
	(Adj. 40/60/80/100/120/150Hz)
Low-Pass Slope (Subwoofer) ....		24 dB/octave (4th order),
		40-150Hz as above
Tone Control
Bass Center Frequency/Range		100Hz / ± 8dB
Treble Center Frequency/Range		.......... 10kHz / ± 8db
Channel Separation (at 1kHz)		80dB
Crosstalk Between Inputs (at 1kHz)		.................. 85dB

Preamplifier Digital Section

Frequency Response
Direct Inputs	10 Hz to 20 kHz +0 / -0.2 dB
Analog-DSP Inputs	10 Hz to 20 kHz +0 / -0.5 dB
Digital Inputs	10 Hz to 20 kHz +0 / -0.4 dB
THD+N (at Rated Input & Output)
6-Channel Direct Inputs	0.0035% (80 kHz BW)
Analog-Direct Inputs	0.0035% (AES17 filter)
Analog-DSP Inputs	0.005% (AES17 filter)
Digital Inputs	0.0025% (80 kHz BW)
IMD (CCIF) @ 15 kHz & 16 kHz
6-Channel S/E Inputs	0.003%
All Other Analog Inputs	0.002%
Digital Inputs	0.005%
S/N Ratio (ref. 2.0Vrms A-weighted)
All Direct Inputs	98dB
Analog-DSP Inputs	93dB
Digital Inputs	100dB

FM Tuner Section

Sensitivity
IHF	10dBµ typ.
50dB S/N	13dBµ typ.
S/N Ratio
Mono	72dB typ.
Stereo	60dB typ.
Distortion
Mono	0.3% typ.
Stereo	0.5% typ.
Stereo Separation	40dB typ.
Adjacent Channel Selectivity	50dB ± 400kHz
Frequency Response	20 Hz to 15 kHz ± 1dB

AM Tuner Section

Sensitivity (20dB S/N)	400uV
S/N	50dB
Distortion	0.7%
One Signal Selectivity (± 10kHz)	35 dB

Video Section

Bandwidth
Composite & s-video	........................ 6 MHz -3dB
Component Green	100MHz -3dB
Component Red	100MHz -3dB
Component Blue	100MHz -3dB

All video inputs and outputs are 75 ohms, 1.5 Vp-p. Component inputs and outputs work with any Standard requiring ultra-wide bandwidth including Component-RGB, HDTV, line doublers, quadruplers, and scalers.

General

Supply Voltage	105-130V, 60Hz only
Power Consumption	45W
Fuse Rating	1.0A slow-blow 5x20 mm,
	2.0A slow-blow 5x20mm
Dimensions
Width	17 inches / 431.8 mm
Height	5.75 inches / 146 mm
Depth	16 inches / 406.4 mm
Weight	28 lbs. / 12.7 kg
Trigger Outputs 1, 2 (Zone)	Sequential Delay
	50 mA @ 12 VDC

Specifications are subject to change without notice.

ADCOM GTP-880 Owner’s Manual 51