Filter
Top Products
65
Chapter 5 - Help
www.adcom.com
GTP-870HD Owner’s Manual
PREAMPLIFIER ANALOG SECTION
Input Impedance ........................................47k
Output Impedance (Main-RCA) ................<600 Ohm
Rated Input ........................................ 1.0Vrms
Maximum Input (@ 4Vrms Input Sens.) ........ 4.1Vrms
Rated Output (100k load) ........................ 2.0Vrms
Minimum Load ............................................ 5k
Maximum Output ................................... 8Vrms
Volume & Trim Range (relative to 0dB Trim)
• Main .................. -80dB to +18dB (0.5dB res)
• Main Trim .............-10dB to +10dB (1.0dB res)
• Main Input Sens./Input ..................1V/2V/4V
• Room 2 .................-65dB to +0dB (1.0dB res)
• Room 2 Trim ........... -8dB to +8db (1.0dB res)
• Room 2 Gain/Input ... +0dB to +6dB (2.0dB res)
Channel Separation (at 1kHz) ....................(>65dB)
Frequency Response
• Analog DSP Input ..... 20Hz to 20kHz +0/-0.2dB
• Analog Ext7.1 Input . 20Hz to 100kHz +0/-0.2dB
THD+N (@ Rated Input & Output)
• Analog DSP Input ......0.007% (20kHz Low Pass)
• Analog Ext7.1 Input ...0.006% (80kHz Low Pass)
S/N Ratio (ref. 2.0Vrms A-weighted)
• Analog - DSP Input ............................ 93dB
• Analog - Ext 7.1 Input ....................... 100dB
PREAMPLIFIER DIGITAL SECTION
Frequency Response
• Digital Input ............10Hz to 22kHz +0/-0.2dB
THD+N (@ Rated Input & Output)
• Digital Input ................. 0.009% (A-weighted)
S/N Ratio (ref. 2.0Vrms A-weighted)
• Digital Input .................................... 99dB
Bass Management (Front/Center/Surround/Sub)
• High-Pass Slope .............Crossover Frequency
• (Small Spkr Setting) .... 12dB/octave (2
nd
order)
(Adj. 40/60/80/100/120/150Hz)
• Low-Pass Slope (Sub) ...24dB/octave (4
th
order)
(Adj. 40/60/80/100/120/150Hz)
• Delay Mgmt (Feet or Meters relative 1ms/ft)
• Front/Center/Surr/Surr Back/Sub ........0-20 ft
• Lip Sync Delay ............................. 0-169mS
FM TUNER SECTION
Sensitivity
• 30dB S/N ................................. 6dBu typ.
S/N Ratio
• Mono ...................................... 65dB typ.
• Stereo ..................................... 55dB typ.
Distortion
• Mono .......................................0.3% typ.
• Stereo ......................................0.5% typ.
Stereo Separation ............................... 35dB typ.
Adjacent Channel Selectivity ................. 50dB typ.
Frequency Response ............ 50Hz to 15kHz +1/-3dB
VIDEO SECTION
Impedance (Input/Output) .......................75 Ohm
Bandwidth
• Composite & S-Video .................. 6MHz -3dB
• Component ........................... 200MHz -3dB
Transcoding
• Composite/S-Video/Component .... 480i & 576i
Switching
• HD Component (Auto Bypass) .......480p-1080p
• HDMI (Switching Video/Audio/
DDC/HPD) ...............................480i-1080p
GENERAL
Supply Voltage (Switchable) .............. 120vAC-60Hz/
230vAC-50Hz
Power Consumption ...................50watt maximum
Dimensions
• Width ......................... 17 inches (431.8mm)
• Rack Height .................. 7 inches (177.8mm)
• Full Height .................. 7.5 inches (190.5mm)
• Depth of Chassis ..........15.5 inches (393.7mm)
• Full Depth ...................19 inches (482.6mm)
Unit Weight ................................35 lbs. (15.9kg)
Trigger Outputs
• Main .................................50mA @ 12vDC
• Room 2 ..............................50mA @ 12vDC
IR Inputs
• Main ..................................... 3.5mm T/R
• Room 2 .................................. 3.5mm T/R
RS232 Control .........................9600 baud/8 - N-1/
Flow Control = Hardware
Technical Specifications
Specifications are subject to change
without notice.