Adcom GTP-740 - Page 55

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TECHNICAL SPECIFICATION GTP-740
5. Signal to noise ratio (B, 6 for output) CCIR/ARM dB ≥65
100mV and play A27 config 1 and 2.) 200Hz Notch
(FL, FR, C, SL, SR) and 400Hz HPF.
PAUSE Audio LPF dB ≥70
A-Wtd dB ≥70
6. Channel separation A, 31 (997Hz) dB ≥75
(insert 20KHz L.P.F.)
7. Set config 2 at 1Vrms output (sub) A71 (30Hz) dB +10.5±1.0
as ref. and measure FL/FR output
center and rear delay set to 0ms
GENERAL AUDIO SPECIFICATION - 3
DVD (DOLBY 1.0)
Input source: Digital input
Specification Details T
rack Unit Limit
1. Output level (Vol max.) 30 Vrms 1.29±0.2
(FL, FR, C, SL, SR) at config 1
2. Channel difference, FL set ref. 30 dB ±1.2
(FL, FR, C, SL, SR) at config 1
3. Frequency response (set 30) SL. 46 (200-20KHz) dB ±0.8
at config 0 (set 30) SR. 47 (200-20KHz) dB ±0.8
(set 30) C. 44 (200-20KHz) dB ±0.8
at config 0 (set 30Hz) LFE.48 (20-80) dB ±4.0
4. Harmonic distortion at 0.2Vrms SL. 30 (997Hz) % ≤0.08
(insert Audio LPF) at config 1. SR. 30 (997Hz) % ≤0.08
C. 30 (997Hz) % ≤0.08
at 2Vrms LFE.70 (30Hz) % ≤0.03
5. Signal to noise ratio (31 for output) CCIR/ARM dB ≥65
100mV and play 63 config 1 and 2.) 200Hz Notch
(FL, FR, C, SL, SR) and 400Hz HPF.
PAUSE Audio LPF dB ≥70
A-Wtd dB ≥70
6. Channel separation 65 (997Hz) dB ≥75
(insert 20KHz L.P.F.)
7. Set config 2 at 1Vrms output (sub) 70 (30Hz) dB +10.5±1.0
as ref. and measure FL/FR output
center and rear delay set to 0ms
GENERAL AUDIO SPECIFICATION - 4
Surround mode: 2 channels (FL & FR channels)
Input source: Analog input (audio analyser)
Input level: 2.0V unless specified.
Specification Details Freq.
Unit Limit
1. THD
w/ 20kHz LPF, output=2Vrms 1kHz % ≤0.08
2. S/N ratio
A-wtd w/1K termination, output=2Vrms 1kHz db ≥70
3. Sensitivity
input level=400mV, max vol. 1kHz V 2.25±0.2
4. Channel separation
80kHz LPF w/ 1K termination 1kHz dB ≥60
output=2Vrms 10kHz dB ≥40