Alto SR500SA - Page 4

Test Result
Model No：SR500SA Test Date: 20041004 Tester： mo guo zhu
Test Item 1. Input
Sensitivity
2. Signal/Noise 3. Distortion at
1W
4. Distortion at
Rated
5. Frequency
Response
Test Conditions
Test Result
FLAT Rated
Output 40V
Load4Ω
FLAT Rated
Output 40V
Load 4Ω
FLAT Output
at 2V Load 4Ω
FLAT Rated
Output 40V
Load 4Ω
FLAT Output at
2V Load 4Ω
Low OUT 3.5±0.3 dBV 70 ↑ dB 0.3↓ % 1.2↓ %
Hi OUT dBV dB % %
TUNER dB dB % %
LINE
CD dB dB % %
AUX dB dB % %
TAPE dB dB % %
TUNER dB dB % %
AUX2
CD dB dB % %
AUX dB dB % %
TAPE dB dB % %
TUNER dB dB % %
AUX3
CD dB dB % %
MIC dB dB % %
LINE dB dB % %
24V dB dB % %
MIC1
UNBAL dB dB % %
MIC dB dB % %
LINE dB dB % %
24V dB dB % %
MIC-2
UNBAL dB dB % %
MIC dB dB % %
LINE dB dB % %
24V dB dB % %
MIC-3
UNBAL dB dB % %
MIC dB dB % %
LINE dB dB % %
24V dB dB % %
MIC-4
UNBAL dB dB % %
Remark
1. Test is done with instrument ATS-2.
2. Load connection: connect LOW output with 4Ohm load.
3. Short circuit DSP terminals.
4. Frequency response test: After function test is done, scan with test instrument AUDIO PRECISION the
Authorization by： Check by：
01-2
frequency response for the unit. refer to the attached figure.