Studer A1 - A3: Woofer Amplifier Output

A Series Active Monitor Speakers
Date printed: 29.02.00 Service E4/17
4.4.1.8 A3: Woofer Amplifier Output
• Connect only the RLw dummy load (10 Ω)
Steps Generator Measurement
No. Description Id Value Test pos. Type Value Limits
1 Woofer output level G1 –13.6 dBV/500 Hz/sine wave Mw Level +3.5 dBV ±0.25 dB
2 Woofer output THD G1 –13.6 dBV/500 Hz/sine wave Mw THD + N < 0.1 % < 0.1 %
Woofer output
Anlr.Level A
Anlr.THD+N Ratio
20
20 k
50 100 200 500 1 k 2 k 5 k 10 k
[Hz]
0.01
0.02
0.05
0.1
0.2
0.5
1
2
5
10
20
50
100
[%]
20
10
0
–80
–70
–60
–50
–40
–30
–20
–10
[dBV]