Yamaha A-S2100 Owner's Manual page 26

Specifications
■ Tone control characteristics
14
12
10
8
6
4
2
0
–2
–4
–6
–8
–10
–12
–14
10 20 30 50
■ Total harmonic distortion
1
0.5
0.3
0.2
0.1
0.05
0.03
0.02
0.01
0.005
0.003
0.002
0.001
1 2
26
En
100 200 300 500
Frequency (Hz)
3 4 5 6 8 10
Measured (W)
1k 2k 3k 5k 10k
20kHz
20Hz
1kHz
20 30 40
20k 30k 50k 100k
50 60 80 100