11
TEST PROCEDURE
Frequency Response Table
Frequency Below 40
Switch
Treble
Decrease
Switch
Treble
Contour
Response
dB
901 I
Response
dB
901 II
Tolerance
dB
20 Hz OFF OFF normal (dot) 14.8 dB 19 dB ±3 dB
20 Hz O N OFF normal (dot) 9 dB 9.5 dB ±3 dB
60 Hz OFF OFF normal (dot) 9.2 dB 9.4 dB ±3 dB
60 Hz ON OFF normal (dot) 8 dB 7.8 dB ±3 dB
1 kHz OFF OFF normal (dot) .2 dB .1 dB ±3 dB
5 kHz OFF OFF normal (dot) 2.2 dB 4 dB ±3 dB
12 kHz OFF OFF normal (dot) 9 dB 12.3 dB ±3 dB
12 kHz OFF O N normal (dot) 6.9 dB 8.1 dB ±3 dB
12 kHz OFF OFF number 1 2.7 dB 7 dB ±3 dB
12 kHz OFF OFF number 2 3.2 dB 7.8 dB ±3 dB
12 kHz OFF OFF number 3 7.3 dB --- ±3 dB
12 kHz OFF OFF number 4 --- 15.6 dB ±3 dB
12 kHz OFF OFF number 5 12.4 dB 18.5 dB ±3 dB
20 kHz OFF OFF normal (dot) 12.9 dB 13.8 dB ±3 dB
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