Nominal Attenuation Settings - Crown CTs 1200 Operation Manual

CTs 2-Channel Power Amplifiers
5 Advanced Features
and Options

5.3.1 Nominal Attenuation Settings

The signal level for each input can be attenuated accurately by
adjusting the 21-step Level Control (see Section 4.3). Figure 5.5
shows the attenuation in dB for each detent. The setting of the
input-sensitivity switch varies the actual attenation as shown.
The accuracy of the attenuation varies with the setting. Expected
tolerances are:
Potentiometer steps 0-6 dB: ± 1 dB
Potentiometer steps 6-12 dB: ± 1.5 dB
Potentiometer steps 12-24 dB: ± 3 dB
Potentiometer steps 24-54 dB: ± 6 dB
Operation Manual
Detent 26 dB
0 (full CW) 0.0
1 0.5
2 1.0
3 2.0
4 3.0
5 4.0
6 5.0
7 6.0
8 7.0
9 8.0
10 9.0
11 10.5
12 12.0
13 13.5
14 15.0
15 18.0
16 21.0
17 24.0
18 36.0
19 48.0
20 (full CCW) OFF
Figure 5.5 Attenuation vs. Detent of Level Controls for CTs 2-Channel Amplifiers
4/8 ohm or 70/100V
0.0
0.5
1.5
3.5
5.0
6.5
8.0
9.5
11.0
13.0
14.5
16.0
18.0
20.0
22.0
24.0
26.0
30.0
42.0
54.0
OFF
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