Operation Manual

5. Operation and performance

C SERIES Operation Manual rev 2.0.0

5.6.8. Level indicators

Each channel pair of the C...X amplier has an indicator window with ve LEDs per channel plus a bridge indicator.

• Orange CPL (Current Peak Limiter) ashing indicates signal exceeds the limits of the output devices and limiting

is in effect.

• Red VPL/CLIP indicates that the signal has exceeded maximum output voltage (Maximum voltage is

determined by rear-panel VPL settings).

• Signal / Hi-Imp (Green/Red) indicates an output signal above -44 dB. If it turns Red, this indicates that a high

impedance (“open” connection) has been detected at the output. This can be a fault such as a disconnected

cable or malfunctioning driver. However, it could indicate acceptable high impedance, such as a sub-bass

enclosure with high impedance at a certain frequency.

For more detailed signal level indications use the DeviceControl software application.

5.6.9. Level adjust

Level adjust potentiometers (one per channel) are located behind the removable dust-lter cover on the amplier’s

front-panel. It is not possible to adjust the level settings with the cover in place.

Step Attenuation Step Attenuation

1 (Min) -Inf. dB 12 -8.7 dB

2 -Inf. dB 13 -7.4 dB

3 -50 dB 14 -6.0 dB

4 -40 dB 15 -4.5 dB

5 -35 dB 16 -2.7 dB

6 -21.5 dB 17 -0.6 dB

7 -21.5 dB 18 -0.3 dB

8 -14.7 dB 19 -0.1 dB

9 -12 .9 dB 20 0 dB

10 -11.4 dB 21 (Max) 0 dB

11 -10.0 dB

Figure 5.6.8: Front panel LED indicators