User manual

9. Operation

After connection and veriﬁcation of the cables, you can take the power ampliﬁer into operation for the

ﬁrst time.

Only take the power ampliﬁer into operation after familiarising yourself with its functions and

these operating instructions. Check again that all connections are correct.

Make sure that the ampliﬁer and the connected devices are not overloaded. Playback must

never be distorted. If distorted music signals can be heard although the volume was not set too

high, switch o the system immediately and check the connection. If the connection is correct,

please contact a specialist.

• Turn the LEVEL (2) controller to minimum (left stop).

• Switch on your audio source (e.g. mixer) and the connected devices.

• Switch on the ampliﬁer with the POWER (1) mains switch (switch in “I” position).

• Set the audio source volume to approx. 75% of the maximum volume or the maximum undistorted level

(visible for devices with level indicator at the 0 dB mark).

• Now set the maximum required volume with the LEVEL (2) volume controls.

This setting achieves the highest possible signal-to-noise ratio and enables the best audio quali-

ty. Note that the maximum volume depends on the performance of the speakers and the ampliﬁer.

Playback must never be distorted. If the volume is too high, this may lead to damage to the spea

kers as well as the ampliﬁer.

• After completing this setting, the volume will only be controlled via the volume control at the audio sour

ce (mixer) anymore.

• To switch o the system, ﬁrst switch o the ampliﬁer with the POWER (1) mains switch and then the

audio sources.

The ampliﬁer for this equipment should always be the last to be turned on and the ﬁrst to be

turned o. This will prevent any undesired noises (which can typically occur when switching

o the device) from damaging the ampliﬁer or loudspeakers.