SLP Series Amplifiers
Owners Manual
4
Indicates the master power switch on the front panel is in the ON position.
6. Rotary Gain Controls
Independent gain control for each Channel A and Channel B. Controls are high quality 42 position detent
controls that allow independent level adjustment of each channel.
7. Master POWER Switch
Rocker style switch provides ON/OFF control of the amplifier.
REAR PANEL
1. Balanced Line Level Input
Independent Channel A and Channel B female XLR connectors accept line level input from mixing console
or similar audio source. This input is designed to accept signal from prosound equipment, typ4dBv.
2. Feedthrough Balanced Output
Independent Channel A and Channel B male XLR connections are tied directly to the female input
connections, and are intended to provide feedthrough to a second amplifier. The signal level at this
connection will match exactly that of the XLR input.
3. Unbalanced Line Level Input
Independent Channel A and Channel B female RCA style connectors accept unbalanced line level inputs
from standard consumer type audio sources. This includes CD and DVD players, tape decks, computer
sound cards, MP3 players, REC outputs on stereo receivers and similar. This input accepts standard line
level signals, typically –10dBv.
4. Limiter ON/OFF
This selector engages the limiter function of the amplifier. While engaged, the limiter will automatically
decrease amplifier gain, when needed, to prevent the amplifier from clipping. This is useful as it will
prevent amplifier and speaker damage, as well as prevent sound distorting effects of a clipping amplifier.
The disadvantage of engaging this function is that it can reduce overall dynamic range, especially at high
volume levels.
5. Ground Lift
This selector disengages the input shield connections (outer shield on RCA inputs or Pin-1 on the XLR
inputs) from the chassis and earth ground. This is often necessary to eliminate ground loops that exist
between multiple components that are independently grounded. These ground loops manifest themselves
as noise, buzzing or 60Hz hum when present. Two position slide switch in left position, ground engaged.
In the right position, ground is disengaged or "lifted".
6. Stereo / Bridged Selector
This two position selector selects between stereo or bridged mono modes of the amplifier. In the left
position, the two amplifier channels function independently allowing stereo operation. With this selector in
the RIGHT position, the amplifier channels are BRIDGED, effectively adding the two channels together, to
create one channel with twice the power output. This is especially common when the amplifier is used to
power a single, large subwoofer.
NOTE:
it is critical that correct speaker connections are utilized in this
mode. See the following details for information regarding this.
7. Power Input
This standard IEC type power connection accepts 117VAC, 60Hz supply voltage only. This amplifier is not
suitable for use in countries utilizing different mains voltage.
