DAPAudio Stageamp 2.2, User Manual

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8
Operation Mode
(#3 and #4)
Soft-clipping
(#1 and #2)
22. Operation mode selector (Dipswitch #3 and #4)
The switch has three exchange modes:
1) Stereo mode :
In this mode both channels operate independently of each other, with their input attenuates
controlling their respective levels. A signal at Channel 1’s input produces an amplified signal at
Channel 1’s output, while a signal at Channel 2’s input produces an amplified signal at Channel 2’s
Output.
2) Parallel mode :
In this mode, both signals from Ch1 and Ch2 input are summed and sent to both Ch1 and Ch2
outputs. This results in an summed monaural output signal on both outputs. The input attenuators
will independently adjust their corresponding output signal levels. This mode might be useful in
certain subwoofer set-ups to reduce phase problems.
3) Bridge mode :
Both amplifier channels can be bridged together to make a very powerful single channel amplifier.
When the Mode switch is set to the “Bridge” position, 1 channel “pushes”, while the other “pulls”
equally. Thus effectively doubling the power. Use extreme caution when operating the amplifier in
the bridged mode. To bridge the amplifier, set the mode switch to the “Bridge” position. Apply the
signal to Channel A’s input and connect the speakers across the “hot” outputs – the red binding
posts – of Channel 1 and 2. Channel 1’s “hot” output is in phase with the input.
For operation adjust only the Channel 1’s input attenuator, while Channel 2’s input will not function
(Channel 2’s input signal has been disconnected).
23. Soft clip selector (Dipswitch #1 and #2)
1) Set the dipswitch #1 and #2 to ON and the limiter will smoothly limit the wave form.
2) Set the dipswitch #1 and #2 to OFF and soft-clipping will be disabled.
24. CH2 bypass socket
Ch2 bypass socket is in parallel connection with XLR, provide an output signal same with the inputs.
25. CH2 XLR input
This XLR input is a balanced input, connect to the upper processing equipments.
26. CH2 Binding post output
In stereo or parallel mode, connect the negative wire of your speaker to the black binding post
and the positive wire of your speaker to the red binding post.
In bridge mode, only connect the
speaker wires to the red binding post of Channel 1 and Channel 2.
27. CH2 SPEAKON output
In stereo or parallel mode, connect the negative wire of your speaker to the -1 pin and connect
the positive wire of your speaker to the +1 pin of the speakon connector.
In bridge mode, the
Ch2 Speakon connector cannot be used. See “Ch1 Speakon output” for connection in bridge mode.