paulmcnamara Posted November 23, 2014 Share Posted November 23, 2014 I have the above amp driving 2 SL 112 cabs; my question: is it ok whilst using the normal input for bass guitar to also use the return socket for a bass synth? Volume on the return socket seems much lower than the regular input. Your thoughts would be welcome, thanks, Paul. Quote Link to comment Share on other sites More sharing options...
molan Posted November 23, 2014 Share Posted November 23, 2014 Are you using both instruments simultaneously? Quote Link to comment Share on other sites More sharing options...
paulmcnamara Posted November 23, 2014 Author Share Posted November 23, 2014 Most of the time no, but occasionally yes. Quote Link to comment Share on other sites More sharing options...
Dood Posted November 24, 2014 Share Posted November 24, 2014 I might be wrong for the TH, but amplifiers with a serial effects loop will actually disconnect anything plugged in to the input if you place a new signal lead in to the effects return. It breaks the signal chain from the preamplifier section. Think of it lke this: Input>Preamplifier and EQ controls>Effects loop send Effects loop return>Power amplifier>Speaker. The reason the signal sounds quieter when you inject in to the effects loop is that they are generally level set for 'line level' and there is no gain or input level control to boost that signal up. The input of the amplifier is designed to accept signals that are much much quieter 'instrument level' as it is often called. You are safe to send a signal in to the effects return but as you have spotted, you may need to boost it up a little. Of course all of this will need editing if the TH has a parallel loop which I don't think it does! Quote Link to comment Share on other sites More sharing options...
paulmcnamara Posted November 25, 2014 Author Share Posted November 25, 2014 Thanks Dood, I need to experiment! Paul. Quote Link to comment Share on other sites More sharing options...
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