Toasted Posted April 10, 2012 Share Posted April 10, 2012 On a QSC PLX amp if I only want to use one 4 ohm cab, do I have to use the Bridged Mono mode, or can I just use "one half" of it in stereo mode. Sorry in advance for the stupid question. Joe. Quote Link to comment Share on other sites More sharing options...
fretmeister Posted April 10, 2012 Share Posted April 10, 2012 Don't know that model - but on my old Yamaha P5000S I just used to use 1 side for smaller things. Just keep the vol on the unused side at nil. Quote Link to comment Share on other sites More sharing options...
Lfalex v1.1 Posted April 10, 2012 Share Posted April 10, 2012 No such thing as a stupid question! You can use either mode (as determined by the dip switches on the rear panel) BUT- To use it in bridged mode will require you to re-wire the Speakon plug at the amp end of your speaker cable. The manual [i]was[/i] available as a pdf from the QSC site. Check that out first, as it details what goes where. Do be aware that whilst most PLXs will go down to 2ohm in stereo, it's a 4ohm minimum in bridged mode. I use mine bridged, it's only a 1202, but gives so much more power and control than my Trace head. Do try out the lf roll-off filters (also on the dip-switch panel) I set mine to 30hz, and my cabinets complained less. Not to mention freeing up some extra power/headroom otherwise wasted on trying to make (most) cabs reproduce frequencies they simply can't. HTH.... Quote Link to comment Share on other sites More sharing options...
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