ajzwart Posted January 28, 2011 Share Posted January 28, 2011 Hey guys, so a few weeks ago I was messing around with my two bass amps. A swr working pro 12(200 watt), and an acoustic b100 (100 watt). Well, in my never-ending search for more power, I messed around, attempting to hook these two amps up. My result was, running a guitar cable from the effects send on the swr, to the input jack on the acoustic amp. Boom! Huge sound/volume increase on the acoustic, and I don't believe I can notice a power increase on the swr (which makes sense). The controls still work on both the heads. My question is, is this going to be bad for the heads on the amps? I know I need to be careful with the 15 inch speaker on the acoustic, but I'm worried about somehow damaging the heads at all. Whatcha think?? Anyone ever done this before? Link to comment Share on other sites More sharing options...
strat-o-steve Posted January 29, 2011 Share Posted January 29, 2011 Yea, better stop doing that. Sooner or later, something will give, and then you will be on a different search, a search for something to put out a fire! LOL Link to comment Share on other sites More sharing options...
brianh Posted January 29, 2011 Share Posted January 29, 2011 I'm not convinced that it will hurt anything. The effects send of your SWR is high-impedance, and the input on the Acoustic is also high impedance. They may have different impedance ratings, but still in the same ballpark. I'd say that if you don't hear any distortion on the Acoustic you're fine. Link to comment Share on other sites More sharing options...
crust Posted January 29, 2011 Share Posted January 29, 2011 If I understand you, you seem to be using one amp as a pre-amp to overdrive the second amp ? Maybe I'm wrong. I just wouldn't turn either amp up to loud if that is whats what are doing. Link to comment Share on other sites More sharing options...
brianh Posted January 29, 2011 Share Posted January 29, 2011 But an effects send is either a fixed level output or variable within a limited range, say -20 to +4 dB. So the SWR should be fine at any volume, and the Acoustic just needs to be set at a level that doesn't produce audible distorion. I don't think it'll hurt anything, but the owner's manuals should have the input and output specs listed if you really want to be sure. http://www.swrsound.com/support/manuals/ http://www.crateamps.com/support/discontinued.php Link to comment Share on other sites More sharing options...
amx05462 Posted January 29, 2011 Share Posted January 29, 2011 i ocasionally run two amps an ac 30 and a fender twin reverb. i spit the output from the guitar itself to the two amps. in that way i dont have to worry about blowing up either amp. much like i did my ad 120 vt. i learned my lesson the hard way. Link to comment Share on other sites More sharing options...
ajzwart Posted January 29, 2011 Author Share Posted January 29, 2011 I was just going to ask that! Can you buy 1/4 inch splitters?? Link to comment Share on other sites More sharing options...
brianh Posted January 29, 2011 Share Posted January 29, 2011 This high-quality passive splitter is isolated so the two amps aren't sharing a ground which can result in hum: http://guitars.musiciansfriend.com/product/Lehle-PSplit-Splitter-Guitar-Pedal?sku=150527 A Y cord will change the output impedance and offers no such buffering, but it can also work. Link to comment Share on other sites More sharing options...
sledge57 Posted January 30, 2011 Share Posted January 30, 2011 I use 2 amps sometimes but I use a stereo pedal when I do, it has one input and 2 outputs. The one I use most is my stereo delay pedal but there other pedals with stereo outs... Link to comment Share on other sites More sharing options...
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