Members prosigna Posted January 30, 2010 Members Share Posted January 30, 2010 I added a PV-1500 poweramp to the Youth Band rig at church. I am not always the one to hook things up and when teenagers are involved things sometimes do not go as planned. Last week something was not right, the cooling fan on the PV-1500 was running constant and the amp was flashing its clip lights way too early. I was playing bass and did not have much time to look into the problem while we were playing. This week I walked in, forgot about the problem, and it started doing it again. After about 20-minutes I said "Something is wrong". I looked at the amp and figured it was overheating but was not sure why. I looked across the stage and saw the sub speaker cable (driving two SP-118s) was plugged into the SP-2G main instead of the sub - right along with the main speaker cable - IN PARALLEL - CHANNEL A & B of the the PV-1500 driving the SP-2G. It had run this way for at least an couple of hours of playing time. Everything still worked fine although the cooling fan was losing its mind. I could not believe it was fairly stable into that kind of load. I would not recommend this as a stress test for any end user but I must say I was impressed with the amp. Link to comment Share on other sites More sharing options...
Members samkokajko Posted January 30, 2010 Members Share Posted January 30, 2010 Believe it or not we had a professional install company do that with a poor xti1000 into a pair of vrx tops between the highs and mids. Needless to say we will not use them ever again Link to comment Share on other sites More sharing options...
Members prosigna Posted January 30, 2010 Author Members Share Posted January 30, 2010 I saw a crown rep once hook up a speaker to a Macro-Tech amp, run music to a speaker, then short out the + and - poles. The speak continued to produce music (at a reduced level) but the amp kept running with a dead short. I did not expect that level of stability out of a PV line amp. Granted, it was not a dead short but still, impressive. Link to comment Share on other sites More sharing options...
Members SoundMan Posted January 30, 2010 Members Share Posted January 30, 2010 That's not really a big deal, we do that all the time. We short them to test the thermal protection usually. It's even part of the burn-in process in production. Link to comment Share on other sites More sharing options...
Members Coaster Posted January 30, 2010 Members Share Posted January 30, 2010 That's not really a big deal, we do that all the time. We short them to test the thermal protection usually. It's even part of the burn-in process in production. do you think a behringer, phonic and similar could put up with that? i wonder if they are built well enough. Link to comment Share on other sites More sharing options...
Members heath_eld Posted January 30, 2010 Members Share Posted January 30, 2010 im confused.... what exactly did you do? Plug both channels into the same speaker? Link to comment Share on other sites More sharing options...
Members Bugzie Posted January 30, 2010 Members Share Posted January 30, 2010 I'm reading it as he had one side of the amp into the speaker and the other into the "pass thru" connection. Link to comment Share on other sites More sharing options...
Members prosigna Posted January 30, 2010 Author Members Share Posted January 30, 2010 im confused.... what exactly did you do? Plug both channels into the same speaker? Exactly. Both channels into the same speaker. Link to comment Share on other sites More sharing options...
Members Unalaska Posted January 30, 2010 Members Share Posted January 30, 2010 Wow, I wouldn't do this with any other amp manufacturer! Peavey makes some well built stuff (please oh please let the IPRs be good and not another deca). Last year some "DJ" bridged his Carvin 2000 into a pair of my dual 18's. The amp ran very hot all night and he put a fan on it after it thermaled the 1st few times. oh well... Link to comment Share on other sites More sharing options...
Members agedhorse Posted January 31, 2010 Members Share Posted January 31, 2010 Our amps are also expected to survive a short circuit test like that. Note that these tests are not foolproof, but give a good indication of the survivability ofthe amp into adverse loads. Link to comment Share on other sites More sharing options...
Members Unalaska Posted January 31, 2010 Members Share Posted January 31, 2010 I can remember dead shorting an EV 660 (now called the Eliminator Amp) and a P3000 with lamp cord just to prove how good it was at testing. Every 3 sec the relays would re-engage and check for a dead short then dis-engage again. Link to comment Share on other sites More sharing options...
Members srp72ee Posted January 31, 2010 Members Share Posted January 31, 2010 Wow, I wouldn't do this with any other amp manufacturer! Peavey makes some well built stuff (please oh please let the IPRs be good and not another deca).Last year some "DJ" bridged his Carvin 2000 into a pair of my dual 18's. The amp ran very hot all night and he put a fan on it after it thermaled the 1st few times. oh well... My DECA 424 died back in November. I think I bought it back in 1987? Link to comment Share on other sites More sharing options...
Members Unalaska Posted January 31, 2010 Members Share Posted January 31, 2010 Deca's are hit and miss. If they didn't blow up in a spectacular way they'd run for a long time. I don't see many used decas out there, and trying to repair one is futile. Link to comment Share on other sites More sharing options...
Members srp72ee Posted February 1, 2010 Members Share Posted February 1, 2010 I had a lot of miles on mine. Link to comment Share on other sites More sharing options...
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