leftwinger57 Posted February 16, 2011 Share Posted February 16, 2011 HI Guys, I have an Adcom gfa555 200wpc w an Onkyo p-301 pre and a pair of Infinity sm112s for my 2-channel rig.When I turn on the amp or pre either one first I get no sound at all which is a good thing. The thing that bugs me is when I worked for a band in the 70s the bass player had an Alembic 6 string stereo powered by a Mcintosh2100 and a Furman pre like a twin. I was always worned never have volumes up while powering up or it would blow the speakers.So what's the difference now my Adcom is ss and so is the Mac. myH/T---Tosiba au37----Yamaha RX V-665---Denon 1949ci cdp---Klipsch set 500 w/8in pwrd sub LONGING for a set of FortesII once the cash comesin again. Quote Link to comment Share on other sites More sharing options...
russ69 Posted February 16, 2011 Share Posted February 16, 2011 Amp on first and off last. I'll assume you are talking about a turn-on/turn-off thump, right? Quote Link to comment Share on other sites More sharing options...
gnatnoop Posted February 16, 2011 Share Posted February 16, 2011 Amp on first and off last. I'll assume you are talking about a turn-on/turn-off thump, right? amp on last, off first is the way i do it..... Quote Link to comment Share on other sites More sharing options...
davis419b Posted February 16, 2011 Share Posted February 16, 2011 Amp on first and off last. I'll assume you are talking about a turn-on/turn-off thump, right? amp on last, off first is the way i do it..... I do mine just like gnatnoop. It is my understanding you never turn a tube amp on without the preamp on first. Quote Link to comment Share on other sites More sharing options...
russ69 Posted February 16, 2011 Share Posted February 16, 2011 Oh crap have I forgotten the right way? The real answer is that a well protected amp will disconnect the outputs until it's stable and a good pre will protect you from spikes. For the cheaper stuff that does give you bumps and thumps, you just don't want to amplify the thumps and bumps, so make sure your volume knob is turned down. I turn the amps off first and let them discharge. Who knows what the right way is? Quote Link to comment Share on other sites More sharing options...
gnatnoop Posted February 16, 2011 Share Posted February 16, 2011 i'm not sure it makes a $hit.. Quote Link to comment Share on other sites More sharing options...
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