Pat Farrell;232214 Wrote: > So you really pushing 30 amps down your speaker wires? :-) > Of course, I can't talk much, I've got some Cardas that are probably > also 10 gauge. Came "bundled" with my amp and speakers. > > Lets see, 30 amps at 4 ohms.... 30*30*4 = 3600 watts. It's not the current, it's the resistance. One doesn't use large speaker wire because they are worried about overheating the wire due to total current. Rather one uses large wire so that it's total resistance is very low compared to the resistance of the wire in the speaker voice coil. One can get the same effective resistance with a shorter run of smaller wire. The best of both worlds is a short run of large wire.
30A through 10 AWG copper wire is based on not overheating in a 60C power raceway. Most likely the speaker voice coils would catch fire or, as usually happens, just burn through at a weak spot like a fuse element, well before 10 AWG, or even 18 AWG wire connecting them to the amp would overheat. I have heard some funny stories about so-called "Flame Linear" (Phase Linear brand) amps or the speakers they were attached to going up in flames after the transistors went into thermal runaway. Never saw it personnally; the wosrt that ever happened to the Phase Linears in my PA rig back in the day was that they overheated and blew the fuses. :) -- Timothy Stockman ------------------------------------------------------------------------ Timothy Stockman's Profile: http://forums.slimdevices.com/member.php?userid=8867 View this thread: http://forums.slimdevices.com/showthread.php?t=38902 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
