My neighbours next door have workmen in and doing "serious structural alterations". The noise level from them is high and I have taken this chance to crank uip my 100W RMS/channel amp, with my meter across my 8 ohm speakers to see what gives. I have also placed a digital thermometer probe 'tween the amp and equaliser to check the air temp. It just cut out with an air temp of 55C (the amp), I'll get a fan and crank it back up. No kidding, as I was typing my amp clicked out (a thermal trip I believe) and I've been listening pretty damn loud for an hour or two. I was running at a reading of around 8V RMS average across an 8ohm load (which is 8 watts) though transients were rather higher. About 12V which would be roughly 18 Watts. I couldn't believe it, it cut out for about ten seconds as I wrote the above, but I have brought a powerful fan in to blow air above and under the amp. Whilst I can't say what the temperature is inside the unit, the outside temperature just above is only four or five degC above room temp, rather than some 30degC. Sorry that cut out distracted me, and caught me by suprise despite my steadily cranking up the volume levels. My amp is running at the same level as before and the air temp above is 31C and falling, rather than 55C. It also gives a serious blast underneath as it is a 10-12inch box-fan close in front of the amp. Anyway, I was wondering if connecting a (digital) meter in AC volts mode gives a usable guide to average audio levels across a speaker? Either way, running that fan for just 15mins seems to have cooled my amp to near room temp *whilst playing at high volume still*. I think I'll keep it there if a deafening session need arises again (ie. the workmen return again). It's rated at 100W RMS/channel but can never achieve it due to cutting out. Oh bugger, the workmen next door are back-- now I'll see if the fan can really cool my amps' circuitry. "Prepare to engage at Warp 9.8, let's hope Geordi LaForge's plasma cooling system holds". They haven't started banging on the wall *too* hard yet, but I'm pretty sure they will :-) And those of you out there who think I'm a sad sci-fi freak, I would say, errm, well so what if I am? Cheers, PrinceGaz -> sad sci-fi freak. ----------------------------------------------------------------- To stop getting this list send a message containing just the word "unsubscribe" to [EMAIL PROTECTED]
