rayjay@ihuxr.UUCP (john wray) (10/12/83)
Here's a bone for all you "audio rats out there to knaw on........ I recently got into a rather heavy discussion with a friend about how long a time is necessary to allow your audio gear to warmup to expect the best results from same. He had read an article in AUDIO AMATEUR (sp?) that it was necessary to warmup a Hafler DH-101 for at least 24 hours to get the best results. Another friend of mine leaves his system on all weekend ( that's when he does most of his listening). Some "tube freaks" I know let their units burn 24 hours a day all the time. How about it? Any comments?
softech@micomvax.UUCP (10/13/83)
I leave my preamp (Thaedra Servo-loop Class A) and amp (Bryston 3B) on 24-hours a day, 7 days a week. Analogic circuitry is in a stable state when temperatures have reached their operating levels. In the case of my preamp, this is around 50 degrees celsius (yes, class A runs hot). From a cold start, it takes about one hour to reach this temperature, and the sound isn't really there until then, so I leave it on. The idle wattage of both components is about 120 watts, so the electricity bill isn't affected very much. I also read on numerous occasions that temperature gradients (going from hot to cold to hot) are the single most important cause of equipment aging and gradual loss of performance. Richard Blouin, ...!philabs!micomvax!softech
rtf@ihuxw.UUCP (10/17/83)
I have a question for those people who prefer to leave their amps and preamps powered up all the time. I should make it clear that I agree with you, I was told by a friend who majored in EE technology that solid state components are happier when warm and dislike being powered up and down. My question is: Have you ever had any adverse reaction or damage to voltage spikes which are very inherent in consumer power lines? If not, how can this be avoided? I do not keep my system powered up at all times for fear of this. sparrow