Warming up |
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Meat
Old Croc Joined: 05 June 2009 Location: Manc Status: Offline Points: 1514 |
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Posted: 08 October 2012 at 6:43pm |
Some time ago various people posted about how running their (heavy) amplifiers for some time gave a better sound. Now that large numbers of us have fancy switchmodes has anyone noticed a similar effect with these amps and their lower thermal inertia?
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Don't test the champignon sound
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4947 |
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imho if a solid state amp needs to warm up before it sounds its best, its faulty
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Kevin
North Staffordshire |
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darkmatter
Old Croc Joined: 26 February 2005 Location: LDN Status: Offline Points: 2425 |
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I've heard of hifi aficionados saying they never turn their toroidals off for this reason, mini radiators and nothing more in my (to be fair unqualified) opinion.
In my opinion if a circuit hasn't reached stability within the first minute of playing at reasonable load there's something inherently wrong with it.
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kedwardsleisure
Old Croc Joined: 20 January 2009 Location: Staffordshire Status: Offline Points: 4947 |
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It's possible for a faulty amp to exhibit this sort of thing. On older amps, worn out electrolytics can regain some performance when warm. Some amps may be running with too little bias and hence distortion that disappears when the amp is warm enough. Really an amp should perform perfectly straight out of the box
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Kevin
North Staffordshire |
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opus jody
Young Croc Joined: 06 June 2006 Location: United Kingdom Status: Offline Points: 1246 |
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All my amps must be faulty then!!
they definitely sound better after about an hour. in fact, in very cold (sub zero) start up conditions, they can sometimes sound so distorted that it sounds like all the cones are blown. It's only the fact that all cones do the same sound that tells you it's the amps. With a minimum of 15 mins on tickover before any serious volumes, there's never any problems. It behaves much like a diesel engine to be honest. a bit of warm up time goes a long way. You wouldn't expect a car to do 0-60 in 10 seconds on a cold engine. once they're up to temperature you can spank them really hard for days with no issues. |
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Improvised Hardware Music http://vimeo.com/user9389813/videos
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smoore
Young Croc Joined: 30 March 2011 Location: N.Devon Status: Offline Points: 937 |
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I have noticed this as well especially doing outdoor parties. Im guessing, like you say, its because of the cold...
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Dub Specialist
Old Croc Joined: 30 December 2011 Location: Smethwick Status: Offline Points: 3230 |
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you could put this in the conspiracy theories
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mrspeedy
Young Croc Joined: 23 July 2011 Location: Cambridge UK Status: Offline Points: 511 |
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To be honest, my diesel van performs alot better when cold actually...
Even runs better if the air is cool with low humidity (i.e winter)! Never noticed any distortion on my amps when outdoors in a marquee in sub 15deg temperatures. Edited by mrspeedy - 09 October 2012 at 12:34pm |
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GEB
Old Croc Joined: 13 November 2009 Location: East Midlands Status: Offline Points: 1993 |
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KY jelly is better once it's warmed up.......ooops, wrong forum!
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mooreb
Young Croc Joined: 02 July 2007 Location: London Status: Offline Points: 871 |
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My Range was like that, Turned out to be diesel injectors and oil rings, Be careful!!! |
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FB LS AUDIO SYSTEMS
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mooreb
Young Croc Joined: 02 July 2007 Location: London Status: Offline Points: 871 |
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I agree with the older amps, I turned some on the other day that I had not played for a while and waited for a while before sending any signal through them just so the caps could be nice and charged (kind of like warming up a car when you get in in i suppose!)
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FB LS AUDIO SYSTEMS
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mykey-
Old Croc Joined: 03 March 2010 Location: ID/UK Status: Offline Points: 6114 |
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