Jazzjames Posted November 20, 2016 Share Posted November 20, 2016 Hi everyone, How warm shound an all tube preamp get during the course of a gig? I finished a gig this evening and I noticed my new setup was a little warm. Not hot, but for sure warm around the front where the control face is, and on the sides, where I can touch it through the big holes in the side of the case. The power amp was also very slightly warm but not like the ampeg. I've been using class D heads for a long time and my Aguilar doesn't get warm like this, so I just want to check I'm not cooking the gear! James Quote Link to comment Share on other sites More sharing options...
Bigwan Posted November 21, 2016 Share Posted November 21, 2016 Valves need to be warm to operate. Each valve has a heating element inside. Nothing to worry about. You should feel how warm a good old plexi gets after a few hours! Would be more worried about the power amp getting hot. Quote Link to comment Share on other sites More sharing options...
Dood Posted November 22, 2016 Share Posted November 22, 2016 Yes to the above but you will want to still make sure your rack case is allowing enough air circulation via vents too. Quote Link to comment Share on other sites More sharing options...
HazBeen Posted November 22, 2016 Share Posted November 22, 2016 The SVP has several valves which in essence are light bulbs and will generate heat. Yes to the gents above, personally I would give the SVP room above and below. You may get away with mounting an external fan that directs air to the pre. Quote Link to comment Share on other sites More sharing options...
Jazzjames Posted November 23, 2016 Author Share Posted November 23, 2016 Thanks guys. I'm going to monitor it on this weekend's gigs and if it gets more than warm at any stage, I'm going to drill some holes in the top of the case above the vents to let the air straight out. There's room all around the preamp but it's relatively tight. Quote Link to comment Share on other sites More sharing options...
krispn Posted November 23, 2016 Share Posted November 23, 2016 Yup mine does the exact same - I bought a little fan from amazon: https://www.amazon.co.uk/RAM-150mm-6-inch-Clip--Transformer/dp/B00KCL33GA/ref=sr_1_10?ie=UTF8&qid=1479926824&sr=8-10&keywords=ram+air+fan I point it into the rear of the rack case to provide good air circulation - p[lus this way its at the back and doesnt make the rig untidy to look at. Well worth the money! Quote Link to comment Share on other sites More sharing options...
Jazzjames Posted December 3, 2016 Author Share Posted December 3, 2016 Thanks for the advice everyone. I've played a few gigs with this setup now, it doesn't get above warm, so I'm gonna leave it as it is. Perhaps in the summer I'll get a fan to get the air moving, but right now it gets up to a warm temperature and then stays there. And it sounds mega. So much strength to the sound. Quote Link to comment Share on other sites More sharing options...
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