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How hot are they ?

I currently operate an EL34 tube integrated amp with two power tubes per channel . I find the heat output acceptable .
I would like to investigate the world of SET integrated amps
and would like to know about the heat output of the various SET DHT tubes as compared to my present set up . In question are 300b , 211 & 845 tubes . I am guessing that there would only be one power tube per channel with this style of amp .
Can anyone speak to this situation ?

Thank You
saki70
almarg's avatar
almarg
9,670 posts
 
For a SET or other amplifier operating in Class A the amount of heat generated will closely correspond to the AC power consumption of the amp.

For example the Cary CAD 300SEI is a stereo integrated amplifier employing one 300B per channel, and a total of three 6SN7 small signal tubes. It is specified as consuming 107 watts of AC power. So the heat generated will be similar to the heat generated by a 100 watt incandescent light bulb. 211 and 845 integrated amps, of course, will generate significantly more.

If the manufacturer's literature on a particular amp does not indicate AC power consumption, an email to them would hopefully provide an answer.

Regards,
-- Al
saki70 OP
907 posts
 
Excellent info...thanks Trelja & Al . Especially like the AC consumption thing !
ebm
9,311 posts
 
SO hot i cook eggs on mine!!
goldprintaudio's avatar
goldprintaudio
502 posts
 
As Al mentioned above, the Cary CAD300SEI is great SET 300b integrated option, and I do not find it's heat output to really be any more/less then a typical tube based integrated.

****Cary dealer disclaimer***
saki70 OP
907 posts
 
Hope springs eternal Almarg ! I have emailed a retailer , for Melody products , as well as the manufacturer for Decware and received nothing in the past 3 days ! Must be a well kept design secret !?
Oh well .

Thanks for all of everybody's help .
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