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Need Help! My Class A Amp Is Running Very Hot

Hi, currently I own a Luxman 590 Class A 30watts Integrated. After the unit running for more than half an hour if I put my hands on the top of the cabinet over or around the vents  it is burning hot , I even feel the heat on the sides of the cabinet, other than that the amp sounds good. Can anyone tell me if that’s normal or I should get it check out?
Thank you  in advance for your advice.
khmyjy
imhififan's avatar
imhififan
2,129 posts
 
IF it is an used unit, make sure it is a 115v model ( not a 100v Japan model ) if you are in US otherwise a transformer is needed!
rodman99999
6,032 posts
 
Read the paragraph under ’PROTECTION CIRCUIT’, on Page 1 of the Luxman AX590 manual: https://onahighernote.com/oahn/wp-content/uploads/2015/01/L590AX.pdf Luxman probably knows, how hot is too hot, for their product and have taken precautions.
bigkidz
3,325 posts
 
IMO it probably is running as it is designed to run.  I have a Luxkit amp that runs hot, very hot to the touch so you wouldn't leave your hand on the unit and it has open vent slots but small heat sinks.  The kit has been around 30 years and works fine, sounds fantastic also.  One of the best sounding amps I have ever heard or built myself.  Oh course mine is slightly modified by me!

BTW the Luxman will wipe the floor with the First watt amp so I wouldn't even consider that move.

Happy Listening.
mijostyn's avatar
mijostyn
8,226 posts
 
Perfectly normal. The amp has over temp protection. If it were abnormal it would be shutting itself off. This is what class A amps do. 


khmyjy OP
14 posts
 
Read the paragraph under ’PROTECTION CIRCUIT’, on Page 1 of the Luxman AX590 manual: https://onahighernote.com/oahn/wp-content/uploads/2015/01/L590AX.pdfLuxman probably knows, how hot is too hot, for their product and have taken precautions.

Thanks for the info, it is very informative 
so many nice and helpful people here, love this site.


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