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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
erik_squires
16,924 posts
 
http://www.luxman.com/
I don't know why peeps don't rely on manufacturer's websites. :)

Per this, it should be ~ 260 at idle, and ~ 330 at full power.

Disconnect all inputs, and outputs.  You may have some ultrasonic oscillations going on. 
If that does not drop the power, contact the manufacturer.

Best,
Erik

imhififan's avatar
imhififan
2,238 posts
 
If OP's (khmyjy) amp is L-590AX and not the AXII, there's a possibility his amp is a 100v japan model.
The L-590AX is spec’d as consuming 220 watts at idle (310 watts max). The L-590AXII is spec’d as consuming 260 watts at idle (330 watts max).

erik_squires
16,924 posts
 
Yeah, running a 100V model at 120V will absolutely cause this problem!
khmyjy OP
14 posts
 
Hi I checked the reading it is about 332 Watts at idling with no volume and the same with music on
erik_squires
16,924 posts
 
As I noted, disconnect the speakers, and all inputs, and measure again.

If it's still 330, and you are sure you are running a US model, contact the manufacturer.

They are pretty responsive.
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