Busted Accuphase M-60 Monoblock.

[Clive]

Well.....above 100Hz I only use 2W to 5W. It's a bit crazy 1.8kW on the bass and 5W on the rest.

[Audio Al]

Lift the amps and stand them on some wood battens , better air circulation , or you could mount a computer fan unit behind each one blowing low volume of air underneath ( Hmm I just said low volume )

[brian2957]

Well , at least they're working Justin , and you will know what to do the next time . Wife telling you to turn it down I've got one of those too

[User211]

Even the local deer were having issues with the noise.

[User211]

Lift the amps and stand them on some wood battens , better air circulation , or you could mount a computer fan unit behind each one blowing low volume of air underneath ( Hmm I just said low volume )

Either side of each mono are the output transistors. They get hot and the gap between each amp in the rack is inadequate. So those get even hotter as each amp heats the other one up.

The answer is not to drive them so hard for such a long time. They just get warm at normal levels.

Or move them apart in the rack which can be done but they have to be moved forward or backwards to space them, which looks bad.

Or rely on the thermal protection

[mikeyb]

Thing is you can only press that button 3 times it it's a full rebuild.











.

Just kidding

[Yomanze]

Justin, you are using hardcore speakers that drink watts like a Scottish alcoholic drinks Buckfast. Count yourself lucky that you didn’t damage your amps, and also you’ll already know that very small volume increases can result in a lot more Watts.

[User211]

Neil, you are correct.

Actually I have to say I am impressed by the Accuphase's ability to cope with it aged 44 years.

The 211s never shutdown. A 400 Watt KT150 amp did. Many, many times. Granted only in triode mode at 250 Watts.

The 211s have an inbuilt protection mechanism. You can hear when they don't like it. So you never play beyond their limitations. Which is capable enough and they are the long term faves.

The last time I checked the Accuphase line up they were all a bit pussy powered into 4 Ohms.

[AJSki2fly]

Panic over. There's a push in button at the back that had moved out on one of them. Thermal protection trip switch? I dunno, but it comes on.

They are fine

Mods feel free to delete the thread.

I would recommend going to Specsavers so you can then see the button on the rear and at the same time you could get your hearing tested, I believe they offer a free service for this.

[Spectral Morn]

Great news its not damaged