2. amps-preamps
  3. 1134799585

Blown Threshold S/300 Stasis II

I over drove it tonight and it went quiet without warning.The on/off light works.
I was really pushing it but I heard no distortion or clipping.I've never played it this loud,but I feel I still had head room.
Im using a re-built Dynaco ST-70 on top.
The Dyna seems fine.
The Threshold has a breaker for a on/off switch but I didnt notice if it had tripped.
One thing I did notice,is the left channel heat sinks were considerably warmer (not hot) than the right channel heat sinks.
Anyway,the amp is dead quiet.
Could it be the breaker/on/off switch 'burned' and a simple replacement may cure the problem?
Or am I in trouble?
Thank you for any advice.
dave

david99
jpainter236's avatar
jpainter236
115 posts
 
Email Jon Soderberg at Vintage Amp Repair. vintageamp@earthlink.net
safeharbor4cdf
4 posts
 
Perhaps you should listen to music without blasting out your eardrums and your masterpiece Threshold amp? Even so, I can't imagine driving this amp to failure. Check fuses and/or preamp.
safeharbor4cdf
4 posts
 
Perhaps you should listen to music without blasting out your eardrums and your masterpiece Threshold amp? Even so, I can't imagine driving this amp to failure. Check fuses and/or preamp.
safeharbor4cdf
4 posts
 
Perhaps you should listen to music without blasting out your eardrums and your masterpiece Threshold amp? Even so, I can't imagine driving this amp to failure. Check fuses and/or preamp.
david99 OP
1,467 posts
 
I forgot all about this old thread.
I replaced 2 rail fuses and the Threshold was in action again.

safeharbor,the S/300 isnt a 'masterpiece' amp.
I bought a asw-3000 B&W sub and with my curcio modded Dynaco amp there's no comparison.
The Threshold sounded hard and grainy compared to the Dynaco,and I can 'still' blast my eardrums out with the sub in the mix.
I sold the 'masterpiece' Threshold.

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