Hi Costerdock,
Far be it for me to criticise anyones physical room layout.
But can I say that putting your valve amp. on top of your speaker is a most unwise thing to do.
Valves are notoriously microphonic and will pick up LF vibrations though both the electrode plates and the heaters, (particularly the heaters) No amount of damping (which you may be using) between the amp. chassis and the speaker top will totally isolate the amp from feedback.




Originally Posted by costerdock


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