Heres how to test that old valve amp you found in the attic. Why, just find the nearest mains socket and plug it in! See the lights come on therefore it works! Its obvious isn't it? - but not so obvious is in...
OK you have got an amplifier and it is all sound and the electronics are all working, but then when you try to turn up the volume, or fiddle with the bass control, what happens is you get a whole load of...
I have had a good many loudspeaker drivers delivered to me and a fair number of them have arrived damaged due to poor packaging. I am talking here about the bare-bones speaker chassis, not something in a...