Off target, but about volume: i have done some crazy tweak of adding a wire (not connected to anything else to complete a circuit, just 'out there') to the negative terminal of the amp/ speaker wires, for a tweaky improvement.
Various folks are selling some variation of these for $30 a pair..
Anyway i thought they seem to add more stuff in them as the tweak ages. So I decided to add Ferrites to the end of the 'pigtail'
The one curious side effect is the softer portions of music are softer, and the whole music had more dynamic range, Really!
So I find I am allowing my Bryston BP-26 volume to be much higher for the same end result. Because the music is just more natural. (and since i was complaining about my lack of useable volume control range i am happier
I am fully aware a tweak in which a lone wire is attached to the terminal, and is just hanging there, is crazy as "H".
And then my adding some electrical mass to the end of it makes even less common sense. Yet it works.
I make certain the ferrites cannot short out anything by sticking them in coffee cups. They are tightly bundled with the pigtail wire attached to them, and they sit under the rear of the amp.
This tweak has been called a ground tweak, a pigtail tweak. I added the ferrite as an exercise and like it.
It has been discussed over in Audioasylum, and the tweak for $30 a pair is for sale on Audiogon too. i made mine for a buck. and just stick them on with a spare banana into the five way negative side binding posts.
More PRAT, smoother, cleaner sound. the result of the pigtail. Why??????????? a great mystery.
PS I tried some on the positive terminal, and not as good.
