Edited by jibzilla - 6/2/14 at 11:04pm
My Apex Peak Volcano just came in, with an Electro-Harmonix tube, used as a substitute for the Tung Sol. I purchased the Sophia tube also, as to have a better tube to start off with. Sadly that tube never came in. Nor was I informed. This Electro-Harmonix tube has to be the most Microphonic tube I have ever heard. I am also hearing background noise, I have never heard on my system before. I left a call to TTVG, but this is a disappointing experience. I hope this all gets resolved, but today, I am going to pack the entire system back up.
I'm afraid many current production tubes are not very good mechanically or sound wise so dont blame the APV for this
Get yourself a good selection of vintage tubes like the Tungsol, Brimar or Mullard which will make a big big difference to the sound quality!
I did, The CBS/Hytron 5962 is a vintage tube I am using currently. So is the Sylvania 6SN7GTB, Peter sent me. The Brimar and Mullard tubes have a nice darkness to them, but can be difficult to find one that isn't microphonic at a reasonable price.
Personally I have never found a microphonic Mullard or Brimar unless its end of life. Some manufacturers tubes are just prone to this problem
I also like the Hytron an Sylvania too.
The Wuss, Depending on where a tube is being used, will depend on if Microphonic is an issue. In the A/P/V the tube is in the Preamp and that is when Microphonics are the most sensitive.
Complin, I want one, but they are hard to find, balanced and without being Microphonic. This is what I have so far,
6SN7W Sylvania Small Bottle 1945
6SN7GTA Sylvania Chrome dome green label
6SN7 Sophia New Stock
Tun-Sol 6SN7 New Stock
I haven't heard the Small Bottle yet, it just arrived
The CBS/Hytron so far is my favorite.
I would like the following:
V-231 Tun-sol Round plate
V-231 RCA Black Plate
So far none of the tubes are "THE" tube.