To be clear, are these the Mullard tubes believed to be lower quality/knock offs?   http://www.ebay.com/itm/130295387885?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I've been waiting over a month now... Come on Christian, you can do it!   Can't wait to have my cables in hand ;)

So I went ahead and bought a matched pair of Mullard CV4003's from the eBay listing posted a page or two back...   WOW.    This has to be the most significant tube upgrade I've ever made; Very rangy and smooth, with a nice punchy bottom and lower mids..   Thank you very much @abvolt for...

Long time reader, first post.   I've been experiencing the same filter frustration that some of you others have; jumping back and forth from blue to white, then back to blue sans foam, then back to blue with foam. Anyhow, I've managed to solve the issue by cutting each foam in half with an...