@Bombay: where did you get those Amperex Bugle Boy EF92 from? Can't find them on ebay but I'm very interested in listening to them.
The Haltron 6ag5 (EF96) have arrived a few days ago. At the moment, after having them burned in, I'm listening with all kinds of music. Soon after I'll compare them with the best EF95 tubes as reference. Without a direct comparison I can confirm they don't do anything wrong. Pretty dark and strong bass, a piano sounds like a piano and voices sound natural too. Not sure about the quality of the treble yet.
Edited by infinity650 - 3/26/12 at 9:13am