I bought this tube as a spare for holes 2 through 5 (actually I bought four, because 
the Chinese factory doesn't make 12AX7 and 12AT7 tubes anymore). So I also tried this one in the gain hole. The most noticeable fact was that this tube sounds very direct, not exactly harsh or shrill, but loud, in your face. It produces very good clean sounds, but when playing lead and rhythm the amp sometimes doesn't sound like a tube amp anymore. The Audio-Voice may be great for other positions, but certainly not for the gain hole.
