Well, I have not had the pre-amp connected for a few months now, and seeing all this talk I decided I should give it try again. This is the first outing with the Special EL 38 El 39 and two Valvo mesh plate EL 11's. I am running it through an Anthem MRX 720, SVS Ultra towers, SVS Ultra Center PSB surrounds and an SVS PC-12 Plus subwoofer. With this tube combo the pre-amp out is extraordinary, have not heard it like this before, especially the bass. The Ultra towers have dual 8" bass speakers in them, and they were very active indeed. Diana Krall was to die for, was ready to ask her out to dinner, so realistic and the presence was right her in the room. Treble was crystal clear, and there in equal amounts, so the whole sound stage was very believable. Putting on the test tracks that I use, the bass actually rattled the pictures on the wall, the signal around 35 Hz was sustained with no distortion, so much so you could feel in in your gut, as well as the floor and furniture. Neighbors loved it. Tim had to come over to see what I was up to, so had to play a few more tracks at higher than normal, and I could see by his smile, he enjoyed it as well. Wants me to invite his friend over, to demonstrate the system, his friend has a nice system as well, and Tim thought it would put him in his place, might have to do that. At lower volume, it was still an engaging display of instrument placement, and levels. The last combo's I used with the Euforia, were a quad of EL 38's and it was nice but nowhere's near as good as this. The bass was much better controlled, and mid's were tighter as well. Glad you folks talked about this subject again, had not thought about the pre amp since last time was not that good. This will be a very nice time filler come winter, when the house is all closed up, and the neighbors are not out and about.