PrimaLuna ProLogue One versus Two

I am using Axiom M60s with the Prologue Two. I could not be happier. Can't wait to upgrade tubes.

Jh2os, I've got a pair of Mullard CV4004/12AX7's and a pair of Amperex 7316/12AU7's on the way. I'll be sure to post my thoughts.

I also plan to try other tubes later on this summer. My "discretionary spending" is maxed out for the time being although I probably will pick up a few inexpensive tubes for comparison. :-)

What EL-34s have you tried and what are the differences? Less punch more smoothness? (this is what I tend to read usually)

Jh2os, if I can get a hold of someone's digital camera, then I can get some pics up here. Pics are most enjoyable. When this happens, you will see the problems with the layout (27" TV between speakers, flimsy audio rack, etc...). Sometimes I wheel the TV out of the room for listening.

Did you do the dedicated circuit yourself or have someone do it? Cost?

Paul

oh well, wish there was a delete function. this was supposed to go in my 'system. sorry. please ignore.

About $180 for each pair. I got the Platinum Grade from Upscale on the Mullards - that jacks up the price quite a bit. Amperex 7316s seem hard to find. Good thing is both these tubes are supposed to last forever.

Well, here are my short comments on tube rolling so far. I have tried the Mullard CV4004 and the Amperex 7316. Both very expensive tubes. I'll probably keep them but I figured I could sell them if I don't like them (but, I do like them, oh yes). Finally, one doesn't really need to tube roll this amp as it sounds great with the stock tubes.

Mullard CV4004/12AX7: If you could draw a picture of the sound, then the Primaluna prior to this tube would have fuzzy edges. The edges are now clear and precise. Sexy? Yep. Kevin Deal's recommendation on this tube is right on point. I love the tonality of this tube. Most noticeable was what it did to the bass...so much more to hear from the bass.

Amperex 7316/12AU7: Still way to early for comments but I do notice that pairing this tube with the Mullards leads to a tighter sound with more punch. The bass sounds lower and fuller to me but with the same amount of definition I gained from the Mullard (good!). Soundstage seems moved back a little bit. Both tubes made the soundstage less forward. I definitely hear a lot more 'energy' in the music than with the stock Chinese tubes (also good!). I need to play this tube a bit more to get a real impression, however.

Next up will be some less expensive current production tubes.

I listened to Tim Buckley - 'Happy/Sad', Joni Mitchell - 'Blue', Air - 'Talkie Walkie', Echo & the Bunnymen - 'Crocodiles', Bill Evans 'Explorations' SACD, Sarah Vaughn - 'Sarah Vaughn', and many others.