tube amp dilemma with electrostats


I am just getting into tubes as i have a dedicated home theatre system but want to get away from that solidstate sound for 2 channel.I currently use the anthem p5 for the 5.1 sound. I want to use my modified shanling cdt100 cd player directly into the tube amp of choice to power my martin logan ascents.This is where the dilemma begins:a friend borrowed me his dynaco 70 to try out and i fell in love with tube sound but the dynaco is a little under powered [35wpc]i think for the logans .He thought that if he brought over his original mcintosh 275 and we tried it out that we would be in awe.Well we both couldn't believe that the dynaco sounder richer and warmer than the mac.We tried changing the tubes from kt88's to the 6550's and that made it a bit better but still not like the dynaco.the sound from the mac paired up with the logans was bright sounding, too close to solidstate.So i am looking for anyone that has had the experiance of a recommendation of a tube amp with the logans. I do not want to buy a number of tube amps before i find one that is a good match.For starting out i would like to spend up to 1500.00 for a used amp.Please give me some recommendations.
Thanks Les
les
Hi Les, looks like you and I are on a similar quest. In my case, I've had my SL3 for nearly 5 years, and I'm currently running the most satisfying setup to date. Before I go over the gory details, I think it's fair to say that the recs above of the VT100 and various CJ amps are very wise. The benefit of going with one of those larger amps is that you will probably only need one. My current solution is a bit different.

I am biamping with a SF power 1 running the bass drivers and an Audio Note SET 300B based amp on the panels. The amp only works with the panel since I've inserted the Zero autoformers from Paul Speltz. The Zeros raise the impedence of the panel by two fold and with the SET amp they make some sweet music.

I'm not quite there yet, and I may never get all the way there with this setup. For one thing, I think getting rid of the passive xover and using an active one could help. Also, using a Push Pull amp on the bass and single ended on the panels may be causing an audible temporal issue. In my room -- kinda difficult -- a small timing error in the bass may not be noticable. But, these are things I plan on tackling before ditching this basic setup.

Not sure if this is what you're looking for in terms of simplicity--or lack of it! But one thing is for sure, I have never before had the resolution and texture that I have now. Is it a matter of single ended operation? Triode? A seriously modded/tubed amp? Maybe, but it works! My quest is not over, but at least now I can relax and listen while I consider my next move.

Hope this helps. Write me for more details if you'd like.
Douglikesaudio, were there any negatives experienced when you added the autoformers? I'm especially interested in your insights because you've got electrostats. I've read that they may smooth out some of the detail, resulting in a more euphonic but less revealing sound...your thoughts?
Doug:
Thanks for your input i am new to the tube addiction and very uninformed about the possibilities out there to bring out the best in the ascents.It appears that the help i have gotten from the recommendations gives me a good place to start.I know that i am going to start off putting one foot into the water but eventually [ like my home theatre system ]i will be buried neck deep.Thanks for all your comments and recomendations.
Calanctus, can't say that I hear a smoothing of detail. In fact, the recovery of detail is now a strong point and the greater inner resolution has made listening something that holds my attention. I had a concern that there would be a loss of detail or that some of the magic of SETs would go away, but that hasn't happened. In my system, the sound isn't euphonic--which I'd guess is related to 2nd harmonics--until it's really pushed. Actually, kind of amazing how loud the panels will play with just 8 watts. The biggest negative I've found with the autoformers set at the appropriate taps is that they are showing the poor integration of the bass with the panel. I know this is only made worse by the use of a PP amp on the bass and SET on the panel.

Les, I am happy for you--finding your way into the tube world! It's as crazy or sane as you want it to be. Your idea of dipping your toe in with a single, good quality amp seems like a great way to start. After you get it, let us know how it sounds! Enjoy.
Hey guys i'm starting to hear talk about the Primaluna Prologue 2 integrated amp. Any of you guys have any experiance with it, supposed to be great with electrostats. Can anyone elaborate ??