"Hey Sckott, I read some of your posts back when you were just getting into tube components and I know (I think) you're running a couple ST-70s as monoblocks. I was wondering:"
Nope. ST-70's as monoblocks are kinda silly. If you wanna get anal about it, it's best to get units with same-batch numbers and components (which I don't have) and "in-batch" tubes, which I don't have. When you monoblock the ST70 the actual sonics aren't as good as if you left the thing to do it's rightful stereo job, trust me. If you really wanna mess with it, you might want to mod it to bring up a stronger high-end, but I'm even going to un-mod my main Dynie soon.
I have used 2 Dynaco ST70's for 4 channel. One is bone-stock, other was upgraded with Sound Valves upgrade board and left for dead. Problem? Bad hookup wire and tubes. Bingo. together, both were used for the use of DTS and DD. I was using DIY high-efficiancy speakers and a sub. It kicked some ***. Recently though, I've aquired some amazing speakers, the Acoustat model 3's, wired with Monster Cable with the Medialion transformer upgrade. Cost? Free (guy said, get em out o' here and they're you'rs!), and they're 100% fine (might want to change the grill cloth, kinda grundgy but Steve said "Leave it, gives it charactor!" heh. These speakers are 58" high. 28" wide. (looks just like the picture on the bottom of this page:
http://www.audiocircuit.com/9041-esl-circuit/Commercial/Acoustat-ACO/9041CMACO-PIC-M-3.htm )
Dynaco's with Acoustat electrostatics? Nope. The speakers kept saying "Drive me hard, bitch!" I went ahead and bought an old SS Hafler H-225 amp, with close to 175 wpc at 4ohms. Result? I was playing Steve's "McCartney" last night, and playing "Kreen - Akrore" I got the most realistic "he's in your living room" sound. I mean, the precussion, my eyes kept blinking because it really sounded like he WAS there. It was spooky. Right on time for Halloween. These speakers fill the room and the subtle sounds are absolutely and purely realistic to the nth degree. Definately the best speakers I've ever heard...BUT they need power, and lots. No 65wpc is gonna do diddly!
So, I took one of the Dynacos down to the pyseudo-furnished part of the basement, gonna build Doc's Foreplay, put a Cd player on it, maybe a tuner ;) and use my ol' efficiant speakers down there. It'll keep the spiders out.
1. What kind of preamp are you using?
A: Rotel RTC-965. It will do audio, video, RCA/Coax, optical, and S-Video. DTS and DD compatable. Very sensitive and smooth. It has a phono preamp on it, but I'm using Carey's PH-1 from AES, a tube kit preamp to the AUX 5 in. Yep, it has lots of ins!
2. What interconnects are you using between the two? (that will fit on the ST-70)
A: Huh? Not getting you there, but then again, I'm not and never did monoblock the ST-70's. I used them as straight stereo pairs to use on DTS CDs and the like. Very effective!
3. Do you have a tube CD player?
No. Opical CDP Sony type (can't remember the model no.) but I like the optical out, goes right to the preamp, easy and pure. Optical works best when using DTS Cds. Now, even my bootleg DTS Cds work great. On coax, because of the type of DTS they were written with, doesn't work as hot.
I'm not convinced at such a low output level that a tube CD player is vital. The heavier amplication catalyst is best tubed, which is after your preamp stage. In the work basement, I'll have tube pre and amp, so It'll be fun!
Anyone is also better off with something LIKE a Rotel, because you can hook ANYTHING up to it (modern or vintage units), and then either send it to tube amps OR soft SS amps. See? Easy and flexible, and most audiophiles change their equipment all the time, so that was a smaat purchase :)
No, with my Hafler? I don't miss the Dynaco at all. Wow.