Hello Kgcdc,
Nice amp, congratulations.
Would you inform something about the sound quality of this amp??
The output transformer seems a EDCOR, what is the model??
Do you had a link to this tube amp builder??
Thanks
* Thanks
1. I've only listened to it for about 3 days now, not really very critically yet. It's still burning in and I'm listening to it via new AudioKinesis Prismas, which also aren't broken in. Lastly, I don't have my turntables set up yet, so for now it's just an old Jolida CD player via my (really excellent) Don Allen linestage.
With all those provisos in place, I can't say enough good things about this amp!
It puts out about 13WPC, which is more than enough to drive my 93db Prismas to *thunderous* dynamics. I'm listening right now to Lucinda Williams live album and it's really *just right*. The mids are gorgeous and lush, like a SET should be. Bass is remarkably tight and precise for a SET. Highs are a smidge rolled off right now, but that's the Prismas (they have configurable rear-firing tweeters to control HF energy and I've got them at the least bright setting presently).
Saxophone Colossus through this amp and Duke's Prismas is *unbelievably* perfect. The Prismas are very very revealing and I hear a lot of the tonal quality of this GM70 amp comparing it to the Audiosector Patek that I've also been listening to a lot this week (it's also quite good).
2. All the iron is Edcor. I don't know the model numbers. The tubes are all unusual:
GM70 copper plated drivers
Siemens D3a driver tubes
6BW3 rectifiers (some Phillips I got cheaply on Ebay; I've got a bunch of different 6BW3s I'll eventually roll in)
3. Sean Casper doesn't have a web site for his amps; I'll ask him if he wants to drop by here and give some contact details for himself.
I'm supposed to go to Outer Banks tomorrow for family vacation, but I want to stay here and listen to music! :>
Cheers,
Kendall
