Who makes a GM-70 based SET?

Pani:

I agree with Sbank's assessment. In addition to the GM-70 I also own 45, 2A3 and 300B SET's, an Atma-sphere OTL, and a refurbed Dynaco ST-70 (EL-34). I find the GM-70 gives me most of the benefits of the lower powered SET's while enjoying greater dynamics over a wider variety of musical genres. As much as I enjoy the low powered tubes, they have a hard time (in my system) doing justice with large orchestral recordings.

I don't have a lot of experience comparing the GM-70 with the 845. Hopefully some one else can chimn in here on that. The GM-70 has more power than the 845. Also, in comparison there are fewer manufacturers making GM-70 amps. Because of this you are limited to NOS tubes. Good news is that they are (comparatively speaking to other SET tubes) not that expensive.

The preamp I'm using with all my amps is the Shindo Masetto.

Pani - Forgot to answer one of your questions. The GM-70 amp I have from SAC Thailand does not employ negative feedback.

Thanks for the response guys. For some time now I have been contemplating using a good tube amp with my ATC SCM40 but most people discourage me trying mate an 85db 8 ohm speaker like ATC with tubes. I knew about SAC Thailand and their products. I always thought their big GlowMaster based on GM70 which delivers about 70 watts per channel should work in my case. My room is little less than 200 sqft, which should not be difficult to fill. As usual there were no reviews about this amp and I could not gather courage selling my Symphonic Line RG1 MK4 power amp and buy the 70 watter tube power amp.