[Sasha]

Has anyone compared 4B SST C-series with previous 4B SST (front face plate made of 3 separate pieces)?
I noticed quite a difference, wondering if it can be contributed to the fact my new C-series is not burned in yet, or there are indeed modifications resulting in different sonic signature?

Has anyone tried by-amping with 2X 4B SST (one drives LF, 2nd MF/HF), hopefully with PMC speakers?
Is it worth the cost (tri-wiring with single amp did god job)?

[vegasdave]

I believe they are the same amp. James confirmed this to me in an email from him.

[Phil A]

Yes, believe James has posted here as well that the difference is cosmetic only.

[Phil A]

FYI, here is one of the posts by James Tanner:

http://www.audiocircle.com/index.php?topic=25038.0

[James Tanner]

Has anyone compared 4B SST C-series with previous 4B SST (front face plate made of 3 separate pieces)?
I noticed quite a difference, wondering if it can be contributed to the fact my new C-series is not burned in yet, or there are indeed modifications resulting in different sonic signature?

Has anyone tried by-amping with 2X 4B SST (one drives LF, 2nd MF/HF), hopefully with PMC speakers?
Is it worth the cost (tri-wiring with single amp did god job)?

'

Hi Sasha,

Just confirming with you that the SST C-Series is strictly cosmetic over the previous SST Series. It is interesting though that you feel you hear a difference?  One time many many years ago we changed the front panel on/off button on the amplifiers to Black from White and some customers swore they heard a difference. I think our 'expectations' are very powerful persuaders.

james