Hi Matt,
How's it going? I'll contact you soon to have a listen to the new amps and perhaps once the cricket season is over we can go for a ruby and a few beers with Glenn :cool:
Incidentally, Ian and I have been experimenting with stepped attenuators instead of the carbon volume pots that Glenn normally uses (Alps Blue and Black) and, quite frankly, there is a massive difference in performance, with the stepped attenuators completely outperforming even the revered Alps Black.
The Glasshouse Takman metal film unit here has given the best sound:
http://www.hificollective.co.uk/cata...or-p-4926.html
Review by Neville Roberts (makes interesting reading):
http://www.hificollective.co.uk/pdf/...al_stepped.pdf
At the moment I've got the stereo on 24way gold fitted on my Charisma X, but will be trying one of the Seiden units next week. Anyway the upshot of this is that I can say quite categorically that the carbon pots used in Glenn's designs are severely limiting their performance!
I know from speaking to him that he normally doesn't like stepped attenuators, but trust me, there is no downside whatsoever with the Takman - music is simply revealed, unhindered, in all its glory. In comparison, my Alps Black sounded soft and rounded-off, giving bass in particular a 'tubby', 'padded' quality. There is also no forward overly 'bright' signature to the sound or lack of bass (far from it - the lower regsiters are tight and deep like I have never heard before!), which can sometimes be the case with metal film attenuators.
The overall effect is rather like a tap which had previously only been half-open now being opened fully, thus allowing musical information previously 'held in check' to come flooding through; in effect a significant bottleneck is removed. And the Takman is available in mono, too!
Honestly, this is a no-brainer and something Glenn must listen to for himself. I think these pots should be fitted as standard to all of his preamps. I'll publish a separate review later, and discuss stepped attenuators in general in more depth. This for me is another 'amazing new discovery'! :smoking:
Marco.