Quote Originally Posted by topspeed
PS Audio has just introduced a "revolutionary" new product called a Gain Cell. It now inhabits every amp, integrated, and pre that they build and summarily replaced their entire HCA2 and PCA line of products (now I know why AudioAdvisor had those combo deals). You can read about it here:
http://psaudio.com/newsletters/9-04.asp

A Question for you engineers out there (if any still inhabit the board); what is this thing in plain english? The spec's are, for the most part, latin to me. Are they good? Great? Revolutionary? Is a damping factor in the 1000's that important? While I'm sure there is some frippery thrown in, is this technology truly as landmark as the SDAT was (and still is)?

Thanks to Geoffcin for reminding me to read my freakin' e-mail every once in awhile.
And are being tight lipped about this one. From what it seems, if they are not going to patent it, then it's pre-existing tech that has been tweeked in some way.
Gain cards, and the like are available and expensive in audiophile quality. Most are built around op-amp tech, so my guess is that this is an op-amp based unit. The real genius of it is using it for preamp gain regulation, and mating it with the improved digital amp tech.