need power cord to my system.....

SDC - had similar results with aftermarket cords on my 4B-ST. I will qualify that I have not the disposable income to audition the really pricy cords but I played with cords ranging from $50 - $250. No audible gain in performance. My local dealer who carries Bryston advises that of the amps he carries the Brystons are the least affected by introducing pcs - something about how well Bryston rectifies the juice once it gets inside the box... So Wilbore, I feel the best thing to do is audition if you can or purchase based on the availibility of a 30 days return policy. I know in my heart that cables can make a difference but I am of the opinion that power cords can at times offer the least increase in performance - YMMV

TG Audio HSR ijoh

Are the current Bryston amps still using "old style" iron core ( E-I ) power transformers or have they gone to toroidals ? Sean
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Sean: all of the newer Brystons (the "ST" series) use qite large toroidal transformers. I don't remember the exact spec's on the transformers in the 4B-ST, but I think we're talking about 1.2 - 1.4 kVA units.

Sean - I am not sure about the NRB version which preceded the current ST version but the ST is torodials - full dual mono construction on one chassis.