Better power cord for Bryston

I know it's a totally different animal than your 4BSST, but I replaced the stock cord on my B60 with a modest Signal Cable pc. An already quiet amp got quieter and there was a slight increase in dynamics. An upgrade that was definately worth the money.

Tvad is correct. I have a 4Bst - Changes are in your imagination. If you want it to sound better it will.

Have a friend change in/out without your knowledge - you won't know when it's in or out. Don't buy into the BS. Save $ and spend on something that counts.

Stay with the stock cord. Nothing to be gained from snake oil fantasy's.
If you need proof, have a friend swap cords without telling you - as in blind testing - you'll never tell.
The reason so many are afraid of bliond testing is that they'll realize they haven't got a clue.

Despite the naysayers and even Bryston's recommendations, an aftermarket power cord can make a big diffeence in what you hear. I've tried several - Harmonic Tech, DiMarzio, Silver Audio - but have found the best for my 4BST to be the Analysis Plus Power Oval which gives the 4BST greater dynamics. It is an audible and positive difference.
It's worth a try to see if you hear a difference that you like.

I usually agree with the snake oil warnings, too - unless there is a real logical/scientific reason that a product should make a difference. There is an excellent, priced-within-reach power cord that might actually add performance - the Granite Audio 560. It has Double Toroid EMI & RFI Filters (one at each end), is hand built in the U.S., and is shipped already 80% burned-in (so no lame excuses for it's out of the box performance.)

Granite gives you a 30 day no questions asked in-home trial. If there's no audible improvement, you can return it (less shipping and credit card fees, if any).

Here's a reasonably objective review:

http://www.stereotimes.com/cables020402.shtm

or the Granite Audio description:

http://www.graniteaudio.com/cable/page5.html

I'm not affiliated in any way. I have bought one of their Preamps and and one of their power cords here on Audiogon (by posting a Wanted ad and being patient) and think they make great products.