Hello
Copland CTA 301 MkII is a match made in heaven with Bryston amps. The Copland has blown away every preamp I've tried on Bryston gear. Including ARC LS-15, Conrad Johnson, Blue Circle, Rogue Magnum 99(good piece), Chord, and Bryston preamps. The Copland turned Brystons sterile nature into a warmwer vibrant presentation. Most noticeable was new found detail without brightness, incredible soundstaging width and depth....(with no shrunken images, and incredible seperation between images), but most importand LAYERING to die for. Bryston has known to be 2 dimensional sounding, the Copland makes everthing sound more 3Dish. This exact question has been asked a few times on Audiogon, do a search......
Hope this helps
dudeaudio