Bryston and Triangle may not be the best match out there, where both have reputation for being bright. That said, I think you really need to replace the source. Notice how the problem gets worse when you switch to the television sound via digital cable?
I have Triangle Antals 202, and my system used to be too bright with a transport-dac setup, which went away when I upgraded to a one box player.
But this might also be a a speaker placement and burn-in issue... how long have you had these Triangles? New Triangles sound "tilted way toward top-end," and the bass fills in only after 100-200 hours.
Now, getting to your question, yes, interconnects can make things better. I noticed substantial improvement in my previous setup when I inserted Acoustic Zen Matrix I, which was even bettered by Aural Thrills Active Gold. But don't forget powercontitioning/powercords, which can clean up a lot of glare.
Good luck and keep us posted.
I have Triangle Antals 202, and my system used to be too bright with a transport-dac setup, which went away when I upgraded to a one box player.
But this might also be a a speaker placement and burn-in issue... how long have you had these Triangles? New Triangles sound "tilted way toward top-end," and the bass fills in only after 100-200 hours.
Now, getting to your question, yes, interconnects can make things better. I noticed substantial improvement in my previous setup when I inserted Acoustic Zen Matrix I, which was even bettered by Aural Thrills Active Gold. But don't forget powercontitioning/powercords, which can clean up a lot of glare.
Good luck and keep us posted.