Cytocycle has got it right.You need some warm sounding cable.Silver is a definite no no!!Cardas could do the trick but its pretty expensive.
Full sympathies with Tvad.Had similar problems with a BP 25/4 BST for nearly a year.If cable tweaking doesn't solve the problem(every reason to believe it will)the best bet is a warm lusious tube preamp.I switched to an antique ARC mated to a 14 BST coupled with a cable upgrade(Cardas Gold Cross - cdp to pre & Cardas Cross - pre to power).The results are heavenly.
Keep expermenting with used cable.You can't go wrong and its cheaper than a new/used tube preamp.
Happy listening.
Full sympathies with Tvad.Had similar problems with a BP 25/4 BST for nearly a year.If cable tweaking doesn't solve the problem(every reason to believe it will)the best bet is a warm lusious tube preamp.I switched to an antique ARC mated to a 14 BST coupled with a cable upgrade(Cardas Gold Cross - cdp to pre & Cardas Cross - pre to power).The results are heavenly.
Keep expermenting with used cable.You can't go wrong and its cheaper than a new/used tube preamp.
Happy listening.

