Help with Vintage B&K Power/Pre Amps


I have a ST2140 power amp and a PRO 10MC Sonata Series preamp... thought I had trouble with one of my tweeters (right speaker sounding overly bright to the point of listening fatigue)... a friend brought over a pair of B&W monitors and after plugging them in, the right speaker had overly bright highs as well... anyone have any idea what might be causing this... do I need to send the 2140 into B&K to diagnose, or maybe the PRO 10MC, or both... any suggestions appreciated... this journey down the vintage equipment road can be challenging... thanks in advance.
tapar1

Showing 1 response by timlub

The Pro 10MC was one of B&K's best products that they produced, it is a very listenable product, most likely worth a repair if not too costly. However, it is valued in the neighborhood of $250 right now. The Classe 50, is clearly a better product, but probably worth somewhere around $500 to $800. Neither of these products are considered bright. Tobb has recommended a terrific product, but it is new, you won't find a used one for quite some time and it runs around $6500.
At under $1000, I like the Muse 3 Signature or maybe a Audio Research LS9, both are single ended and balanced, both sound near dead neutral and both have remote.
You could could try a cables or a little less tow in on your speakers or both, that would effect high end and listener fatigue.... Good Luck, Tim