B&K sonatas 200 monos


Hello my fellow audiogoners. I just purchased and received a good deal on a pair of B&K M200 sonatas. I was very shocked to hear the heft and considerable bass coming from these budget mono amps. I am using at the time a pair of 300ti soundynamics and the amps replaced an old amber series 70 amp that I still love and most likly will use in a second system or with a ht. I noticed it pumps out considerable bass without turning on my Rel Strata III sub. I was curious are any using them the B&Ks and have you made any changes as far as post, caps,and power cords that are captured on both units.Thanks to all and have a great day.
schipo
I have 3 pairs of these. They are steal at prices they sell for used. In stock form, they're bullet proof. and sweet/smooth sounding. I've tried to upgrade/replace them with purchase of 5 other amp brands, but I ended up selling them and keeping the M200s.

I had one of my pairs mod'ed by John Hillig at Musical Concepts. The mods are expensive, but take the amps to another level. I'm driving Totem Mani-2s with the mod'ed pair and it's an excellent match.
That sounds good, the upgrade path. I had an Adcom 555 many years ago upgraded by him excellent performer. I was wondering only about one thing that seems to bother me about the amps built.I hate the flimsy rocker switches on the amp, have you had a problem with them at all. I am still amazed with the sound quality for so little money.
I've had only one problem with the rocker switches. They are easy to replace, and cheap to buy though. I sent one of my pairs into B&K once to have them tuned up (it cost me $100 for the pair, plus shipping). They replace the rocker switches as a matter of process. It may be possible to find a better one, but it's not something I've considered a priority.