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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
unsound
7,329 posts
 
Previous B&K amps like the legendary ST 140 were capacitor coupled the M 200's are DC coupled, basicaly just a different way of doing things for the same purpose. DC coupled designs are often reputed to have tighter bass response, which is the case with the M 200's. There are other differences as well. B&K historically was known for a warm, round sound, being a bit soft in the bass (especially into lower impedances)and foggy in the treble. The M 200's are a bit cooler, leaner, more defined overall and tighter in the bass region (especially into lower impedances).
gbr
10 posts
 
i have st-140 monos. i upgraded the power cords with VOLEX from ALLIED ELCTRONICS. they are Belden 14ga. wire with a shield for $11.00 to $15.00 ea.(length dependent). the best deal in audio power cords IMHO. i put overbraid on mine for a good looking cable.
player
9 posts
 
Anyone know how the B&K Video 5 compares to the 200s.
I own two of them and was considering using them as mono amps in a non-video application. Sorry to bend the thread.
But thre is obviously expertise here and I have always wondered if the Video 5 was less than optimal for straight audio due to design parameters. Never saw a review. They are from the Sonata series if that means much.
bdgregory
1,712 posts
 
Anyone know how the B&K Video 5 compares to the 200s.
I believe the Video 5 is equivalent to the ST140 except it has 3 channels rather than 2, and of course the power supply is spec's to handle 5 channels.

I had a ST140 Sonata version at one time and while it's nice, they do not stand up to the M200 Sonata in terms of smoothness, power, etc. It would seem to be a waist to use one channel (of 5) from each as a monoblock, although I'm sure it would work, and with one channel getting all of the power supply capacity it would be beneficial. OTOH, you may be able to sell both V-5's, buy a pair of M200s, and pocket some cash in the process.
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