B&K ST140 Power amp Photo 1388902 UK Audio Mart

B&K Components Ltd. was founded by John Beyer and Steve Keiser in Buffalo, NY, in 1981. The company evolved out of a single amplifier design that Steve Keiser had created attending electrical engineering school during his final year of college. Upon showing his amplifier to John Beyer, who was thinking about putting together a stereo system for his own use, John was so overwhelmed by the.. I must admit that even before I connected up this amplifier I was put off by the accompanying literature. B&K makes some persuasive points about the validity (or rather the lack thereof) of some traditional amplifier tests, but the literature was so loaded with flagrant grammaticides, syntactical ineptitudes, and outright errors that I could not help but wonder if the same lack of concern had.

Guy Lemcoe reviewed the B&K ST-140 in December 1989 (Vol.12 No.12): This $498 amplifier (footnote 1) has been around for quite a while, the first review—by the one and only JGH—occurring over five years ago. He liked it, as did Sam Tellig, the Audio Cheapskate/Anarchist (Vol.7 No.4, Vol.8 No.8, Vol.10 No.7, Vol.12 No.4). It incorporates class-A pre-driver circuitry driving a class-AB.. "Before auditioning the ST-140, I had been using a recently upgraded (to a Series II) Threshold Stasis S/500 power amplifier, having just returned our Electron Kinetics Eagle 7A (my favorite solid-state amp to date) for modernization. We'll have followups on both of these in a future issue, but suffice it to say that the Threshold now leads the solid-state field, with (among other things) the.