The other monster V-FET power-amplifier, coming a year after the original non-complementary B-1, powered by a set of four complemementary pairs of parallel connected 2SK76 & 2SJ26.
Four 18,000µF caps, two enormous trafos, star-shaped heatsinks which many later siblings would inherit from - and unbelievable reliability.
The B-2 quickly became a big bestseller : the total production should be in excess of 10,000 units - quite impressive, for an amplifier priced at 200,000Y in 1976 !
No wonder, it IS one of the best amplifiers of all time : V-FET and Yamaha oblige.
Briefly available in silver in a few markets, late in the production run, circa 1978/1979, but not in Japan.
William, who owns several B-1s and B-2s, has sent this little comment :
"I just did a controlled A-B listening test between the Sony TA-4650, a Yamaha B-2 and a Yamaha B-1.
The B-1 came out on top (at $1600.00 new and being an ALL Fet design, it should have) and the Sony and B-2 were so close. Both use complementary V-fets, so that probably figures. Perhaps the Yamaha units can handle more.
In an Audio Magazine Report, Bascom H. King said that the onset of clipping occured at 220W @ 8 Ohms on the B-1. Thats 46% over spec !"