Above is the English brochure
Above is the Japanese
brochure. Two things are interesting about it: 1) it states that a box
of Monster speaker wire is included with the amplifier and 2) Sanyo was the Japanese
Above it the "X" Series Amplifier White Paper
Above are pictures of the prototype "X" series amps.
The X25 and X15 amps have gain controls like the P250 and the text was
modified from the "01" series amplifiers - mainly the M, N. R and W.
Be sure to click on pictures for full size