bajwe Posted May 22, 2022 Posted May 22, 2022 Further information: I am selling on behalf of a neighbour. This B-2X is part of a deceased estate, but has been in storage since 2010. The family turned it on after recently coming out of storage and it has been in my system for a week, and I have been checking it all works. There is not much info online but it was the pinnacle amp for Yamaha in the 1980s (following in the shadow of the B2). It has had one owner since new. It has picked up some nicks/scratches and the left B posts are wobbly suggesting they have broken from their mount but are held in place by their wiring - I have not tested if they conduct. The amp has collected some dust and pitting in storage (see interior photos) and could use a clean/service. A good set of teardown photos to help a DIY clean/service can be found at this Japanese link. http://amp8.com/tr-amp/yamaha/yam-b2x.htm Big sound, fantastic brutalist black look - with cyclops red bar led. Dual mono construction and unique hybrid Class A/Class A/B amp which runs warm. The B-2X is rated at 170 watts (8 ohms) 240 watts (4 ohms). Sensitivity 1.3 v / 25k ohms input impedance. Comes with original manual and technical brochure (in used/stored condition). Selectable voltage includes 240V. Also for sale in a separate ad is the matching C-2X preamp. Prefer local sale, shipping is possible at buyer's cost but it weighs 26 kg (!) and an audition is possible southside Brisbane. Advertised elsewhere. 1
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