B2 vs B2x
- Thread starter Efgen
- Start date
Dr. Ear
Super Member
Had one for nearly 20 years, excellent sound- and build quality. Those 100.000µF/6,3V caps in the class A stage might be hard to find.
BTW, the Class A stage is a low power amp which sends an inverted distortion signal produced by the Class B-Amp to the negative speaker terminal to neutralize any remaining distortion. The solder joints of the driver transistors get broken very often.
Dr. Ear
Super Member
Yepp, this is why I finally sold it.
It's about B-2?
what kind of clearance do those caps need? the hole spacing is tricky on the boards from what i can see below:
http://amp8.com/tr-amp/yamaha/yam-b2x.htm
but if you drill through the PCB and get a little creative, you might be able to fit one of these:
Cornell Dubilier 381LQ823M010A452 598-81LQ823M010A452 (non-stocked at Mouser, but the minimum is 1)
http://amp8.com/tr-amp/yamaha/yam-b2x.htm
but if you drill through the PCB and get a little creative, you might be able to fit one of these:
Cornell Dubilier 381LQ823M010A452 598-81LQ823M010A452 (non-stocked at Mouser, but the minimum is 1)
Dr. Ear
Super Member
The original 100kµF caps are not tall, maybe only 4-5 cm. Very difficult to find a replacement.
Stereomirror
New Member
The B-2 I like better for vocals, really sweet. The B-2X I like just a little better for lower end musical instrument sound, very powerful. You can't go wrong with either, I currently have both, if I had to chose one, for me its the B-2, better singing sound trumps heavier bottom sound for me. Except, if you have really hard to drive speakers then the B-2X might be better, thats why I got one ,to drive a pair of Ohm F's, and heard that the B-2X does a good job at powering the Magnepan speakers too.
Dr. Ear
Super Member
Agree. I prefer the M-2, too.
