Your experience as Yamamoto owner?


Hello.

I'm interested in Yamamoto amps, likely the 45-based A-08S or the 2A3 A-011. There is very little info I found here and elsewhere online about these amps, and asking Yamamoto thru e-mail I have gotten no answer. Makes me wonder what to expect in terms of post sales service if I don't even get an answer when asking towards a sale?

So wondering what's the experience of the owners out there? Do you contact Yamamoto or someone else?

Anyone knows where to find user manuals online? Specifically I need to understand what kind of speaker impedance these are designed for, as there is only one set of speaker outputs. Or maybe there are different taps internally for different impedances and one can manually set it?

Thank you!
lewinskih01

Showing 4 responses by gsm18439

One other suggestion. . . not specifically about the Yamamoto, but about your design plans in general. . . You could contact DejaVu Audio outside of Washington, DC. They make their own line of 45 and 2a3 SET amplifiers and are highly knowledgeable and willing to customize.
I owned the A-08s for about one year and paired it with 102db ZuAudio Definitions. At that time there was a US distributor (I forget the name), but the amplifier never needed service. Eventually and although I enjoyed it a lot, I decided that I wanted a bit more power. Srajan (6Moons) also owned an A-08s and wrote about it extensively I have always found Srajan responsive, and he might be a good place to start.
As others have noted, the DejaVu website leaves a lot to be desired. It does not come close to describing the range of gear that they have available - including their own equipment. Visit the shop or send an email or call them. Despite the absence of their own equipment on their website, they make a range of electronics including a full range of amplifier topologies - SET, PSET, and PP using 45, 2a3, 300b, et al - using vintage components. I had both a Yamamoto A-08s and a DejaVu 45/2a3 SET and liked them both. Simple circuitry. Very similar sounding.
Definitely a steal. There is also an ad for a pair of PP 45/2a3 monoblocks. Unlike Yamamoto gear, cosmetics are very utilitarian.