Yamaha WXA-50 STREAMING AMPLIFIER

laatsch55

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Halfbiass...Electron Herder and Backass Woof
Sent to me by VSAT James. Quite the interesting little piece. Class D i believe, switching power supply. Tried to test it on the AP. Just like the X-Amps from years ago. Things are squirrels till you slap a load on it and up the gain. At idlethe AP Shows 400 uv residual with the dominating frequency being 503 khz...that's the scope reading I don't think the AP is good past 120khz.
Almost impossible to get a THD&N reading. Gonna have to break out rhemanual on this one.
 

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Don't sound too bad on the open baffles...
 

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