GamuT supposedly made only a handful of this model. I bought them new several years ago. To my dismay, GamuT labeled them with M200 labels. Because I'm considering selling them, I recently contacted GamuT to request confirmation by serial number that these are in fact M230 models. The response was that they don't keep track of serial numbers. Really? For a unique run of amps that retailed at $16,000? I do have the original receipt but that doesn't prove anything if GamuT won't back it up.
If you have a pair of these or know somebody who does, I'd sure like to know if they were all labeled M200. I had the top off M200s and compared to the M230s. Not the same hardware not to mention that the M230s have markedly better performance. Thanks for any suggestions or connections.