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In the Forum: Melquiades Amplifier
In the Thread: Full range Melquiades implementation
Post Subject: Do not forget to detonate to homeless Cats shelter.Posted by Romy the Cat on: 5/20/2012
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 decoud wrote:
Yes, it is built according to the schematic, but by someone else, from whom I have only just received it. The opt is custom-made nanocrystalline amorphous core, gapped at 300mA and running 200V/240mA.

Very good. The 200V/240mA with 300mA gap is a sensible mode. With 300mA gup what the lowest cut off you get at full 18W-20W power?
 decoud wrote:
It is quiet, precise and very fast (which last the unusual coherence of the SH50 helps). But what is most interesting, to my ear anyway, is the way in which the character and dynamics of tone appear to be signal dependent. Whereas an amplifier usually has a static tonal signature, imposing it on whatever is played in a uniform manner, this one intelligently adjusts to the input. A subtle accentuation of contrast that is helpful in a quiet passage is not there in a loud one, where it would not be. Though even harmonic distortion is there, as one would expect, it does not colour instruments, such as violins, where a richer pattern of distortions is essential to their tone. In general, the real microdissonances that give music vigour are reproduced, but without the cost of introducing fake ones elsewhere.  It is eerie.

Yes, I would say that the effect mode applicable to dynamics (it was what I called viscose dynamics or smart dynamics) not to “tonal signature” as I did not feel the amp modify colors during play. It does happen with dynamics and key is the driver stage.
 decoud wrote:

What parameters would you suggest tuning?

I suggest do not modify anything. If you have any specific sonic problem or specific requirements to navigate sound in one or another direction that I might to pith to you some way to tune the amp slightly…

Rgs,
Romy the Cat

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