Rerurn to Romy the Cat's Site

I got toady the preamp from Guy Hammel. Oh, boy, I did not expect that it will be so interesting.

The initial idea was very moderate to add more inputs to my preamp. We ended up with adding 5 inputs extra input, so I have 11 all together – eventually enough for everything…

They I figure that if Guy will have the unit them why do not ask him to address the hipper-sensitivety of the preamp to the quality of electricity. The idea was very simple: to convert the C filter into RC filter, to employ the Silicon Carbide Schottky rectification diodes that showed themselves so nice in 6-ch Melquiades  and to beef up the preamp with large better caps. Also, since the 6-ch Melquiades  is such a pain in ass to drive I asked Guy to bias the output stage as hot as possible and to drive the output impedance as low as possible.

It does not sound like a lot of dramatic changes but to my surprise when I got the preamp today and gave it some listening discover that it has quite a number of clearly auditable improvements of it’s performance. I do not know what made the trick: the 3R of out impedance, the 400.000uF of capacitance or the Silicon Carbide rectification something did. What is interesting that my Placette before was absolutely transparent and now I reposts the “improvements”. It is not an absurd and I will elaborate on it later. Sometime next week I pill pit some thoughts together describing what my new preamp does different in term of sound.

What this new Placette++ demonstrates takes the entire idea of preamp’s duty much further, I need to spend some time with it and to think about it as I feel the new horizons are exposed.

Rerurn to Romy the Cat's Site