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In the Forum: Melquiades Amplifier
In the Thread: 6 Channel Version of Super Melquiades
Post Subject: The new power supply for MF channel: the SoundPosted by Romy the Cat on: 1/14/2008
Those who flow what is going on with my 6-Ch Milq know that for sniggle driver stage I this revision I went what for non-electrolytic capacitors. I use a mandatory for me input choke with 200uF on PS side and then 100R and 100uF on the amps side to ground. The caps I use British Ansar, metalized polypropylene 450V.
I have been listing this new MF channel for a few days. My typical way to access a MF channel is a long tradition for me: disconnect everything besides MF and Upperbass channels and listen string quartets. There are a lot of middle and late Beethoven’s quartets, Dvorak's, Bartok’s and Schubert's quartets is being played lately in my room.
What can I say about sound of the new MF channel? I hate it, I really do. At this point I do not know why it is. Perhaps the caps are garbage, perhaps the diodes are not good, perhaps the caps need time to break in, the OPT problems or perhaps I am experience of hundreds other problems that screw up Sound. I know that something is wrong. The MF channel sound now with the new amp very flat and not articulate, it has some very odd compression. It probably the worst sound I ever got out of S2 driver. Other might feel that it has the “field-coil softness” – not me. I call that softness as transience deficiency and the driver disability to go into the dancers regions. It sounds almost like Altec 808 with symbiotic diaphragm driver by 2W amp - what would be more disgusting? It is also important that the “tone” of the driver also collapsed (I would like do not let me to get stated about the tone of my MF driver now – it sounds like somebody is tapping atop of a turned upside down cooking pot!!!). I have also not idea why it is so and I have also not idea what is going on. I will keep to burn the Ansar caps for a next week or so then try to go back with my electrolytic to see if it will do a difference and return Sound where I must be.
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