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In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps
Post Subject: The 4V takes a lead.Posted by Romy the Cat on: 6/1/2009
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Very cool results I’m get in here. I took the new Slagle’s transformer that has reconfigurable sections and put it in the Milq. With 13V on primary I have 625mV or 520mV on secondary, or 20:1 and 25:1 (with 200-300mV normally drive the speakers at cruse volume). The lost of gain is manageable and I have enough in my LPAD to compensate it. In fact I think I will have enough gain even for 45s to try….
It is unquestionable that my 4V tube need more then 20:1 and with 25:1 they begin to sing, particularly the Klangfilm KL-71403 and YO186. They got some transient thump and sound just wonderful. What particularly is very cool is how genital they enter high dynamic – they do it with dignity and with amassing grace. I would not say that my 2A3 are losing in something, I am not at the state what I would make those observation. As I told with DHT MF in band path I can make any tube to sound as anything but as it is calibrated now the 4-volter do very serious job in MF.
Now, about the mistake. I did not think about it before I have done it but not I see that it would be very good idea to have an automated compensation for gain lost when I flip a switch from20:1 and 25:1. It would not be default to do but as not it is gone, so I would need to find a way to fine-calibrate my LPAD, probably getting one of those old knobs from old scoops….
There was a very funny moment. I was listening one MF channel just with YO186 and restarted the amp. The Helsinki Philharmonic was crashing through the reticules Samuel Feinberg's Piano Concerto (if it were LP then I would swear that it was played backward) and then suddenly someone knocked in my door. I went to open but no one was there. To my surprise it was how the YO186 played the bass drum. There is some sense of “aluminum insanity” in the way how YO186 stress the bottom of S2. It sounds “distorted” but so … lucrative and attractive! I would LOVE to hear a full-ranger with YO186 with a “right” driver. It would be nice to know what the “right” driver might be. Perhaps I need to convert my Sun Audio crap into full-ranger YO186 and for an assault trip? I wish I have ego to it… but it is pity as it might be a very interesting full-range DHT SET.
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