GoodSoundClub - Romy the Cat's Audio Site

In the Forum: Melquiades Amplifier
In the Thread: Single-stage Melquiades vs. DHT amps

Post Subject: Further considerations: DC-coupling.Posted by Romy the Cat on: 4/21/2009

I need to tell you that I did not finalize mu Milq DH DSET up to the point where I would listen it. Perhaps I am wrong but the amp even in the last version has some lack of agreeability. It is good on paper, it might even sound right when it will be finish but it does not feel as it might be the last solution for my MF. You see a right solution in my view address not one problem but a multitude of the different problems and I do not have that intellectual bliss for my current design.

Last night I was advised by willing to be anonymous collaborator a solution that would drop my grid impedance on driver tune and at the same time lover my grid AC voltage. That solution (if it sounds right) opens a Pandora Box for completely new way of thinking as it will eliminate my drive tube to force the power tube into class A2. If so, then why don’t I direct couple sages? The DC-coupled stage will be in fact the same one-stage DSET with input filter. This idea is very much on the working now. I do not particularly case about the full-range DC-coupled SETs. What whatever reasons among whatever DC-coupled I heard I always was bothered that harmonics ether of MF or in Bass were wrong. The amps were able to superb MF but with vacuum-like harmonics – very unpleasant. The bass of those amps is always too fast and too inhumane. Listening those amps I feel like am in anechoic chamber and people do a physiological experiment on me. However, my MF is not a full range amp but a DSET that case above 3200Hz. I might go away with it very nicely…

So, if it work I might preserve the super cleanness of my single stage and pick some alleged benefits of DHT… Let see what new days will bring up….

The Cat

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