Paul S wrote:

What are you using for pre-amp chores? Have you tried phono sources yet?

I do not use analog for now, since my preamp is being rebuilt, I hope I will have it back this week. Well, I was listening today the life MET’s broadcast of Die Walküre with Lorin Maazel conducting (it was very good BTW) but it was as much “analog” as I can afford now. The New Milq DSET is 5K load and very complex load, my phonostage can’t drive it. My 7788 phonostage is around 1K output impedance and the “End of the Live Phonostage” is about 300R. They are both capacitance-coupled with 2uF… My digital on the other hands can handle the New Milq. Bidat has 40R out impedance, Lavry is somewhere there as well, and the Pacific is 20R. Ether of them drives the bid Milq with no problems.

Romy the Cat wrote:

Here are the basics of the 6-Chennal Melquiades DSET Amplifier complete, without secondary features. http://www.RomyTheCat.com/PDF/6-Chennal_Melquiades_DSET_Amplifier.pdf

anthony wrote:

Romy, I appreciate that this is an old thread now and that you may not remember everything from your time developing these amplifiers, but I have a (hopefully) simple question about the upperbass crossover in the schematic above.  All other channels have crossovers that are rather straight forward: bass is a low pass RC filter; Fundamentals is a RCL bandpass filter; MF is RL high pass filter; HF is a third order T Section high pass filter; but the Upperbass Channel as I read it is a RC low pass filter only (bandpass is required) within the first stage bias.  Are you relying on the coupling cap (0.022uF) to act as your high pass filter for Upperbass?