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Guys,

Thanks, for your help with all my HF channel frustration.

The saga is not over. The latest update is the following:

The “secured” Cubes 950 (1000pF and 500pF) were placed between the Milq’s HF channel and the result was dissatisfying. The sound was very clean but FH were rolled off. Then 1000pF was placed in input of the amp against of 43K of HF channel (the preamp Rout is 7R). The HF returned back but sound picked HUGE amount of HF noise - anything at HF was resonating. I presume that the brand new Cubes of the low value should work in there for a while before they should be listened….They were juts too new....

I knew that I would have problems to filter HF at the Milq’s level :-(… In the end, I put back between the stages 2uF of broken-in Cube and placed at the speaker level 3uF of Vitamin Q (the configuration that I’ve been using for years). With this configuration the Super Milq HF channel gave out what I needed from it. I have to note that it has not rally anything to do with what I use to and habituated. It was very problem free sound, having which I would not peruse anything else. In fact it was way better sound then I use to as there was no upper bass coil into the upper FH tone.

Anyhow, then, I thought that in order do not overload the low primary inductance of HF channel I should go for lower coupling cup. I took Cube 950 .047uF and placed it there. The funny part that it, although sounded well, it still got some very remote resemblance of the HF noise that 1000pF had when it was placed at input.  I put it to burn for a couple days to see when it would lead me. So far, the 2uF inner-stage and the speaker-level filter performed absolutely and incontestably the best.

Rgs,
Romy

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