Amp/Preamp Asylum

Yes, the filter is very useful.

76.90.100.230

Tre'

In Reply to: RE: I had to sleep on this one posted by Cougar on December 17, 2024 at 16:18:30

More than using it for break in, it can be used to check the accuracy of the phono pre if you are confident with the accuracy of Jim's product. Pink noise and a spectrum analyzer and, if both are right, you should see a straight line.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

Follow Ups:

I had Jim's "FILTER"... - Cougar 15:29:18 12/18/24 (1)
connected from after the Streamer > Filter > Phono Preamp > Preamp. I listen off and on for about 4 days and by the last day, it was sounding really nice and just like I was playing the streamer through my tube DAC. So I guess his filter works pretty good. This why I was sharing my experience with and recommending it.
- I believe that while Tre' does have a point - 1973shovel 06:39:40 12/19/24 (0)
  ...the real bastardization started back in the 1950s by whoever was responsible for first naming the RIAA curve filter in phono preamps a filter, rather than an "inverse filter".
  
  Electronics and our hobby have more than a few of these, which can be quite confusing at first, at least until we accept them "as is". Fixed bias of many tube amp's output tubes is anything but fixed, for example. I'd have called it "user adjustable bias" but then I'm not in charge of such things.
  
  One of my personal pet peeves is the term monoblocks, or the more pretentious French 'monoblocs' which some guys write. They're mono amps, thank you very much, but again, I'm not in charge. I find that adding "Blocks" is block-headed, but I'm sure not going to swim against that tide of of tradition every time I see someone write 'block'.
  
  You simply repeating the name of what Jim Hagerman calls his product was acceptable, in my opinion. Hagerman naming his filter "inverse", while technically incorrect in the truest sense, is also correct in that it's the inverse of the inverse filter inside every modern phono stage.

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