Great, I look forward to trying it... (BD-Design)

by Cappy , Tuesday, February 12, 2008, 21:38 (5918 days ago) @ Bert
edited by unknown, Tuesday, February 12, 2008, 22:01

Bert,

What do you mean by a bipolar 100uF cap? Electrolytic so as to be cheaper?

There are 100 uF film caps about albeit they kind of expensive. I guess one could get a cheaper electrolytic (if that is what you mean) and once one is happy with the bass filter swap it out for a film cap or caps.

Also, I wonder how using a few 47 uF film caps doubled up would work? Have you ever tried that? Diy HiFi Supply has some nice sounding Obbligatos for $16.75 U.S. each.

Regarding the inductor -- you show <0.5 for the DCR. Is lower better? I see a Solen 3.6 mH 12g with a DCR of 0.47. Northcreek can wind a 0.33 ohm one but it would be more expensive.

Also, for my current bass filter I am using an air coil inductor. These work well for midrange and treble, but I think it is holding my bass back a bit. The next one I get won't be air coil.

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General passive-line level filtering issues. - Bert, 2008-02-11, 11:11
- General passive-line level filtering issues. - madprofessor, 2008-02-11, 13:04
  - General passive-line level filtering issues. - Bert, 2008-02-11, 13:21
    - General passive-line level filtering issues. - madprofessor, 2008-02-11, 13:24
  - General passive-line level filtering issues. - Cappy, 2008-02-11, 20:07
    - General passive-line level filtering issues. - Cappy, 2008-02-12, 08:51
    - General passive-line level filtering issues. - PeterSt., 2008-02-12, 09:53
    - General passive-line level filtering issues. - Bert, 2008-02-12, 10:48
- I'm glad to help any way I can. nt - samoore, 2008-02-11, 19:43
- Okay, the first one... - Bert, 2008-02-12, 10:30
  - Okay, the first one... - madprofessor, 2008-02-12, 20:04
  - Great, I look forward to trying it... - Cappy, 2008-02-12, 21:38
    - Great, I look forward to trying it... - Bert, 2008-02-12, 22:18
      - Thanks, One More Question - Cappy, 2008-02-12, 22:36
        Thanks, One More Question - Bert, 2008-02-13, 09:59
        Interesting - Cappy, 2008-02-13, 18:49
        Interesting - Bert, 2008-02-13, 19:54
      - Meant copper foil - Cappy, 2008-02-13, 02:08
        Meant copper foil - Bert, 2008-02-13, 09:57
  - U.S. Sources I Checked Out of the Inductors - Cappy, 2008-02-22, 06:59
    - U.S. Sources I Checked Out of the Inductors - Bert, 2008-02-22, 07:14
      - U.S. Sources I Checked Out of the Inductors - Cappy, 2008-02-22, 19:08
        LCR meters come relative cheap... - Bert, 2008-02-22, 19:39
        I just did... - Bert, 2008-02-22, 20:45
- General passive-line level filtering issues. - Tom Russell, 2008-02-18, 12:53
  - General passive-line level filtering issues. - Bert, 2008-02-18, 21:35