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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: BAT VK-30. preamp. nt. posted by Cougar on January 23, 2015 at 15:16:05:
To properly calc. the corner freq., you'll need to include the output LOAD ? of the preamp with the input z of the amp(13K).
Both resistance values would be in parallel. Depending on the output topology (Cath. Foll. or Grounded Cath.) that could be a few Kohms. (1K to 1Meg)
1
1/R1 + 1/R2
When a tube pre (BAT VK-30) is used to drive a SS amp, you can remove the input coupling cap. from the SS amp as the tube pre already has one. Some have OPTs after the tube stage. Redundant coupling caps do not work well at all.
I suggest posting your query of impedance matching and topology on Amp/Pre.
Mention the BAT # in the subject and Victor will fill in the blanks. :-)
Hope this helps.
Cheers,
W
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Follow Ups
- RE: BAT VK-30. preamp. nt. - wheezer 01/23/1516:47:14 01/23/15 (5)
- The BAT VK-30 preamp has... - Cougar 17:08:49 01/23/15 (4)
- RE: The BAT VK-30 preamp has... - wheezer 17:54:44 01/23/15 (3)
- where did you get... - Cougar 19:16:42 01/23/15 (2)
- Try this.... - wheezer 10:35:09 01/24/15 (0)
- RE: where did you get... - wheezer 20:43:31 01/23/15 (0)
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