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Amp/Preamp Asylum Looking for a new Amp or Preamp? If you're after tubes, post over here. |
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I've got a homemade pre-amp based around a board designed by Stan Warren, and after upgrading the chassis and volume pot, I've got some serious buzz in the left channel. I suspect it's a problem with the now 18 year old board, so I'm thinking of just taking the board out of the circuit, and going passive.
Here's my concern: I'm big on my vinyl, and I'm concerned about whether my phono stage can drive the amp. My phono stage is a Sonic Frontiers SFP-1 Signature, which has an output impedance of 1K Ohms. My cartridge in a 2.5 millivolt Blackbird, and calculating the 37 dB gain, that puts the output at ~1.8V. My amp is an Adcom 5400, with an input impedance of 49.9K, and the volume pot is a 25K Goldpoint.
Think it'll work?
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Topic - Thinking of going passive, and need advice - cdrayson 04:45:30 03/25/15 (19)
- RE: Thinking of going passive, and need advice - bigmoose 14:03:28 04/06/15 (0)
- RE: Thinking of going passive, and need advice - SgreenP@MSN.com 13:58:33 03/27/15 (1)
- Try thinking of passive in a different configuration... - stehno 00:55:46 04/01/15 (0)
- RE: Thinking of going passive, and need advice - soundsalot 13:10:36 03/27/15 (0)
- RE: Thinking of going passive, and need advice - dvb 10:30:14 03/26/15 (0)
- Keep the interconnect cable short - Ralph 14:04:24 03/25/15 (1)
- RE: Keep the interconnect cable short - bigmoose 16:09:55 03/25/15 (0)
- RE: Thinking of going passive, and need advice - BCR 14:02:04 03/25/15 (8)
- RE: Thinking of going passive, and need advice - Palustris 10:46:07 03/26/15 (7)
- RE: Thinking of going passive, and need advice - BCR 11:05:31 03/26/15 (6)
- RE: Thinking of going passive, and need advice - Ozzy 01:18:19 03/27/15 (1)
- RE: Thinking of going passive, and need advice - BCR 03:44:46 03/27/15 (0)
- RE: Thinking of going passive, and need advice - Palustris 12:08:57 03/26/15 (3)
- RE: Thinking of going passive, and need advice - BCR 12:33:27 03/26/15 (2)
- RE: Thinking of going passive, and need advice - Palustris 12:37:00 03/26/15 (1)
- RE: Thinking of going passive, and need advice - BCR 12:46:30 03/26/15 (0)
- RE: Thinking of going passive, and need advice - Dman 13:55:53 03/25/15 (0)
- RE: Thinking of going passive, and need advice - fantja 13:49:40 03/25/15 (0)
- RE: Thinking of going passive, and need advice - Palustris 10:27:31 03/25/15 (0)
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