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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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In Reply to: RE: phono noise floor posted by Eli Duttman on February 23, 2015 at 21:56:26:
Thanks Eli. I've cleaned the pots thoroughly. My expectations in terms of noise floor are in relation to other systems I've heard. While it's tough to measure accurately I'm getting something around 40dB difference between the music level and white noise - 95dB music and 55dB white noise or so on an SPL meter - and the white noise is significantly louder than any hum. I usually don't listen anywhere near that loud, and from the listening position it's lower, but it's clearly audible and I've heard significantly better from other vintage setups and I'm suspecting something is not quite right - cathode resistors? Bypass caps? I will have a look into the lps tubes as well. I do use the different eq's and I like that about the 130, but perhaps I'll try to build your RCA phono as a stand-alone, I've often thought about doing that at some point.
Dave
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Follow Ups
- RE: phono noise floor - David Smith 22:14:41 02/23/15 (2)
- RE: phono noise floor - Eli Duttman 22:35:59 02/23/15 (1)
- RE: phono noise floor - David Smith 22:37:28 02/23/15 (0)
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