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Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
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In Reply to: phono noise floor posted by David Smith on February 23, 2015 at 20:15:19:
I have a 299A which has essentially the same preamp section. I agree with the other posters regarding the switches. Once I bypassed the mag selector as well as the noise and rumble filters, it helped a lot. On my unit, I have to turn the volume to max to hear much noise and it isn't much.
With the stock set up using 12AX7 tubes, the stage seems happiest with a moving magnet cartridge with an output of ~5mv. I've used a Shure VxMR at 3mv but the gain of the phono stage is a bit borderline for that. I am wondering if your problem is related in some way to your SUT setup and the interaction with the amp.
By the way, I am not using fancy tubes in my phono stage....just plain JJ ECC803S. No hum.
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Follow Ups
- RE: phono noise floor - dadbar 07:47:23 02/24/15 (1)
- RE: phono noise floor - David Smith 09:48:29 02/24/15 (0)
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