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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: Battery Powered Phono PreAmp Dynamics posted by Schlep on October 5, 2015 at 07:59:36:
A battery tends to have a higher effective series resistance, and a little hysteresis and dropping voltage with loss of charge that has to be designed around. So just putting a battery as a supply with no considerations, could impact dynamics.
If you put in some regulation circuitry with something to make sure the rail doesn't droop with fast or deep current draws, there shouldn't be a giant difference. But ... you are building a power supply to handle the battery, and they have their own issues. In some cases it might be easier to design a quiet power supply (Sutherland seems to be moving in this direction)
Nothing is free, it's all tradeoffs!
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Follow Ups
- RE: Battery Powered Phono PreAmp Dynamics - Bromo33333 10:32:15 10/05/15 (3)
- Mmmm ... so a phono stage drawing, say, 100ma is likely to cause the DC rail to droop? ... - andyr 02:45:23 10/07/15 (0)
- RE: Battery Powered Phono PreAmp Dynamics - hahax@verizon.net 20:15:28 10/05/15 (1)
- RE: Absolutely correct! The issue is ... - andyr 02:49:54 10/07/15 (0)
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