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Battery Power Supply Yes_ or No_

It seems to me that a phono stage is at a greater risk to noise than any other gismo in a system.  Mine makes a slight hum, and I am considering saying "la byby" to it.  Some years ago Sutherland sold a phono stage that was battery powered.  The theory being that this arrangement would substantially lower the noise floor.  I am considering a Project phono stage that uses a 18 volt wall wort for a power supply.  It is a metaphysical certainty that some noise will creep up that power cable.  So my concept is to wire 3 small industrial 6 volt batteries together, such that they produce 18 volts, and chuck the wall wort..  I think most people who post here are further down the knowledge trail than I am.  I hope some of you will share your wisdom regarding the above.  Gratzi, in advance for your thoughts.
alwynlarryv
noromance's avatar
noromance
9,829 posts
 
Why not hang a big cap across the battery? 
zipost's avatar
zipost
197 posts
 
noromance.... what is the benefit of strapping a big cap do.  Please advise the logic or benefit of doing this?  
mkgus's avatar
mkgus
324 posts
 
Hey, it’s Zipost! I need to give him a shout-out. Zipost was absolutely instrumental with integrating batteries into my system. Very knowledgeable. He even hand-built me some parts that I needed. My system has never sounded better! Thank you, thank you, thank you!
noromance's avatar
noromance
9,829 posts
 
@zipost It was more of a rhetorical question seeking an answer than an answer itself. But wouldn't a capacitor increase the speed and recovery of the power supply?
zipost's avatar
zipost
197 posts
 
@alwynlarryv.... your ideas are great, excellent approach and well thought! But it needs to be implemented and executed correctly.

Yes.....for sure will be a Big improvement if you can implement both the regulator & battery correctly. I recommend using only 24v lead acid battery for your application. The results are amazing; the sound can be described as extremely organic ( better imaging, bigger sound stage and overall better tonality).

No....The cost will be dramatic ( charger, regulator & battery) expect to cost more than the actual phono stage. I don’t recommend lithium, nickel cad, LiPo ( they all sounds really bad) that is due to BMS ( battery management systems built in the battery).   Your threshold is at 18v, you Shouldn’t series the battery, use a single 24v for Ultimate results ( pure and simple).   With phono stage application ( low signal & sensitive to noise) extreme implementation and execution will give you an awesome experience and one amazing sound quality.   Let me know if you have any questions, ideas, or suggestions.  Happy Listening!
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