Why not batteries instead of power supplies?

I read about issues with power supplies, like noise from AC outlets, ripples in voltage etc.

Why not just use a large battery that can be recharged? If batteries can power cars, they can for sure power amplifiers.

defiantboomerang10-07-2017 4:37pm

Showing 2 responses by larryi

larryi Details Discussions Posts This discussion Message User 4,189 posts 10-10-2017 at 12:44pm Copy Comment URL Report Comment Edit Delete I heard a system with the Veloce linestage and it sounded quite good. I have no idea how it would compare with an otherwise identical model running off of a conventional supply. I have also heard an ultra expensive version of a preamp that is quite similar to mine (same builder), but it ran off of a large battery pack. It too was very nice sounding, but, it had to be recharged quite often. It, like the Veloce, is a tube unit. I saw pictures of a DIY tube phono stage with a battery power supply that was the size of a large refrigerator; all in the name of extremely low output impedance. I would think that battery power would make even more sense with solid state where there would be far less draw at idle.
larryi Details Discussions Posts This discussion Message User 4,189 posts 10-11-2017 at 12:34pm Copy Comment URL Report Comment Edit Delete Kosst, Use of a massive bank of capacitors does sound very interesting. Have you tried this approach yourself? Also, are they suited for constant drain (I thought they were primarily used where fairly rapid cycling is involved)?

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