|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
74.130.29.193
In Reply to: RE: In spite of the potential advantages that a battery supplied phono preamp could have... posted by EdAInWestOC on October 06, 2015 at 04:21:14
I believe the main advantage of battery power is in its cost savings. It often costs more to produce an AC power supply that performs as well or better than a battery power supply, especially for components that require very low power like phono stages and DACs. Small sealed lead-acid batteries are very economical. I significantly improved the performance of the original Audio Alchemy DAC-In-The-Box by replacing its wall-wart power supply with a sealed lead-acid battery. I suppose I could have built or purchased a higher performance AC power supply, but the battery was a lot cheaper and I used the wall-wart to charge the battery.
Best regards,
John Elison
Follow Ups:
Put a film cap across the battery terminals, ideally on the inside of the AA DAC-In-The-Box case, near where the DC is fed. 40uF, say, if you can fit it.
Regards,
Andy
Honestly, Andy, it has been at least 20 years since I used a DAC-in-the-Box. I've graduated to hi-rez digital along with truly high-end DACs. They no longer require battery power supplies.
Thanks,
John Elison
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: