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In Reply to: RE: Improved Regen sound posted by jkeny on November 22, 2015 at 13:43:48
jkney,
So, those of us who have DACS, like my Auralic Vega, which requires a 5 Volt
Hand Shake for turn on only, then NO 5 Volt through the USB cable, will still need to use the external power supply and the bypass battery?
I am currently using a very nice power supply into the Regen;s stock power input connection. This supply made an obvious sonic upgrade to the Regen,s performance. So, am I correct that I will need the addition of the ground and 3.3V connection to bypass the stock regulator?
Lance A.
Follow Ups:
I believe at least some percentage of the improvements reported with the Regen are due to a cleaner 5V supply into audio devices that use the 5V (even for just signalling).If you can disconnect the 5V after your Vega handshakes with the Regen & everything operates fine then why not proceed as follows:
- connect the LiFePO4 battery as I suggested
- power your Regen with your PS as usual
- when handshake established with Vega, disconnect your PS to the Regen (leave battery connected)If you want a procedure that requires less manual intervention, you can get one of the USB solutions that provide external 5V substitution for Vbus (like Aqvox) or go the DIY route & provide 5V to the correct pins on the Regen's USB out
Edits: 11/23/15
Am having difficulty getting 5 volts to my battery operated Regen. Did you ever listen to a Regen with battery and the 7.5 Volts power plugged in. Is it that much of a degradation in sonics?
Edits: 11/24/15
No, I've never tried that config - battery powered Regen + Regen being powered from DC input.
Your config is:
- battery powered Regen
- feeding another Regen which is DC powered
My conjecture was that bypassing the regulators in the battery powered Regen either reduced low frequency noise and/or improved the transient response of the PS.
So putting a DC input powered Regen after the battery powered one MAY work against these improvements of the battery powered Regen.
But I could be wrong!
My REGEN worked when fed with 5 volts. I didn't realize that the power source was only outputting 5 volts so I wasn't looking for a sound quality difference, but if there was one it certainly didn't jump out. (This is with an unmodified Regen.)
If you have multiple devices wired into a chain between the computer and the DAC there are lots of combinations to try! More combinations than time, ...
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
It may output signals but certainly the TPS regulators won't work properly unless yours are seriously out of spec.
This is exactly the clarity of advice that I was hoping for. As I design and build all of my own cables I use a dual Type A USB cable. Once the hand shake is establish, then I disconnect the 5 Volt connection via the one USB Type A leg. Makes for a substantial sonic upgrade.
Any specific gauge of wire suggested for the 3.3 Volt/Ground connections to the battery supply? I assume that you simply make a small cable hole through the Regen's case and then return it's case to it's original position?
Last, As I was not around for the original discussion about the battery supply recommended, can you please tell me what battery supply to purchase and possibly where to make purchase?
Thanks a bunch.
Lance A.
I'm suggesting testing this first with whatever wire you want to prove it's sonic value
Figure out how best to case it back into it's original casing later
You will have to read through this thread - all the information about battery type & where to buy is in there
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