|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
107.219.248.248
Hi,I have a combined DAC/headphone amp which has responded well to a battery + capacitor connected to the analog side of the box. Do you think it would benefit from an additional battery on the digital outputs, and indeed on the headphones themselves? The reason I ask (and don't actually do it) is that I am not very technically gifted. I don't have spare parts lying around to experiment with, and I am particularly ham-fisted with a soldering iron. It's a major undertaking for me to get this type of thing done... but I'm a trier!
I'd be grateful for any advice or comments. Thanks for looking.
DE
Edits: 08/06/15Follow Ups:
Deaf Ear,
This may be of some help?
See link:
~D
Wherever you go there you are.
Ooh. Thanks ipdtt.
I just need to get going and do some stuff. I only have cause to pick up a soldering iron every five years-or-so (and that's only for one-or-two connections) so I never get the chance to reach proficiency. These videos should help.
Thanks muchly!
A BGT on the headphone would be superb.
I build boxes with the caps and batteries and attach a headphone jack to it, sorry no pictures at the moment. The headphone BGT raises the level of the headphones to at least the next model up, IMHE.
A BGT on the digital inputs will help too, but not as much as the Headphone BGT, in terms of priorities. If no BGT on the source component, then it will make a noticeable difference.
I often build the BGT right into the digital cable
Which battery-type could you recommend because in Germany lantern-type with 9 v is not available. Could I take lantern-battery with 6 v or the small blockbattery with 9v?
I use the standard 9V battery measuring about an inch wide by 2 1/4 inch tall. Bigger batteries (physically) have greater amperage for higher current drain, but all we are doing here is charging the capacitor. It may take a few minutes to build up the initial charge, but there is no significant drain on the caps as the positive is not hooked up to any work (unless you are using very leaky caps!)
Excellent information! Thank you sir. Your generosity and willingness to share is very much appreciated!
DE
If you take an ohm or continuity tester and measure from RCA ground on the outputs to all the other RCA grounds I think you'll find common ground/continuity to all the RCA grounds. That means they are not isolated. Theoretically that means adding another battery/cap won't help but I think I remember Stu saying sometimes more even on the same ground/circuit do help. I'm sure he'll chime in. I like that the unit has a two prong AC IEC inlet because safety ground is a noise antenna. Good luck!
E
T
Edits: 08/06/15
Thanks Awe-d-o-file,
I cobbled a continuity tester together from a flashlight and some alligator-clip leads that I had lying around. It has a common ground, right enough.
DE
Cool, it looks like a nice unit. Keep on Tweakin'!
E
T
Thank you, I will!
This is the back.
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: