Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › PCB mounting for Beta22
New Posts  All Forums:Forum Nav:

PCB mounting for Beta22 - Page 2

post #16 of 22
12/23/09 at 12:21am
Thread Starter 
I've read several times this risk of short while unplugging... I'm not sure I understood why but will adopt a locking TRS just in case...

Thanks again Linuxworks !
Reply
post #17 of 22
12/23/09 at 12:41am
Quote:
Originally Posted by linuxworks View Post
but the locking TRS is a good reminder of 'oh yeah, this equipment needs to be treated differently'
nice idea, until you blow it up by inserting the phones
Reply
post #18 of 22
12/23/09 at 1:18am
you could save space and improve the amp by ditching the "3-channel" and applying well known proper ps routing and grounding practices to 2 boards

dual mono with 2 smaller transformer dual supplies is pretty close to the best that is technically possible

also - although they need more air space or Fe sheilding split bobbin EI have lower pri-sec parasitic C and lower coupling of mains trash than toroids

and yes TRS suck - if you really want the best possible crosstalk # you should use a "balanced" headphone connector that separates R/L channel gnd contacts
Reply
post #19 of 22
12/23/09 at 1:32am
Quote:
Originally Posted by luvdunhill View Post
nice idea, until you blow it up by inserting the phones
Any headphone amp that would blow its brains out from plugging or unplugging the phones I would consider "broken" in to begin with.

se
Reply
post #20 of 22
12/23/09 at 1:35am
Quote:
Originally Posted by jcx View Post
you could save space and improve the amp by ditching the "3-channel" and applying well known proper ps routing and grounding practices to 2 boards
You and your proper PS routing and grounding practices!

You're such a wet blanket!

se
Reply
post #21 of 22
12/23/09 at 1:47am
Thread Starter 
Quote:
Originally Posted by jcx View Post
....
and yes TRS suck - if you really want the best possible crosstalk # you should use a "balanced" headphone connector that separates R/L channel gnd contacts
I'm already aware of that but don't wanna go balanced for now... to much of a hassle recabling my cans.

I will always have the possibility to add a 4th board to my b22 and make it balanced... but sincerely hope to end my quest of pure sound before that !
Reply
post #22 of 22
12/23/09 at 1:52am
Quote:
Originally Posted by LeMat View Post
I'm already aware of that but don't wanna go balanced for now... to much of a hassle recabling my cans.

I will always have the possibility to add a 4th board to my b22 and make it balanced... but sincerely hope to end my quest of pure sound before that !
Well, you can get away from the TRS issues without going balanced. You'd still have to reterminate and/or recable, but you don't have to go balanced.

se
Reply
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › PCB mounting for Beta22