Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

New PassDIY Headphone Amp (now available)
New PassDIY Headphone Amp (now available)
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th September 2017, 07:00 AM   #821
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
If you like the Salas you should try the original Erno Borberly EB602.

http://www.audioxpress.com/article/a...-headphone-amp
index


Patrick
__________________
xen-audio.com
  Reply With Quote
Old 19th September 2017, 02:25 PM   #822
Danger Mouse is offline Danger Mouse  Germany
diyAudio Member
 
Danger Mouse's Avatar
 
Join Date: Nov 2011
Location: beautiful Oberpfalz Bavaria
Quote:
Originally Posted by wayne View Post
Power supply rail Voltages? op amp?




15V Rails, OPA2604, but not your PCB used my own layout #441


Tested without poti, no strange behavior.
...but i need a pot if driven from cd Player directly.
  Reply With Quote
Old 19th September 2017, 06:04 PM   #823
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
New PassDIY Headphone Amp (now available)
Quote:
Originally Posted by EUVL View Post
If you like the Salas you should try the original Erno Borberly EB602.

A Battery-Powered Class A Headphone Amp
index


Patrick
I have never been an audioxpress subscriber but nice to now see that the great Erno had worked along similar lines for an hp amp in the past. It would have saved me lot of head-scratching and several breadboardings in topology experiments to end up near there once again if I knew better. Patrick, thanks for the link I will save it to read later in detail.
  Reply With Quote
Old 19th September 2017, 06:10 PM   #824
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
See also :
https://linearaudio.nl/sites/lineara...nalsMMM508.pdf

As well as the 2nd link above where he discussed with Mr. Tubecad about his preference of active devices.

I spent some months thinking about why he did certain things his way in the EB602.
Very educational.

But we should stop hijacking Wayne's thread.


Patrick
__________________
xen-audio.com
  Reply With Quote
Old 24th September 2017, 03:42 PM   #825
jammer55 is offline jammer55  United States
diyAudio Member
 
Join Date: Aug 2007
Default Boards in DiyAudio store

Hi Wayne,

Do you have an ETA for boards in the store.

Thanks
  Reply With Quote
Old 24th September 2017, 03:54 PM   #826
JPS64 is offline JPS64  Germany
diyAudio Member
 
Join Date: May 2011
New PassDIY Headphone Amp (now available)
Finishing measurements...

JP
Attached Images
File Type: jpg IMG_1513.jpg (597.8 KB, 907 views)
  Reply With Quote
Old 25th September 2017, 08:51 PM   #827
wayne is offline wayne  United States
Auburn
diyAudio Member
 
wayne's Avatar
 
Join Date: Jan 2002
Location: Northern California
New PassDIY Headphone Amp (now available)
Looks great JP but that bench is way to clean.
__________________
wizards assistant
  Reply With Quote
Old 3rd October 2017, 08:30 PM   #828
Morde is offline Morde  Finland
diyAudio Member
 
Join Date: Oct 2014
New PassDIY Headphone Amp (now available)
Yay, I got my Pass Diy headphone amp cased up today. Nothing fancy, just an old tube headphone amp case (modushop) being re-used. Only initial listening going on but it sure sounds promising. The build was quite straightforward without any hick-ups. Thanks a lot to Wayne for all the effort!

I'm using Toshiba FETs (liubincalvin), Nichicon/Panasonic caps and Dale RN60 resistors. The opamp is at the moment LM4562, but I have OPA627 and OPA2132 waiting to be tested. The input caps are now basic Mundorf MKPs, but propably they will get upgraded to Evo Oil versions later on.
Attached Images
File Type: jpg IMG_0663.jpg (718.9 KB, 749 views)
File Type: jpg IMG_0665.jpg (810.6 KB, 752 views)
  Reply With Quote
Old 4th October 2017, 05:59 PM   #829
wayne is offline wayne  United States
Auburn
diyAudio Member
 
wayne's Avatar
 
Join Date: Jan 2002
Location: Northern California
New PassDIY Headphone Amp (now available)
I will be bring some of these boards to burning amp in November as party favors.
__________________
wizards assistant
  Reply With Quote
Old 4th October 2017, 08:26 PM   #830
Variac is offline Variac  Costa Rica
diyAudio Editor
 
Variac's Avatar
 
Join Date: Dec 2001
Location: San Francisco, USA San Josť, Costa Rica
New PassDIY Headphone Amp (now available)
And we'll have a table to audition Wayne's Amp . Bring your headphones if you want to hear how it will sound into them.

I've been remiss in keeping him informed about the show. He will be giving a short talk, 1/2 hr plus 10 min for questions, which will discuss this amp but we hope mostly give some general observations about his approach to audio.

Mark
__________________
"The geek shall inherit the earth"
2018 Burning Amp is Sept 30 in S.F. Thread here on diyAudio:
http://www.diyaudio.com/forums/clubs...francisco.html

Last edited by Variac; 5th October 2017 at 12:02 AM.
  Reply With Quote

Reply


New PassDIY Headphone Amp (now available)Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Testing an amp with dummy load, can hear music coming from inside the amp. ElectroAcoustic Solid State 11 10th December 2014 11:43 PM
Planars dream amp maybe coming soon n3szd Planars & Exotics 8 22nd September 2014 11:12 AM
No sound coming from Amp Shido181 Car Audio 9 1st August 2014 08:05 AM
no sound coming out of amp tony711 Car Audio 4 9th June 2010 06:47 AM
The New Sonic Amp is coming Pano Class D 1 11th November 2005 12:37 PM


New To Site? Need Help?

All times are GMT. The time now is 07:52 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki