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.

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
Thread Tools Search this Thread
Old 27th February 2007, 06:09 PM   #1
MashBill is offline MashBill  United States
diyAudio Member
MashBill's Avatar
Join Date: Jun 2004
Location: Kansas, USA
Default DACs?

What are my fellow "Pass Heads" using for their DAC? There seems to be much discussion here about amplifiers and preamplifiers, but not much about DACs. I would like a Pass-designed source to go with the rest of my Pass-designed equipment.


  Reply With Quote
Old 27th February 2007, 06:11 PM   #2
Manu is offline Manu  Europe
diyAudio Member
Manu's Avatar
Join Date: Nov 2002
Location: Vienna, Ostrich
Me too
  Reply With Quote
Old 27th February 2007, 06:48 PM   #3
hifimaker is offline hifimaker  United States
diyAudio Member
hifimaker's Avatar
Join Date: Oct 2003
Location: San Jose
I've been using an Adcom GDA-750 for a few years. It's a balanced out DAC using BB1702 chips. It is a terrific DAC and can be purchased used for about $250. Evertyhing else I've compared it to is not as good, slightly better, or about the same. This is of couse limiting content to 20 bit material, which is the resolution of the chip.

I'm in the throughs of building a new DAC based on the AKM4396. I've picked-up an eval board and now experimenting with bypassing all the 5534D opamps used as low-pass filters with discrete jfet buffer and filter per channel.

The new delta sigma DAC's are mostly voltage output. There are very good reasons for this as the I/V can be very challenging to develop correctly. There are of course the BB179X or AD195X chips which are current output.

Nelson's contribution was to release his D1 I/V stage which was used in his R2R DAC chip based product. The D1 I/V is really a great design and valuable contribution to the DIY community.

I've seen a number of designs on DIYAudio.com for DAC's that do not have a low-pass filter to reduce all the out of band noise beyond the audio range. It is correct in that you cannot hear it, but the tweeter is forced to deal with it and can more easily over heat and color the sound.

  Reply With Quote
Old 28th February 2007, 10:43 AM   #4
wuffwaff is offline wuffwaff  Netherlands
diyAudio Member
wuffwaff's Avatar
Join Date: Aug 2001
Location: Ingolstadt Germany

Im using a DAX-BOSOZ


een ooievaar is geen konijn want zijn oren zijn te klein!
  Reply With Quote


DACs?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
12v Reg PSU for Dacs Wella Digital Source 1 6th December 2005 08:20 AM
Usb Dacs bjackson Digital Source 4 10th August 2005 10:14 PM
USB DACs again Adam Reed Digital Source 5 5th February 2004 08:00 AM
ti dacs skaara Digital Source 20 16th November 2002 11:58 PM
Audio DACs, Instrumentation DACs. Brian Guralnick Digital Source 10 3rd November 2002 05:56 PM

New To Site? Need Help?

All times are GMT. The time now is 03:12 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio