Modding a XR45: adding USB port. - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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 10th February 2004, 12:40 PM   #1
diyAudio Member
Join Date: Feb 2004
Location: Spain
Default Modding a XR45: adding USB port.


I plan to mod my panasonic XR45 digital receiver. My main goal is to get rid of jitter.

I want to add a USB port to the panasonic by just putting a M-Audio Sonica USB ( inside and wiring the SPDIF line out of the Sonica to the AKM 4114 spdif receiver in the panny. I would bypass optical/coax.

Do you believe this would reduce jitter? (as there would be no optical/coax cables involved)


  Reply With Quote
Old 18th October 2004, 03:20 PM   #2
diyAudio Member
Join Date: May 2002
Location: Madison, WI

Any success witht this project yet? I've got a couple of XR10s, and I'm really intrigued by all of the PC-audio activity lately. TIA - Pat
  Reply With Quote
Old 18th October 2004, 03:25 PM   #3
diyAudio Member
Join Date: Feb 2004
Location: Spain

At the end the Sonica is not very reliable under heavy CPU load. The USB interface in the PC gets hit and the audio gets choppy, so I left with the impression that USB 1.1 is not enough for sound.

I have one space SA-XR25 (in addition to the XR45) and I already got all the parts to make: High Resolution Multi-Channel Digital Interface

Now I just need time!

  Reply With Quote
Old 30th October 2004, 12:36 PM   #4
raxy is offline raxy  France
diyAudio Member
Join Date: Oct 2004
jitter takes places on the spdif portion of the path,
you'd better try to output the classical LRCK,SDATA,CLOCK signals before the spdif line driver of the sonica.
Connecting the out clock of the sonica to the pany's will eliminate jitter by construction.
  Reply With Quote
Old 1st February 2006, 04:21 PM   #5
diyAudio Member
Join Date: May 2002
Location: Madison, WI
I'm still thinking about this. I'm using a Squeezebox via coax to the XR10 now, but I'd like to add a USB-in to the receiver and go directly from the computer to the receiver.

So, is it as simple as just adding a USB-I2S board, such as the dddac, and wiring the I2S outputs to the Equibit board, as outlined in this post:

or is more required, such as additional logic or other conversion steps?

I'm a newbie with regard to this stuff, but I'd appreciate any advice that anyone could offer.

Thanks - Pat
  Reply With Quote


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with Pan XR45 / DCX2496 configuration ultrachrome Class D 3 26th November 2005 08:52 AM
Adding Vol Port to this LM3886 Circuit! FREQUENCY Chip Amps 12 12th March 2005 09:08 AM
Panasonic SA-XR10 vs SA-XR45/70 Snoodge Class D 1 16th December 2004 07:17 AM
Adding a Port to my enclosure Maples Multi-Way 6 26th July 2004 06:29 AM
Adding a port Howard Multi-Way 35 15th August 2003 09:06 PM

New To Site? Need Help?

All times are GMT. The time now is 02:31 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2