Arcam Alpha One CD mods - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

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
Reply
 
Thread Tools Search this Thread
Old 13th August 2013, 08:39 PM   #1
diyAudio Member
 
Join Date: Mar 2006
Location: Sheffield, England
Default Arcam Alpha One CD mods

This is a very different player to the original Alpha which is a TDA1451A player, the "One" uses the PCM1710U DAC and a KSS240A transport with CXD2500BQ decoder. These were the cheapest Arcam player when new (I believe the Alpha 7 - non SE - is the same player) and are available for very little cost now.

Has anyone done any expensive modding to these? They use the same DAC as the Rega planet which is well regarded, however the One uses 2114D op-amps for the output stage. I plan to upgrade all regulators (currently 6x 317/337) and re-clock. I have found a reference to a diode mod for the 1710 DAC but don't know what it is yet.
  Reply With Quote
Old 14th August 2013, 11:41 PM   #2
diyAudio Member
 
ticktock's Avatar
 
Join Date: Dec 2006
I don't know the Arcam, bit I'd go the usual route:

- separate PSUs
- larger and low ESR PSU caps
- fast soft recovery diodes / Schottkys
- better opamps
- better decoupling caps (Oscon for digital, Pana FC/Silmic/Rubicon for analog)
- better filter caps (film-foil, Wima FKP2 and FKP3)
- mute transistor delete
- clock

I did most of these on my NAD522 which has the same PCM1710.
__________________
thanks
Blaue Leuchtdioden machen blöd. (hb)
quod licet iovi, non licet bovi
  Reply With Quote

Reply


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
Arcam alpha 8 amp - mods? markmark Solid State 0 11th June 2013 08:32 AM
Arcam Alpha mods SimontY Digital Source 533 11th January 2013 03:02 PM
Arcam alpha 5 amp mods tomst Solid State 1 5th March 2012 02:42 PM
Arcam Alpha 5 cd schematics and mods wanted Chivvyp Digital Source 5 21st March 2010 10:36 AM
Arcam Alpha 5 CD Player paulcurrie Digital Source 0 31st January 2004 12:47 PM


New To Site? Need Help?

All times are GMT. The time now is 06:36 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2