Audiotrak Prodigy Cube - OPAMP replacements
Mar 4, 2012 at 7:26 AM Thread Starter Post #1 of 6
soulreaver1

soulreaver1

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Hello,
I've read on Audiotrak community pages that possible replacements for Audiotrak Prodigy Cube are: OPA2228P, OPA2132P, OPA227P. Unfortunately they didn't said how's affecting on sound. It would be great to get some info here, from you :). 
 
 
Apr 4, 2012 at 1:03 AM Post #2 of 6
I currenly use the LM4562. Very good dynamics and clear sound.
I tried OPA627 but my ears did not like it. Its sound was not brilliant as I expected. I would define it "boring" :)
 
Feb 12, 2014 at 1:06 AM Post #3 of 6
Well, I tried the OPA627 and just did not work.  The channels had huge imbalance.  The power was really low.  It sounded like listening to a cell phone *without* headphones, on their tiny speakers.
 
I can only assume that I bought a broken sample of OPA627 on ebay? :frowning2:  It was not just I did not prefer it.  It was really "broken".
 
Suggestions on what to try for op amp rolling... and where to buy the chips are most welcome.    
 
Mar 8, 2014 at 4:49 PM Post #4 of 6
So... I tried the Muse op-amp.  It makes a big difference.  The sound gains greater clarity... by  a big margin. :)
 
However, I feel that the audiotrak cube "requires" more power with the Muse op-amp.  Using a 2-feed cable it sound awesome.  With a regular 1-feed cable, it sounds analytical, very slim body.
 
That said, using a 2-feed cable is a clear cut improvement.  A $15 improvement that is definitely worth it.  Recommended!!
 
Mar 8, 2014 at 5:27 PM Post #5 of 6
The LM4562 gives a nice detailed, but digital sound. It's OK for a warm amp/headphone/speaker set up. If you prefer a warmer sound then the AD826 is the one to pick. It is also better in handling difficult RCA cables. It is also better in controlling sibilance compared to the LM4562. The OPA type opamps didn't perform as well as the LM4562 and AD826 from my trials.
 
Oct 20, 2016 at 9:35 AM Post #6 of 6
walfredo said:
  So... I tried the Muse op-amp.  It makes a big difference.  The sound gains greater clarity... by  a big margin. :)
 
However, I feel that the audiotrak cube "requires" more power with the Muse op-amp.  Using a 2-feed cable it sound awesome.  With a regular 1-feed cable, it sounds analytical, very slim body.
 
That said, using a 2-feed cable is a clear cut improvement.  A $15 improvement that is definitely worth it.  Recommended!!
Click to expand...

Where do you get that cable ? It's kinda hard to get in my country, well, at least I haven't found it.
 
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