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If I put my notes here, I might be able to find them again later!
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The new system, up and running.

Posted 22nd January 2012 at 10:52 AM by rjm
Updated 25th January 2012 at 07:57 AM by rjm

So now we have the model 0247 DAC/preamp/headphone amplifier and model 0347 power amplifier in the main system. That's the old Denon DP-2000 TT, Phonoclone 3, and Onkyo D-605SR speakers.

The gain of the 0347 is 30 dB, so with the 0247 doing duty as a preamp the overall gain is a tad high, but it's perfectly useable. I'll look at the passive preamp options (including the model 0447) at a later date.

Anyhow, the big news is it completely destroys the non-inverting LM3875 Gainclone I have been using for the last decade, so badly, in fact, I'm starting to wonder if my Gainclone was busted. In comparison with the 0347 it sounds like a distorted, uncontrolled mess.

Since my speakers are really very modest in quality (though at 82dB and 6 ohms, a bit of a rough load) I wasn't expecting much difference one way the other, so this comes as a severe shock.

Unfortunately I'm not within reach of a good reference system to give the 0347 a real evaluation. It sounds good, but exactly how good, and what, if any, liabilities it might have will have to wait for others to check out and report on. Headphones, I can do. Good speakers and a decent listening room, given my present situation (kids and a Japanese house!!), are out of my reach.
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Total Comments 1


  1. Old Comment
    Good speakers... are out of my reach.
    This kit of the LS3/5A can be a good option. Please 'click' in the link 'ebay':


    Click the image to open in full size.Click the image to open in full size.

    Best Regards
    Posted 1st September 2013 at 05:19 PM by raul_77 raul_77 is offline
    Updated 1st September 2013 at 05:25 PM by raul_77
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