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Old 23rd March 2012, 12:01 PM   #1
diyAudio Member
Join Date: Mar 2012
Default Better analog or digital audio?

hello all,

I have the possibility to connect the following:

Amplifier: Yamaha DSP-A1 which uses AK4324 for DAC and UPC4570G2 as an OP-AMP

CD1: Marantz CD67SE using SM5872 as a DAC and NJM2114 as OP-AMP
CD2: Marantz CD4000 using TDA1545 as a DAC and NJM 4560D as an OpAmp.
CD3: Philips CD692 using a SAA7341 as a DAC and LM388 as a final amp.

I can connect both analog or digital (SP/DIF).

Which CD is better and what way is it better to connect (analog or digital)?

If I connect digital then the DAC of the Yamaha is used (AK4324). If I connect analog, then the DAC of the CD player is leading.


Last edited by haik; 23rd March 2012 at 12:53 PM. Reason: corrected CD2 DAC and Op-Amp. Added CD3
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Old 23rd March 2012, 12:26 PM   #2
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Join Date: Aug 2002
Location: Cascais
CD2 by all means. Any designer who manages to use a TDA1545 as an opamp is a borderline genius

But more seriously, chip sets are only partly responsible for sound quality. Would be nice if it were that simple but it ain't.
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Old 23rd March 2012, 09:00 PM   #3
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Join Date: Jan 2008
Location: Virginia
Originally Posted by analog_sa View Post
But more seriously, chip sets are only partly responsible for sound quality.
The issue is that the part is like 90%... So it matters a lot.
Unfortunatelly they are all losy DAC's and OpAmps. Slightly better is the AK4324...

Last edited by SoNic_real_one; 23rd March 2012 at 09:06 PM.
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Old 6th April 2012, 11:39 AM   #4
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Join Date: Mar 2012
OK, I repaired the CD4000 (used an old laser from a Philips which was found at the local garbage dump).

I ordered through e-bay the DAC kit.

I will install it in the CD4000 (lot's of room to spare), and compare the difference with original DAC and the new one, and also the DAC used in my Yamaha DSP-A1 (AK4324).

I will post the results.

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