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Elektor audio DAC 2000
Elektor audio DAC 2000
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Old 12th July 2019, 08:12 PM   #11
jean-paul is offline jean-paul  Netherlands
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PMA60 has 0.07% THD at 25W @ 8 Ohm....

Output power 8 Ohm (20 Hz - 20 kHz, T.H.D. 0.07%)
25W (1kHz)

Output power 4 Ohm (1 kHz, T.H.D. 0.7%)
50 W

One must be a rather hardcore listener to be able to listen at 25W sound level. Anyway, tailgunner you might listen to this amp in a shop. Maybe you will like it, maybe you don't. I stopped using DACs as I jumped on the FDA bandwagon. I like the simplicity of FDA and I don't have analog sources anyway. No expensive potentiometers and relays anymore as stuff is handled in the digital domain. Of course it is not ideal as feedback is a design challenge but it has a lot of positive features. It is spacial and relaxed, let's say it is musical.
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Old 12th July 2019, 10:51 PM   #12
miro1360 is offline miro1360  Europe
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THD is tricky, the function has any constant growth ... you have to look at the whole chart (PMA-60 THD chart not found) ...
... it brings the idea to consider SPL in different speakers (in a living room, 1W on stereo speakers with SPL 88 have a similiar loudness as 0.35W on another speakers with SPL 93 ... THD will be different at the same listening level)

TDA8950
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Last edited by miro1360; 12th July 2019 at 10:55 PM.
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Old 12th July 2019, 11:01 PM   #13
jean-paul is offline jean-paul  Netherlands
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It measures and sounds nice. It plays everything I throw at it. No need to buy obsolete chips for too much money. Etc.etc.
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Old 12th July 2019, 11:29 PM   #14
soekris is offline soekris  Denmark
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Elektor audio DAC 2000
I can recommend to look at one of my R-2R discrete DACs, can be viewed as a modern PCM1704 replacement. The newest and best is the dam19x1, it's easy to use and flexible, the main thread is here:
dam1941 - Next Gen Discrete R-2R Sign Magnitude 24 bit 384 Khz DAC module
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