Which DAC is used in the SuperUniti?

Simple question, which DAC is used in t the SuperUniti. I searched but couldn’t find it. Is it the Burr Brown PCM1791A ?

Any technical info about the DAC and the SHARC DSP used is welcome.

Thanks!

I believe it’s the same components as used in ND5 XS, NDX and NDS, whereas the Uniti 2, UnitiLite and UnitiQute 2 used a lesser component.

Best

David

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Year Streamer Jitter DSP Filter DAC chip Analogue filter
2016 Nova SHARC 21489 (Gen4) Sells-Nilsson filter (brickwall IIR) PCM1791A
2016 Star SHARC 21489 (Gen4) PCM1791A
2016 Atom SHARC 21489 (Gen4) PCM1791A
2018 ND555 SHARC 21489 (Gen4) 6th order Sallen-Key filtration 2x PCM1704U-K 6th order Sallen-Key filtration
2018 NDX-2 SHARC 21489 (Gen4) PCM1792A discrete
2018 ND5 XS-2 SHARC 21489 (Gen4) PCM1791A
2012 NDS 512 cl freqs SHARC 21369 Butterworth w/ extra poles (IIR) PCM1704K 7-pole discrete
2010 NDX 10 cl freqs SHARC 21369 Butterworth w/ extra poles (IIR) PCM1791A 7-pole, Burr-Brown OPA42 op-amps
2011 ND5 XS SHARC 21369 PCM1791A
2012 n-172 XS TI SRC4392 PCM1793
2015 n-272 SHARC 21489 Sells-Nilsson filter (brickwall IIR) PCM1792A
2007 SuperNAIT PCM1792A
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That’s the info on DACs I’ve gathered so far. I hadn’t looked in the 1st gen Unitis, but logically it should be PCM1791A.
SHARC 21369 is my bet for the DSP chip, as it is what was used in concurrent products.

Edit: It’s PCM1791A according to this article from What Hi-Fi?:
Naim’s new SuperUniti network music system: it’s like a UnitiQute, but louder! | What Hi-Fi?

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Year Streamer Streaming card DSP DAC chip Bluetooth Zigbee
2009 Uniti Askey Computer Corp. H8NWLL3120 → 2012 SeDMP3 Wolfson WM8706 No No
2010 Uqute Askey Computer Corp. H8NWLL3120 → 2012 SeDMP3 Burr-Brown SRC4392 Wolfson WM8728 No No
2010 NDX Tecom Co Ltd. D6XWL5011S → 2011 SeDMP3 SHARC 21369 PCM1791A Jun15 → 2ACURBLUE No
2011 ND5 XS Audivo GmbH SeDMP3 SHARC 21369 PCM1791A Jun15 → 2ACURBLUE No
2012 NDS Audivo GmbH SeDMP3 SHARC 21369 PCM1704K No No
2012 n-172 XS Audivo GmbH SeDMP3 TI SRC4392 PCM1793 Jun15 → 2ACURBLUE No
2011 SuperUniti Audivo GmbH SeDMP3 SHARC 21369? PCM1791A 2ACURBLUE No
2012 Ulite Audivo GmbH SeDMP3 TI SRC4392? PCM1793 2ACURBLUE No
2012 Uniti2 Audivo GmbH SeDMP3 TI SRC4392? PCM1793 2ACURBLUE No
2013 Uqute2 Audivo GmbH SeDMP3 TI SRC4392? PCM1793? 2ACURBLUE No
2015 n-272 Audivo GmbH SeDMP3 SHARC 21489 PCM1792A 2ACURBLUE No
2016 Nova Naim Audio NP800 SHARC 21489 (Gen4) PCM1791A 2ACURBLUE 2ACURZIGEE
2016 Star Naim Audio NP800 SHARC 21489 (Gen4) PCM1791A 2ACURBLUE 2ACURZIGEE
2016 Atom Naim Audio NP800 SHARC 21489 (Gen4) PCM1791A 2ACURBLUE 2ACURZIGEE
2018 ND555 Naim Audio NP800 SHARC 21489 (Gen4) 2x PCM1704U-K 2ACURBLUE upd 2ACURZIGEE
2018 NDX-2 Naim Audio NP800 SHARC 21489 (Gen4) PCM1792A 2ACURBLUE upd 2ACURZIGEE
2018 ND5 XS-2 Naim Audio NP800 SHARC 21489 (Gen4) PCM1791A 2ACURBLUE upd 2ACURZIGEE
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Thank you for posting this. :slight_smile:

You 're welcome! :grinning:

Of course parts don’t tell the full story of how the product will sound like, but they give a hint on the hierarchy of things. For example it seems that SuperUniti had improvements on both the digital and analog sides compared to its smaller Uniti “brothers”…

In the new Uniti generation the specs are pretty similar in the digital front. Of course there will be differences in power supply quality, isolation and so on that still play a role.

The digital front end of the new Unitis is very different from the old models. The streaming board is a complete redesign. I’d say the continued use of TI DAC chips is about the only thing they have in common.

I am afraid you misunderstood what I meant. Obviously I didn’t write it very clearly!

What I meant was that the DSP + DAC chip is the same among all the new Unitis (Atom, Star, Nova). Whereas in the first generation the SuperUniti had a better digital part compared to the rest.

Of course the new generation is a big development over the previous one, especially regarding the streaming board.

Interesting that 272 and NDX2 share same DAC and DSP chipset.

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