• Welcome to ASR. There are many reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

New 28-bit DAC coming out.

The new D-1 DAC by Imersiv makes every DAC on the planet obsolete.

I saw a clip in AudioXpress about the company winning an innovation prize from the SAE.

You can learn more about it here:

The SNR and distortion are 168dB below peak output which is +23dBu (10.9Vrms).

No price is listed. I’m guessing that the Imersiv box will be coming in around $5k. Have to wait and see.

With the Topping D90III Sabre costing $800 or so, it seems ridiculous to buy a fancy, machined-from-billet DAC for $20k when it’s performance is worse.

Obviously, the “budget” DACs that come in for less than a grand still have plenty of validity since they outperform human hearing in any standard environment. In the normal house, your doing good if the background noise is 45db.

In a world-class studio, background noise is 15 to 20dB. Obviously, that’s where you can hear the difference the Imersiv D-1 makes.

This, of course, brings up the subject of these imbeciles who think they can hear musical details to below 0dB in their noisy listening rooms. That, though, is a whole ‘nother topic.

Addition: they mention in their site that this circuit can be adapted to pre-amps and amplifiers. That would be incredible.
 
Last edited:
Bargain :)
 
The new D-1 DAC by Imersiv makes every DAC on the planet obsolete.

Obviously, the “budget” DACs that come in for less than a grand still have plenty of validity since they outperform human hearing in any standard environment. In the normal house, your doing good if the background noise is 45db.
I think these statements are somewhat in conflict. ;)

Having the noise floor that low is certainly impressive, but as you note it doesn't have a lot of practical use. I guess you probably meant it as tongue in cheek, but our well built $200 DACs are no more obsolete than pencils in the face of the pressurized astronaut pen.

It still won't make Rob "-300dB" Watts happy though.
 
I think these statements are somewhat in conflict. ;)

Having the noise floor that low is certainly impressive, but as you note it doesn't have a lot of practical use. I guess you probably meant it as tongue in cheek, but our well built $200 DACs are no more obsolete than pencils in the face of the pressurized astronaut pen.

It still won't make Rob "-300dB" Watts happy though.
OK, it makes the ridiculously expensive DACS that ponces buy (because they think that great equipment has to be incredibly expensive) obsolete.
 
Well, that is a great use of your technology indeed, hats off. It makes perfect sense there (less so in human audio with inefficient human senses, IMO).
Yes, I wanna say... this is amazing and congratulations to @signalpath on the award. I think we can also safely say that "overkill" is on the road somewhere between measuring gravity waves and consumer audio use cases. :D
 
Available to purchase for only $12,000...
Quite a bit in the digital pass but Op Amps in the analogue section. What Op Amps are used here?


1764206057432.png
 
Also there are some samples of audio on Youtube:

Sounds quite transparent however it has the ESS Dac Chip sound signature...
 
It would seem the product is going to great lengths to only sound like the signal being fed to it. What does this ESS sound sound like?
its sarcasm..
 
What Op Amps are used here?

OPA1612 in IV, Sum, Buffer, and Output. ES9038 DAC. SHARC DSP. XMOS USB. AKM rcvrs. MCU. Dante Brooklyn. 21 individual ULN LDOs. ULN clocks. OLED. 6-layer PCB. Additional DACs / ADCs / Logic / Passives / SecretSauce as required for HDR-A processing + 12 years of wickedly hard, absurdly expensive R/D.

In multi-path architecture, the actual conversion device is not super critical. We're using a 9038, but a far lesser device could have been used with no impact to our 168dB dynamic range or THD+N reductions. This is because, in HDR-A processing, the conversion device is not operating 1:1, but is a "bit place holder". This is explained in detail on the longer tutorial video on the imersiv.com website. The AES Engineering Paper is now open-source (free download) which goes deeply into the process: https://aes2.org/publications/elibrary-page/?id=21106
 
OPA1612 in IV, Sum, Buffer, and Output. ES9038 DAC. SHARC DSP. XMOS USB. AKM rcvrs. MCU. Dante Brooklyn. 21 individual ULN LDOs. ULN clocks. OLED. 6-layer PCB. Additional DACs / ADCs / Logic / Passives / SecretSauce as required for HDR-A processing + 12 years of wickedly hard, absurdly expensive R/D.

In multi-path architecture, the actual conversion device is not super critical. We're using a 9038, but a far lesser device could have been used with no impact to our 168dB dynamic range or THD+N reductions. This is because, in HDR-A processing, the conversion device is not operating 1:1, but is a "bit place holder". This is explained in detail on the longer tutorial video on the imersiv.com website. The AES Engineering Paper is now open-source (free download) which goes deeply into the process: https://aes2.org/publications/elibrary-page/?id=21106

I have read the aes paper, now I think I fully get it: 1 msec fade in and fade out time also includes additional noise from the low path to match the noise floor of the high path.
So the worsted case 'artifact' you can get is a 2 msec noise modulation at -106dBm.
Still impressive to switch on and off the high path without getting any switching noises at that -106dBm..!
 
Back
Top Bottom