151 (edited by sven 2026-03-06 11:29:52)

Re: ADI-2/4 Pro SE Discontinued?

hselters wrote:

I am personally trained in patience.

Good for you. It's just not helpful for anyone intending to purchase an RME product to replace the woeful ALC 888S, which means intending to purchase ASAP. 

hselters wrote:

Improving an already very well designed product might just take some time smile

AFAIC it's not about the wait, it's about knowing whether it's worth the wait. Target specs and target price would already be helpful.

Case in point, if the successor to the ADI-2/4 Pro SE would preserve its specs but would cost twice as much (like it happened with Lynx Studio's Hilo interface), I'd very much prefer to know that now instead of waiting for months on end, because in that case I'd rather buy something else with lesser specs, like e.g. a Fireface UCX II.

Re: ADI-2/4 Pro SE Discontinued?

You need to wait for an official product announcement.
No company—not only RME—shares details in advance if new products are planned.
It should be quite obvious that this would give competitors an advantage.
This is nothing new and has already been mentioned several times on the forum, including in this thread.

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

153 (edited by KaiS 2026-03-06 11:56:33)

Re: ADI-2/4 Pro SE Discontinued?

sven wrote:

… it's about knowing whether it's worth the wait. Target specs and target price would already be helpful.

If you look at RME’s long history and overview the current line of offerings – top notch quality with reasonable pricing – there’s no serious doubt that it WILL be worth the wait.

There will be an ADI-2/4 Pro SE follower, and ADI-2 DAC will be continued in some way, I bet.
The upped-specs have the potential to carry some amazing surprises.

Dropping the in-between ADI-2 Pro would be a logical move too.


And don’t forget:
The new models won’t take the faintest from the enormous quality the current line already presents.

154

Re: ADI-2/4 Pro SE Discontinued?

ramses wrote:

No company—not only RME—shares details in advance if new products are planned.

I know from experience that this is false.

155 (edited by KaiS 2026-03-06 12:14:08)

Re: ADI-2/4 Pro SE Discontinued?

sven wrote:
ramses wrote:

No company—not only RME—shares details in advance if new products are planned.

I know from experience that this is false.

Some time it was quite common to use announcements as teaser to keep people from buying a competitor’s product – then delay the release for an endless time.

RME never did that.

Re: ADI-2/4 Pro SE Discontinued?

sven wrote:
ramses wrote:

No company—not only RME—shares details in advance if new products are planned.

I know from experience that this is false.

Even in the studio sector? But as the saying goes, ‘Exceptions prove the rule.’

Then at least respect that RME does not handle it that way, and it is really not that unusual...

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

157 (edited by enricoclaudio 2026-03-08 04:52:08)

Re: ADI-2/4 Pro SE Discontinued?

Alto Music is taking orders for the RME ADI-2 Pro. It says “On Order With The Manufacturer”.

https://www.altomusic.com/products/rme- … er-adi2pro

Same with AVL Gear with shipping by June 2026:

https://avlgear.com/products/rme-adi-2- … wn8tzUftbQ

I’m going to contact my Sweetwater sales representative to see if he has an update from RME about stock.

Re: ADI-2/4 Pro SE Discontinued?

KaiS wrote:
sven wrote:
ramses wrote:

No company—not only RME—shares details in advance if new products are planned.

I know from experience that this is false.

Some time it was quite common to use announcements as teaser to keep people from buying a competitor’s product – then delay the release for an endless time.

RME never did that.

Deity is notorious for that. I've been waiting for the PR-4 for months and months.

Re: ADI-2/4 Pro SE Discontinued?

Here we go: a new lineup of DAC and DAC/ADC combos are out! They’re the ADI-3 family. RME have upped their game with exceptional new features, mind blowing specs (136dB SNR!!), and a price point about 30% cheaper than the previous versions! Holy moly, I cannot believe that, thank you RME!

Re: ADI-2/4 Pro SE Discontinued?

Is there a link for this?

RPi4 | RME ADI-2 Pro FS R BE | Senn HD600 | Sugden Masterclass AA | Teddy Pardo i80d | Naim SBL

Re: ADI-2/4 Pro SE Discontinued?

Is the password "April 1" ?

162

Re: ADI-2/4 Pro SE Discontinued?

nice try

M1-Tahoe, Madiface Pro, Digiface USB, Babyface silver and blue

163

Re: ADI-2/4 Pro SE Discontinued?

soupiraille wrote:

Here we go: a new lineup of DAC and DAC/ADC combos are out! They’re the ADI-3 family. RME have upped their game with exceptional new features, mind blowing specs (136dB SNR!!), and a price point about 30% cheaper than the previous versions! Holy moly, I cannot believe that, thank you RME!

I've stop believing at "ADI-3": the "2" in ADI-2 is the number of channels, not the version of the machine big_smile

ADI-2 DAC (with stock PSU) - Neumann KH 310 A monitors - Cheap USB and XLR cables

Re: ADI-2/4 Pro SE Discontinued?

N00b wrote:

I've stop believing at "ADI-3": the "2" in ADI-2 is the number of channels, not the version of the machine big_smile

It's not all that simple:
https://www.soundonsound.com/reviews/rme-adi-1

Fireface UCX II + ARC USB > ADI-2 Pro FS R BE > Neumann KH 750 DSP + MA 1 > KH 120 A

165

Re: ADI-2/4 Pro SE Discontinued?

unpluggged wrote:
N00b wrote:

I've stop believing at "ADI-3": the "2" in ADI-2 is the number of channels, not the version of the machine big_smile

It's not all that simple:
https://www.soundonsound.com/reviews/rme-adi-1

In the current range it is: ADI-2, ADI 2/4, M32 etc.
But I must confess I didn't know this nice ancester!

ADI-2 DAC (with stock PSU) - Neumann KH 310 A monitors - Cheap USB and XLR cables

Re: ADI-2/4 Pro SE Discontinued?

unpluggged wrote:

It's not all that simple:
https://www.soundonsound.com/reviews/rme-adi-1

Good point, didn't even think of that one. I always thought the successor to the Fireface 800 should have been called Fireface 900, but then they went for 802 instead... :-)

Regards
Daniel Fuchs
RME

167

Re: ADI-2/4 Pro SE Discontinued?

Follow Apple, ADI-26 if release in 2026

M1-Tahoe, Madiface Pro, Digiface USB, Babyface silver and blue

Re: ADI-2/4 Pro SE Discontinued?

ADI-123-meins wink

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

169 (edited by hallu 2026-04-02 20:27:31)

Re: ADI-2/4 Pro SE Discontinued?

To anyone at RME reading this:

PLEASE MAKE THE ADI 2/4 PRO SE HAVE THE SCREWS FOR RACK MOUNT ATTACHMENTS THAT THE ADI 2 PRO SE HAS

I do mastering, all I need is two inputs and four outputs. 2 in/2 out for an analog hardware loop, 2 out to my monitors. But I need it racked up with my gear.

I decided to buy a used Lynx Hilo instead of the ADI 2/4 Pro only because of the rackmount situation, and now one input just died so I'm on the market for a new unit. I'd prefer to buy RME over the Lynx Hilo 2 but I'm not leaving that on a desk top when I have open rack space and my desk is already ergonomic.

I know theres that rackmount tray that I could attach from the bottom but its ugly and leaves a large hole in the rack.

170

Re: ADI-2/4 Pro SE Discontinued?

RME Support wrote:
unpluggged wrote:

It's not all that simple:
https://www.soundonsound.com/reviews/rme-adi-1

Good point, didn't even think of that one. I always thought the successor to the Fireface 800 should have been called Fireface 900, but then they went for 802 instead... :-)

Fireface 800 with USB 2...

Regards
Matthias Carstens
RME

171

Re: ADI-2/4 Pro SE Discontinued?

The RME ADI-2-Pro EX just arrived. I'm hyped!

Current: Babyface 1st Gen, 2x Fireface UCX II, ADI 2/4 PRO SE
Sold: HDSP 9632, ADI 2 DAC FS

172 (edited by ramses 2026-06-03 12:15:50)

Re: ADI-2/4 Pro SE Discontinued?

fb_in wrote:

The RME ADI-2-Pro EX just arrived. I'm hyped!

As this thread is about the "ADI-2/4 Pro SE"...
The ADI-2-Pro EX is, according to the description on the webpage, the successor to the ADI-2 Pro FS R BE.

"[...] The ADI-2 Pro EX represents the next evolution of RME’s all-in-one reference converter concept. Building on the proven design of the ADI-2 Pro FS R Black Edition, the new ADI-2 Pro EX offers professional users the famous, comprehensive functionality of the previous reference converter, but now updated with a redesigned chassis, enhanced output performance, and further comprehensive hardware protection. [...]"

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

173

Re: ADI-2/4 Pro SE Discontinued?

You are totally right.
I'm just happy to finally see the first variant of the updated generation being released.

Current: Babyface 1st Gen, 2x Fireface UCX II, ADI 2/4 PRO SE
Sold: HDSP 9632, ADI 2 DAC FS

Re: ADI-2/4 Pro SE Discontinued?

Fully understood ;-)

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

175 (edited by rcstevensonaz 2026-06-03 23:24:32)

Re: ADI-2/4 Pro SE Discontinued?

Some information on the ADI-2/4 Pro EX (and also ADI-2 Pro EX, ADI-2 DAC EX) is provided here:
https://www.musicnetwork.ch/en/latest-n … -ex-series

Key Features of the EX Series
RME has significantly enhanced its core technology in key areas to take reliability and performance to a new level of quality.

  • SteadyClock EX: Each unit is factory-calibrated for extreme sample rate accuracy of ±1 ppm. The highlight: The internal clock can be fine-tuned in small steps (0.1 ppm) by ±50 ppm using the menu. This feature allows for perfect synchronization with other devices, even without external synchronization ("Sync without Sync").

  • New ESS converter chips: The use of state-of-the-art ESS chips (including the ESS9039Q2M for D/A conversion) has noticeably improved the SNR, THD, and THD+N.

  • Robust Connectors & Protection Circuits: Both models now feature a modern, lockable USB-C port with a 1.8-meter cable. Additionally, an active fuse-less power supply protection circuit provides absolute protection against overvoltage and reverse polarity. The headphone outputs also have a channel-independent hardware protection circuit against direct current (DC).

RME ADI-2/4 Pro EX – The Flagship Mastering Interface
The Pro version is the undisputed benchmark for studio and high-end setups and offers additional hardware enhancements.

  • The new ESS9823Pro A/D converter guarantees completely transparent analog-to-digital conversion with optimized noise and distortion levels.

  • Vinyl and microphone upgrades: RIAA equalization is now available in line mode (0 dB gain), which allows for the use of external preamps and simplifies the use of MC systems. A separate ground screw provides a ground connection for turntables. Additionally, extended reference levels up to -35 dBu allow for direct connection of dynamic microphones.

  • Flexible Source Selection: ADAT channels 3 and 4 can now be selected directly as the headphone output source.

  • Available starting in late Q3 2026; pricing to be announced.

Re: ADI-2/4 Pro SE Discontinued?

+1 thanks :-)

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

177

Re: ADI-2/4 Pro SE Discontinued?

Why didn’t go for a higher-end ADC/DAC model?
ESSTECH also offers the MPRO (ADC) and the PRO (DAC) version.

178 (edited by ramses 2026-06-04 09:52:42)

Re: ADI-2/4 Pro SE Discontinued?

pogo wrote:

Why didn’t go for a higher-end ADC/DAC model?
ESSTECH also offers the MPRO (ADC) and the PRO (DAC) version.

Just googled and found this announcement:
https://audioxpress.com/news/ess-techno … converters

So you mean the ES9823 ?

According to this information
https://www.musicnetwork.ch/en/latest-n … -ex-series

[...] RME ADI-2/4 Pro EX – The Flagship Mastering Interface
The Pro version is the undisputed benchmark for studio and high-end setups and offers additional hardware enhancements.
The new ESS9823Pro A/D converter guarantees completely transparent analog-to-digital conversion with optimized noise and distortion levels. [...]

the new RME ADI-2/4 Pro EX has one of those converters.

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

179

Re: ADI-2/4 Pro SE Discontinued?

ramses wrote:

So you mean the ES9823 ?

Yes, but the MPRO version with MQA FOQUS.

180 (edited by unpluggged 2026-06-04 16:33:33)

Re: ADI-2/4 Pro SE Discontinued?

pogo wrote:

Why didn’t go for a higher-end ADC/DAC model?
ESSTECH also offers the MPRO (ADC) and the PRO (DAC) version.

Because "Hi-End" ≠ better quality. ES9039Q2M is already better than anything from the past, say, 50 years.
And again, DAC chips have no sound, so please stop making such a big deal out of them. As I said, I don't even know which converters are inside my KH 750 DSP, but I will never again connect my analog KH 120 speakers to anything else.

Fireface UCX II + ARC USB > ADI-2 Pro FS R BE > Neumann KH 750 DSP + MA 1 > KH 120 A

181 (edited by pogo 2026-06-04 18:19:12)

Re: ADI-2/4 Pro SE Discontinued?

unpluggged wrote:

DAC chips have no sound, so please stop making such a big deal out of them.

There must be a design decision on RME’s part behind this. I’d just like to understand it. In your opinion, they could have stuck with the older DAC chips.
For me, that rules the new product out.

182 (edited by unpluggged 2026-06-04 17:45:53)

Re: ADI-2/4 Pro SE Discontinued?

pogo wrote:

For me, that rules the new product out.

Then you are not the target market for this product in the first place.

Fireface UCX II + ARC USB > ADI-2 Pro FS R BE > Neumann KH 750 DSP + MA 1 > KH 120 A

183 (edited by pogo 2026-06-04 17:55:59)

Re: ADI-2/4 Pro SE Discontinued?

unpluggged wrote:

Then you are not the target market for this product in the first place.

I disagree, as I'm in the process of setting up my home recording studio again.

184 (edited by rcstevensonaz 2026-06-04 19:58:10)

Re: ADI-2/4 Pro SE Discontinued?

unpluggged wrote:

Then you are not the target market for this product in the first place.

pogo wrote:

I disagree, as I'm in the process of setting up my home recording studio again.

Both statements can be true. :-)  You can be setting up a recording studio. And you can have requirements (e.g., specific DAC, FOQUS MQA, etc.) that put you outside of the target market that RME is designing their products for.

Re: ADI-2/4 Pro SE Discontinued?

pogo wrote:
unpluggged wrote:

DAC chips have no sound, so please stop making such a big deal out of them.

There must be a design decision on RME’s part behind this. I’d just like to understand it. In your opinion, they could have stuck with the older DAC chips.
For me, that rules the new product out.

The design decision is that there are no plans to implement this proprietary technology, and therefore, there is no need to use converters that support it. You've asked this before:
https://forum.rme-audio.de/viewtopic.php?id=42955

Regards
Daniel Fuchs
RME

Re: ADI-2/4 Pro SE Discontinued?

Just to clarify: RME has not officially announced the RME ADI-2/4 Pro EX yet & the Swiss report is sort of an unofficial leak?

The addition of line mode for vinyl is welcome for my use case.

Can somebody explain the mic-connectivity? What's the difference to a mic-pre here?

And no to MQA under any circumstances.

Re: ADI-2/4 Pro SE Discontinued?

NoisyNarrowBandDevice wrote:

Can somebody explain the mic-connectivity? What's the difference to a mic-pre here?


An actual mic-pre would also support 48v phantom power for condenser mics, which the ADI series does not have, hence the limitation of the analogue inputs to dynamic mics.

188

Re: ADI-2/4 Pro SE Discontinued?

RME Support wrote:

The design decision is that there are no plans to implement this proprietary technology, and therefore, there is no need to use converters that support it.

Is that also the reason why RME didn’t implement ESSTECH’s higher-performing PRO DAC?

Re: ADI-2/4 Pro SE Discontinued?

From what I can see, the chips with a "PRO" in the name are all 8-channel converters, which the ADI does not require...
https://www.esstech.com/products-overvi … hile-dacs/
"ESS SABRE PRO DACs are designed for premium home theater equipment including Blu-ray players, preamplifiers, all-in-one A/V receivers, and more."
The ES9039Q2M is a suitable choice.

Regards
Daniel Fuchs
RME

Re: ADI-2/4 Pro SE Discontinued?

hselters wrote:
NoisyNarrowBandDevice wrote:

Can somebody explain the mic-connectivity? What's the difference to a mic-pre here?


An actual mic-pre would also support 48v phantom power for condenser mics, which the ADI series does not have, hence the limitation of the analogue inputs to dynamic mics.

Thx. Probably a quite rare use-case but a great addition to the ADI imho. Gonna combine with my BFP and 4 mics simultaneously cover probably 95% of my sessions.

Re: ADI-2/4 Pro SE Discontinued?

NoisyNarrowBandDevice wrote:
hselters wrote:
NoisyNarrowBandDevice wrote:

Can somebody explain the mic-connectivity? What's the difference to a mic-pre here?


An actual mic-pre would also support 48v phantom power for condenser mics, which the ADI series does not have, hence the limitation of the analogue inputs to dynamic mics.

Thx. Probably a quite rare use-case but a great addition to the ADI imho. Gonna combine with my BFP and 4 mics simultaneously cover probably 95% of my sessions.

You do understand, though, that it's about having an ultra-high sensitivity setting for the line input with gain then being controlled purely in digital domain (and I suspect, in a limited range)? So it might not be suitable for all use cases and not for all microphones. A proper mic preamp has a true variable gain control.

Fireface UCX II + ARC USB > ADI-2 Pro FS R BE > Neumann KH 750 DSP + MA 1 > KH 120 A

192

Re: ADI-2/4 Pro SE Discontinued?

RME Support wrote:

From what I can see, the chips with a "PRO" in the name are all 8-channel converters, which the ADI does not require...

The PRO version can also be used in stereo mode or even in a dual-mono configuration. The performance improvements are detailed in the datasheet.
By the way, the DAC PRO version is also available without MQA and it is already used in affordable stereo DACs.

193

Re: ADI-2/4 Pro SE Discontinued?

In my opinion the DAC Chip itself does not matter that much if you are already at the current state of the art. It's more important that surrounding circuits and the integration in the product is done nicely. You can get the chip itself pretty cheap, but that does not give you a matured product.

Current: Babyface 1st Gen, 2x Fireface UCX II, ADI 2/4 PRO SE
Sold: HDSP 9632, ADI 2 DAC FS

194 (edited by Kubrak 2026-06-05 14:14:12)

Re: ADI-2/4 Pro SE Discontinued?

@pogo
OK, RME has choosen not to use Pro one, whatever reason. That is the reality and you will have to live with that. And if you prefer DAC with that chip you may buy any of those affordable stereo DACs. If you think, it will give you better results....

FF UCX II, Digiface USB, Babyface Pro FS

195 (edited by ramses 2026-06-05 14:29:01)

Re: ADI-2/4 Pro SE Discontinued?

fb_in wrote:

In my opinion the DAC Chip itself does not matter that much if you are already at the current state of the art. It's more important that surrounding circuits and the integration in the product is done nicely. You can get the chip itself pretty cheap, but that does not give you a matured product.

+1 Fully agree.

It’s just like in Formula 1: the most powerful engine alone is no guarantee of victory.
It’s all about the overall design, a sensible choice of components, PCB layout, clean implementation, fine-tuning of the components in relation to one another. The converters must be driven in such a way that there is sufficient headroom for OVRs. The analog stages that bring the converter’s output signal to various line levels must also be of high quality, etc etc.

A good design choice in all areas, plus RME-specific technology (e.g. SteadyClock EX), finally results in an outstanding product.

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent

196 (edited by KaiS 2026-06-06 08:37:53)

Re: ADI-2/4 Pro SE Discontinued?

NoisyNarrowBandDevice wrote:

Can somebody explain the mic-connectivity? What's the difference to a mic-pre here?

A dedicated mic pre has a very high gain to bring the signal to line level.
The disadvantage - high gain amplification comes at a cost, bandwidth limitation and distortion.

ADI-2/4‘s input doesn’t need high analog gain, as the latest ADC chips can use a lower signal level and still achieve the same high signal-to-noise ratio.

Less is more - less analog electronics in the signal path leads to a cleaner signal, as ADI-2/4 Pro SE already has demonstrated with its superior RIAA input.

BTW: even condensor mics can be used if one uses an external P48 phantom power  device (which isn’t expensive), or connect a tube mic which has its own power supply and doesn’t use P48 anyway.

NoisyNarrowBandDevice wrote:

And no to MQA under any circumstances.

Since Tidal has abandoned MQA the format’s importance is declining anyway.

IMO the basic idea about MQA is a good one, but the marketing around it killed it.

197

Re: ADI-2/4 Pro SE Discontinued?

As was leaked the next 2/4 Pro EX will have a digital gain without RIAA option, extending the Ref Levels on Line input down to -35 dBu. In that setting SNR is still 90 dB - CD quality, no audible noise. Other than typical mic preamps you get full bandwidth and super low THD. So it's more than good enough to connect a (2) dynamic mic(s), or 2 condensors if you have a phantom power supply, and use it for whatever is needed.

This is a usefull 'tool' addition, not a replacement for dedicated, professional mic preamps.

And to answer the next obvious question: these new RIAA centered features were possible due to the updated ASP in the updated ADC chip, so can most probably not be back-ported to existing 2/4 Pro SE.

Regards
Matthias Carstens
RME

198 (edited by KaiS 2026-06-06 08:45:04)

Re: ADI-2/4 Pro SE Discontinued?

MC wrote:

… to connect a (2) dynamic mic(s), or 2 condensors if you have a phantom power supply, and use it for whatever is needed.


And to answer the next obvious question: these new RIAA centered features were possible due to the updated ASP in the updated ADC chip, so can most probably not be back-ported to existing 2/4 Pro SE.

Don’t forget to mention tube mic’s, which have their own power supply, specially the very popular LDCs (Large Diaphragm Condensors).


On ADI 2/4 Pro SE the RIAA function can be used for mics if an Anti-RIAA-EQ is applied in the input’s DSP.
I have set one, published it somewhere here in this forum (no time to seek ATM).

Re: ADI-2/4 Pro SE Discontinued?

The choice of AD and DA chip matters a lot from a marketing perspective. I think it's still better use the newest flagship chips available, then optimize and tune the implementation around them. Although the mid-tier and older chips can achieve the goal perfectly.

The actual cost difference of the chip itself usually has only a small impact on the final profit margin. However, using older or mid-range chip can lead many potential buyers to perceive the product as less premium, regardless of how good the real world performance is. Audio is a very subjective field, people believe in all kinds of things, like what chips being used.

200 (edited by ramses 2026-06-06 10:29:38)

Re: ADI-2/4 Pro SE Discontinued?

Finfet wrote:

The choice of AD and DA chip matters a lot from a marketing perspective. I think it's still better use the newest flagship chips available, then optimize and tune the implementation around them. Although the mid-tier and older chips can achieve the goal perfectly.

The actual cost difference of the chip itself usually has only a small impact on the final profit margin. However, using older or mid-range chip can lead many potential buyers to perceive the product as less premium, regardless of how good the real world performance is. Audio is a very subjective field, people believe in all kinds of things, like what chips being used.

Sorry, but I disagree.

AFAIR, the ADI-2* series has never used the most expensive converter chips, yet these devices became a huge success because they simply perform and deliver, and the price/performance ratio is fantastic.

I think RME customers understand very well that RME designs products efficiently, ensuring they don't waste the customers' money for no reason. RME creates high-quality products at reasonable prices that remain affordable.

Look at your first post in this forum (https://forum.rme-audio.de/viewtopic.ph … 76#p191076); you said it yourself (regarding the ADI-2/4 Pro SE). Price is always a crucial factor for the success of a product.

Even the very first model (the ADI-2 Pro from 2016) with the AK4490 performed extremely well against units from Lavry and HEDD, which were up to five times more expensive (see: https://www.youtube.com/watch?v=doHG32aXBDY).

Another thing. As RME support pointed out, the ESS converters with "PRO" in the name are actually 8-channel converters designed for premium home theater gear (BluRay Player, AV Receiver, ..). The ADI-2 series is a stereo device and doesn't need 8 channels. Using a 2-channel chip like the ES9039Q2M is the technically correct and efficient choice here.

Paying a premium for 8-channel silicon or hardcoded 3rd-party licenses like MQA's FOQUS / QRONO makes little sense for a stereo design, especially since these proprietary digital filters do not improve the hardware's core analog specifications like SNR or THD+N. RME's strength has always been maximizing real-world performance through e.g. superior clocking (now even SteadyClock EX) and excellent analog circuit design around the right chip for the job.

If I had to choose between a product with unneeded components that make the price unnecessarily high and an affordable product that delivers every feature you could actually need, and options you could otherwise only dream of, it should be clear which product I would prefer.

BR Ramses - HDSPe MADI FX, M-1620 Pro D, 12Mic, UFX III, ADI-2 Pro FS R BE, Nuendo 15, Win10 IoT Ent