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ADAU1452-based "BEAYEAU" M26DSP from China, not cheap - any good?

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john61ct

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M26DSP ADAU1452 Audio Processor 2 in 6 Out USB QCC3084 Bluetooth XLR/RCA Coaxial /fiber Input - https://a.aliexpress.com/_mKiL9Vj

DSP noob here please ELI5

Use cases include crossovers, general PEQ, maybe non-automated room correction? Using REW + UMIK-2 for measuring...

Yes I realise miniDSP can be nearly as cheap, but not with SIX outputs, easily mix & match between consumer voltage RCA or pro level balanced XLR

I've seen posters recommend ADAU1701 devices and the SigmaStudio software, some saying more powerful than miniDSP?

Besides the main question, does it perform well, is it clean SQ?

Alternative sources for USA not risking tariff uncertainty please?
 
john61ct said:
I've seen posters recommend ADAU1701 devices and the SigmaStudio software, some saying more powerful than miniDSP?
Click to expand...
The ADAU1701 and the ADAU14xx family (1452, 1462, 1466 etc.) belong to different generations of Analog Devices SigmaDSP processors and are intended for quite different levels of complexity.

The ADAU1701 is an older, small all-in-one audio DSP, which integrates ADCs and DACs on the chip, what makes hardware design very simple. However, its processing power is limited (roughly 50 MIPS), the available program and data memory are small, and the I/O options are modest, but It workverys well for applications such as basic 2- or 3- way active speakers, small EQ processors, or compact analog-in/analog-out DSP boards.

The ADAU14xx devices are a much newer and far more powerful SigmaDSP generation. They are pure digital processors without integrated converters, so external ADCs and DACs are required, but this also allows the use of higher-quality converters and much more flexible system design.

Within the 14xx family itself, the DSP architecture and processing power are essentially the same. The differences mainly concern memory size and the number of available pins and I/O resources.

One more aspect that you should not be overlooked is the software environment. All SigmaDSP devices are designed to be used with Analog Devices’ SigmaStudio software, which is essentially the central tool for configuring and programming the DSP.

In practice, I am only familiar with the 1701, but I am planning a large active speaker project with the 14xx for the future.
 
Thanks much for that background context.

I just meant, my impressions from my reading is that in general the chips and software are solid.

But of course this specific implementation may suck. I'm hoping not ;-)
 
I saw this DSP on Aliexpress too. For the price, it easily gives the MiniDSP 2x4(HD) a run for its money.
Someone'll just have to be brave enough to buy one and test. The reviews are generally positive :)
 
john61ct said:
M26DSP ADAU1452 Audio Processor 2 in 6 Out USB QCC3084 Bluetooth XLR/RCA Coaxial /fiber Input - https://a.aliexpress.com/_mKiL9Vj

DSP noob here please ELI5

Use cases include crossovers, general PEQ, maybe non-automated room correction? Using REW + UMIK-2 for measuring...

Yes I realise miniDSP can be nearly as cheap, but not with SIX outputs, easily mix & match between consumer voltage RCA or pro level balanced XLR

I've seen posters recommend ADAU1701 devices and the SigmaStudio software, some saying more powerful than miniDSP?

Besides the main question, does it perform well, is it clean SQ?

Alternative sources for USA not risking tariff uncertainty please?
Click to expand...
The bluetooth chip is great, see my post about it.
 
Before you order, please get an idea how you have to work with SigmaStudio. It may not be what you consider a "software". Sigma Studio is a tool box, a program and set once software, no GUI to permanently fine tune an audio system.
There are other sollutions that may cost maybe 150$ more, but in the end turn out be 500$ cheaper for you.
Download and install SigmaStudio and you will see.
 
I wrote to the seller on Aliexpress about a restock ETA & heard back that this particular model is already discontinued as they're coming out with a new version using ES9823Pro + ES9039Q2M. No date given though.
 
I got one two months ago as a companion for a DIY 4-ch amplifier with balanced inputs driving digital xover for a modified version of Directiva 1, looks perfectly matched to my needs as I plan to run dual subs as well - total of 6ch. Looks solid as far as I looked into it and at least works with Sigma projects. Sample projects are in Chinese but no issue as google translate is a good friend. Planning to run some tests in a couple of weeks.
PCB work is ~decent with some manual solder fixes, ESS is there, OPAMPs seem erased. Power supply most likely I'll need to clean up a bit more with better caps, disconnect the RCA outputs and hopefully it will be a decent DAC preamp.
 

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julbo said:
Sample projects are in Chinese but no issue as google translate is a good friend. Planning to run some tests in a couple of weeks.
Click to expand...
There are quite a few sample projects for the 1701 in english that you can simply use as a start for a project, which you can easy adapt to your needs as you go; just set the other ADAU as the path at the beginning of the chain in Sigma Studio.
For example, there are some from Dayton Audio.
 
The problem is not so much the DSP or setting up a Sigma starter project but the connectivity to the peripherals that are privy to this specific board. First question for example, do I instantiate a USB interface or I need a SPI/I2C probe to connect to the board? Answer - USB with Chinese labels :)
I already have worked with the Sigma environment on 1701 using the absolutely wonderful SYDAP-2002 https://www.3e-audio.com/finished-amp/tpa32xx-all-in-one-amplifier/.
 
GRRRR so irritating that known-good instances of these devices come and go like the weather!

Anyway I prefer line level over built-in to amps for flexibility.

And six or more lines out is certainly better than just four.

Any reco's for good value, CURRENTLY available models?

Ideally ones that will stick around more than a few months? :-(
 
I was so surprised of the 3e audio's SYDAP quality that I stocked up 2 additional amplifiers as bkup in case that my something breaks. It's not stocking, it's planning for the worse :-)
 
Searching brings up "SYDAP-2002"

but turns out only this thread ??

Was it released in 2002 and ignored by the WorldWideWeb ??
 
I have designed a DSP module to be used with 3e TPA3255 modules:
www.audiosciencereview.com

York DSP devices

Hello, couple of times I posted my projects photos in different threads but I think it is time to create a separate thread. I've been working on the York USB UAC2 interface and then started transitioning into DSP hardware and software. One project is a 4 channel D-Class amplifier for which I...
www.audiosciencereview.com www.audiosciencereview.com

Can be used with other amplifiers too.
 
Newegg seems to have some still. But it's strange how they all just disappeared.
Having enough channels for a 3-way or a 4-way (3+sub) system should be really much more widely available.
I guess we still have DSPi...
 
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