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

M26DSP A37T-M26DSP

ADAU1452 DSP with SigmaStudio software

A37T-M26DSP ADAU1452 Audio Processor 2 In 6 Out USB QCC3084 Bluetooth For RCA /XLR
Coaxial /Fiber Input

2 in 6 out
2-way, 3-way, 2.1 system, 2.2 system, etc

IIR or FIR filters

one click import of EQ data generated by 16 sets of REW software

Audio inputs:
USB

S/PDIF Coaxial or TOSlink (choose one) internal jumpers

Analog (for XLR or RCA, choose one)
RCA single ended, maximum output of 2.1Vrms
XLR balanced, maximum output of 4.2Vrms

QCC3084 Bluetooth, should mean LDAC, aptX Adaptive and aptX HD

...

components:

ADAU1452

ES9831

ES9018K2M

OPA1612AIDRGR(SON-8)
 
krisdeak said:
Looks like it's back in stock - would this be the new version?
https://www.aliexpress.com/item/1005011914285351.html

Look totally identical to the one in the OP.
Click to expand...
Specs in description indicate the old one. I don't think a separate listing from a different seller with near 50% price increase counts as a restock, perhaps they just have inventory from somewhere. I believe it's been listed by some third party on Newegg for similar cost the whole time too
 
Asked for updates. Trigger in/out looks like the only external change. ADC & DAC remain the same despite earlier claims..
1000032157.jpg
 
I hope it comes with a demo project, otherwise you'll be spending a good chunk of time figuring out where everything is routed. Seems like a no brainer purchase to me if you're up for sigma studio.
 
I tried to order from one of the other identical listings on Aliexpress and they gave me some story about the quality not being up to scratch so they had to cancel the order - in other words the identical listings are just dropshippers so they don't actually have it in stock.
 
I apologize, I was going to order this after EoM to be drop shipped to @amirm for testing.

Something's come up with one of my teen kids, so I can't, hopefully someone else will step up?

If it tests well and I buy it in future, I'll chip in a 20% reimbursement
 
Does anyone know if the aliasing problems of V1 are solved in V2?

In V1 the entire signal was simply mirrored at 24khz when running in 48khz mode. Aliasing at 48khz sample rate was completely ignored in the design.
If my memory serves me right aliasing was much better when running at 96khz and lowpassing the ADC signal or using the digital inputs.

Btw, the input impedance is rather low at 1k ohm unbalanced and 2k ohm balanced and the outputs are rather high impedance at 150 ohm unbalanced or 300 ohm balanced.
 
Please link to sources?

I was not aware that there even was a v2 was a confirmed fact ?

Alian said:
Does anyone know if the aliasing problems of V1 are solved in V2?

In V1 the entire signal was simply mirrored at 24khz when running in 48khz mode. Aliasing at 48khz sample rate was completely ignored in the design.
If my memory serves me right aliasing was much better when running at 96khz and lowpassing the ADC signal or using the digital inputs.

Btw, the input impedance is rather low at 1k ohm unbalanced and 2k ohm balanced and the outputs are rather high impedance at 150 ohm unbalanced or 300 ohm balanced.
Click to expand...
 
Sorry I was not clear. Asking for the sources of your information about the device
 
I measured it some time ago. If I find the time I can redo the aliasing measurements and plot it properly.

The impedance measurements were taken with an LCR meter at 1khz.
 
In other words the quality of the device / maker is so far below miniDSP, they should just be ignored?
 
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