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Responsible manufacturer--A short story about Matrix Mini-i Pro 3

The more difficult question to ask is why did it take you to identify the problem?
IMO This is where MA drops the ball. They are all over stuff if you point bring up an issue. but it has to be brought to their attention.
 
Tks said:
END is solid with zero issues aside from 'em coders that quickly start skipping steps in both directions. RME will replace them if you run into the issue. Aside from that, the device is functionally perfect (though I wish they would use heat sinks as the unit can get warm to the touch even with no direct contact to heat producing chips on the board).
Click to expand...
I can confirm, that the unit gets very warm. So since there are no heatsinks one should make sure, that the unit stands free for cooling purposes.

Btw: Never heard or read of a problem with the encoders. Did it happen to your unit or could you give a more precise description of the malfunction? Mine work perfect until now....
 
Grotti said:
I can confirm, that the unit gets very warm. So since there are no heatsinks one should make sure, that the unit stands free for cooling purposes.

Btw: Never heard or read of a problem with the encoders. Did it happen to your unit or could you give a more precise description of the malfunction? Mine work perfect until now....
Click to expand...

Basically for me, the main encoder, and the bottom smaller encoder are slowly getting worse. They actuate every click, but sometimes ~50% of the time, they skip volume steps (thats how it started) and now the skips are becoming far worse (going in the opposite direction, where at times I can be turning the knob 180 degrees and I would end up sometimes near the initial volume position I started from). The top smaller encoder is actually fine (also there is a feel difference, that top encoder feels far more firm, and it's steps don't sometimes physically slip after actuations, while the bottom encoder is slightly wobbly, and also while turning, doesn't always fall into it's steps as desired, and will 'slip' easier over a step sometimes because the dampening isn't equal to the one on the top which is virtually perfect).

My unit suffers this, but I bought my unit at potentially the worst time (a bit over a year and a half ago when the V1 units were basically nonexistant in the US - little did I know, it was due most likely due to the impending V2 launch soon after). I had to order it from overseas and it was shipped to me here from "rme-shop.com" which have a US shipping available option thankfully. They got it to me quick, but if I were a tad patient, I would have had a V2 now >_<

At any rate, I actually prefer the V1, as it seems the IEM jack performs better, and I use IEM's a lot. But I am too lazy to send it out overseas and then wait who-knows how long for the fix. I usually used the remote anyway even when things were fresh and new, so all is well enough for me. Though one thing I should consider getting is the V2 remote, it blows this out the water in my opinion.
 
Tanner said:
@Grotti the thing i could tell you is that i received the unit yesterday and it is buggy as hell. static pops and crackles when changing inputs and well beyong 5+ seconds when input is selected,rca input is worse, and on top of that with that gimmick auto-mute is unbearable. volume control is laggy either with knob or remote.
Click to expand...

Hi Tanner, do you still find the Matrix Mini-i Pro 3 buggy? Has there been any significant firmware update?

Static pops and crackles will drive me nuts. (Though I am training myself to be more tolerant with vinyl records.)

I am looking for a DAC and I mostly use Roon. Need to decide before the price increase... :)
 
If you use headphones, better buy a dedicated headset amplifier to connect. Matrix Mini-I Pro 3 is a good dac and preamp but headset amp side it's not very good
 
WolfX-700 said:
Last Saturday, I posted an article on my website about several bugs found during the measurement of Matrix Mini-i Pro 3.

In fact, I was very entangled in posting that article, because Matrix is a very good manufacturer, and we have good communication. But anyway, the bug does exist on the device I measured.

Overall, I found three bugs:

1.The noise gate setting is incorrect, and the signal below -70dbFS is directly muted.(SPDIF&USBin)

2.Serious Jitter in Roon client mode, looks like "HiFi Crown"

3.Bluetooth mode output frequency drift


Evidence obtained by measurement:
The noise gate setting is incorrect, and the signal below -70dbFS is directly muted.(SPDIF&USBin)
View attachment 94671

View attachment 94672
View attachment 94673
View attachment 94674

2.Serious Jitter in Roon client mode, looks like "HiFi Crown"

SPDIF input under different PLL settings:
View attachment 94675

The situation in Roon client mode (also happens with USB input):
View attachment 94677
View attachment 94676

3.Bluetooth mode output frequency drift
View attachment 94678


Obviously, these bugs scared me:facepalm: .So I posted a "Consumption Warning" on my own website.

But when I was about to release it to ASR, Matrix Audio said that they have reproduced Bugs 1 and 2. They will release the updated firmware immediately. So I chose to wait a few days to allow them time to solve the problem.
And Bug3 finally proved to be a problem with the Bluetooth protocol.

Finally they released the bug description and new firmware:
https://www.matrix-digi.com/cn/news/20201120505.html

I will continue to follow the bug fixes and release the measurements after the firmware update.
Click to expand...
Did the mfr promise you to amend its quality control and other production procedures in order to avoid such a failure to happen next week again and again with that or other products ...... or is it just "fine that you told us" and that's it?
 
So strange, I’m listening to a Grado Ps500e, same impedance and slight better efficiency, 99dB vs 96dB, but sound is good and I can listen Very loud around -15dB...
 
capitanharlock said:
So strange, I’m listening to a Grado Ps500e, same impedance and slight better efficiency, 99dB vs 96dB, but sound is good and I can listen Very loud around -15dB...
Click to expand...
However with Topping A90 connected via 2xlr 2xlr balanced is much much better
 
I've got a Topping A90 too, connected to the Matrix trough XLR, I don't hear that big difference, but I need to check better.
Where do you find that the Topping is "much much better"?
 
More power, for sure, but with my Grado is not needed.
More details, more headstage, I wasn’t able to hear.
Less noise, definitely not.
Do you mean background noise?
 
capitanharlock said:
More power, for sure, but with my Grado is not needed.
More details, more headstage, I wasn’t able to hear.
Less noise, definitely not.
Do you mean background noise?
Click to expand...
Yes, background noise. With your Grado not, but with my Ultrasone 5 unlimited edition surely
 
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