Hi, i had this mixer since 2016 and recently no more sound on the group 1 output.

So i took the mixer apart and the 16v 47uf capacitor was blown, the one on the group2 output was not in a good shape either(after testing, only 10uf remained).

I replaced the two with the exatly same brand, voltage and capacitance but after a few hours, the capacitor on group 1 exploded again and the one on group 2 is swollen, even though they were new.

I've looked at the other capacitors and they don't seem to have a problem, the mixer works perfectly otherwise(usb, master output, aux output..).

I wanted to know if anyone has had the same problem as I'm not good enough with electronics(my english is worse).

If I may as an obvious question: did you make sure the new capacitors were installed with the correct polarity ("-" strip installed with same orientation as the caps that were replaced)? Electrolytic capacitors are not tolerant of backwards polarity.

Yes, i checked but the problem still occurs, I think it comes from my focusrite 18i20 (the master outputs of the 22mtk are connected to inputs 3-4 of the focusrite). I have the impression that something is wrong with the focusrite, and it's not the xlr cables that connect the two... I checked with a other audio interface and no capacitor fail... It's a very strange problem.

Can you describe which cable you need to disconnect? I did this on my last one, which was already ailing in a number of ways including quiet but permanent clicking on the main out (even when USB was not plugged in). So following your post, I disconnected what I thought was the right cable and when I plugged back in it started blowing fuses. I believe I disconnected the "USB Power" port, not the actual USB/Effects power so then I disconnected the line near the 21/22 USB connection and still kept blowing fuses.

Obviously this worked fine for you but I'm wondering if disconnecting the line somehow puts too little load on the PSU causing it to fry (if that even makes sense)? I have a new MTK now and would like to disconnect the effects/USB to LOWER the load on the PSU to prevent it wearing out too quickly.

Has this been discontinued? Don't know how reliable a gauge this is, but I just noticed Sweetwater's page for the 22 MTK has their usual copy for a discontinued product ("no longer available," "for reference only" etc.) Meanwhile the non-MTK Signature 22 is only listed as backordered.

Would be neat if this was in anticipation of an improved version, maybe with inserts and aux returns, but I don't know which way the wind is blowing on analog mixer / audio interface hybrids, or budget analog mixers in general...

wouldn't hold my breath, Soundcraft was acquired by Harman and I'd imagine people responsible have left/working on other products.

SSL Big six is the ticket for premium, on the low end maybe Behringer will put out a multichannel version of their hybrid desks at some point?

Between Behringer and SSL there is still the Zoom Livetrak series, the Tascam Model series and if a touchscreen is allowed to replace physical controls, the new A&H CQ series.

It's still on the Soundcraft site, and a few other music sites. More telling, it's still listed in stock on Amazon - which guarantees that they have them and are selling them.

But it's definitely got the "discontinued" page at Sweetwater, which is usually a pretty good indication that it's been discontinued.

any alternatives to this? i've been tearing my hair out the last month trying to figure out a setup.

its for a home project studio but i want to leave all my mics connected so i dont have to always disconnect reconnect. i have synths, mics (guitars) etc.

this board fit the bill for everything + has some nice analog goodness.

im scared of reliability though, i found a fb group which sells psu parts replacement. going by this thread though, seems like ppl have had other issues with this unit. . . .

Had the MTK22 approx. 4 years now. Never dropped it, always kept it in GREAT shape, just sitting on a desk; started propping the unit upwards once I noticed overheating issue underneath unit (design flaw, lol). No issues at all, until... USB decided not to work, with Windows 10 not recognizing the driver (even after allowing "Digitally Unsigned" drivers on the system). I also have the issue where the LED's on the FX panel are ALL lit up as Blue and/or White. I DID, also, leave the unit on 24/7, sometimes for days at a time; as I'd also use it for simply watching youtube vids and routing movies to nicer, larger monitors. Looks as if it didn't make a difference, for me at least, whether I was judicial about whether or not I was "conserving" the unit by only powering it on in small instances, just a few hours at a time, or leaving it on for days on end... appears as if the eventual failure of the USB, is going to happen eventually, anyway.

Thankfully I have another interface already, an Antelope Amari (which I was JUST using for Mastering). But I really like the whole front-end capability of the MTK22, and I don't want to lose the ability to have the amount of flexibility the unit offers, as well as being able to keep all of my guitars and synths plugged into it without having to unplug/replug every single session. I like the ability to just leave everything plugged in, for speed, just pick up an instrument after powering it on, and have it work like I can expect it.

So... my temporary solution is going to be to continue to use the MTK22 as a front-end recording device, but... I'm just going to route the audio out from the Master group XLR into the AMARI, and then connect the AMARI USB (which never fails) into Ableton.

If you're in a state of sadness regarding the loss of the USB, but at the same time don't want to let go of the board, you can try to reroute your master audio to an other interface, and then use that second interface as the final capture point for your audio.

Personally, I'm not happy about losing USB functionality, as I intended to use it exclusively as my front-end recording device. But at the same time, just totally not looking forward to getting a whole other unit (e.g.- spending another 2-3k on another unit just like it, after already spending approx. 1000 on this one).

Therefore, my solution is going to be to continue to use it's analog/routing functionality for plugged instruments; but just compensate by rerouting to an external AD/DA converter.

Worth asking on the FB group https://www.facebook.com/share/g/1Cy...ibextid=wwXIfr

I fixed my power issue on the MTK following instructions to replace a couple of resistors. Maybe the USB issue is fixable

It has nothing to do with how you used it, whether you left it turned on or any other thing. It is purely caused by the undersized capacitors used in the 5 volt power supply of the unit. It's extremely easy and inexpensive to fix, I replaced those capacitors on my unit for about a dollar, and the unit ran for years afterwards. I used quality capacitors, unlike the ones Soundcraft used. Don't despair, just do the fix, or take it to someone who can do it for you. It's a dead simple fix and solves the problem permanently.

If I don't do anything at all to modify the unit (e.g.- don't nullify a warranty), and I leave it on, and it causes a house fire and burns down the entire apartment complex, and the company doesn't issue a recall... can I get a million dollars? :P

No

No - read the warranty.