iLoud MTM high pitched hiss (louder on one monitor)

[towerSphere1]

I would also like to share my experiences with this issue:
Bought one pair from Thomann January of this year, unfortunately both speakers had exhibited this problem, so I was forced to return them. Sadly I did not note the serial numbers.
Learned about the new hardware revision from this thread, so I thought I'd order another pair from a local store this month, but they still had the coil whine present, so it was another quick return. In both cases only the power cable was attached.
Serial number was: IUD04-61YFAD**-*****
And on the bottom of the speakers there was a sticker with 220303** which probably indicates the manufacturing date? But I am not sure how to read that so it might be something completely different, so take that with a grain of salt.

Edit: The second pair I ordered came with the firmware that allows for the 80 Hz low cutoff setting, so it had to have been at least version 1.2.0.

[daslicht]

the number on the bottom is actually the serial number according to the official IKMultimedia support. The serials of my first speakers were: 210401** and 210400**

[daslicht]

BTW I decided to return the second batch and just use the first @110V done

Here the Bezel difference I mentioned before, see the right looks more filigran:

[Wungakum696]

The solution is to plug monitors to another power strip than computer. Especially if you're a Mac user. It is a common problem in mac environments with audio hardware. On my pair I heard the total work of my processor, loud noise and
squeak modulated depending on my activities on the computer. Hope that advice helps a few users. All the best.

[daslicht]

The solution is to plug monitors to another power strip than computer. Especially if you're a Mac user. It is a common problem in mac environments with audio hardware. On my pair I heard the total work of my processor, loud noise and
squeak modulated depending on my activities on the computer. Hope that advice helps a few users. All the best.

I kept the first batch and it works perfect @110V no noise whatever

[DennisFassbaender82]

Just had the same problems in a 230v environment and i know the correct solution:
Use balanced XLR cables! I have used expensive high quality audio cables and had so much noise in my MTM´s that i though there is no way to solve it. After switching to new cables (Klinke to XLR BALANCED) all noises are gone completely!
Bought "Nuosiya balanced audio cable". Try it

[daslicht]

Just had the same problems in a 230v environment and i know the correct solution:
Use balanced XLR cables! I have used expensive high quality audio cables and had so much noise in my MTM´s that i though there is no way to solve it. After switching to new cables (Klinke to XLR BALANCED) all noises are gone completely!
Bought "Nuosiya balanced audio cable". Try it

I also have balanced audio cables.
Which noise does disappear for you?

The noise @ 230V also appeares here without any cables attached.
It is produced by the voltage generator and not emmited by teh speaker itself.
You onluy got that noise with cables attached ?

[Sievrp1audio]

If I bought coverter from 230V to 110V this would solve my problems?

[daslicht]

If I bought coverter from 230V to 110V this would solve my problems?

In my case, it did

[nefariousone]

Has there been any official response to this issue? I've contacted support earlier this year and after some back and forth they told me to stand by, but I haven't heard anything back since, and it's been months...


"Thanks for your patience while we got back to you.

Thank you for your patience.

We have contacted our team about your situation.

Please stand by."


An odd support experience to state lightly... :/

[Sievrp1audio]

I've discovered coil whine is lost when speakers are turned on for more than 2days,
I don't shut them down and that's a fixed issue!

[daslicht]

I've discovered coil whine is lost when speakers are turned on for more than 2days,
I don't shut them down and that's a fixed issue!

Interesting. Today I started my setup and one speaker started to chirp again even @110V

[CristianTroncoso]

Hi, Same issue here, I have 7 IK Monitors, and I am having noise issues with at least 4 of them

I already tried everything. I am using 4 Furman Racks power protection to get better clean power. I am using XLR balanced audio cable, all professional audio interfaces RME, UAD.

Thank you.
Cristian T.

[cwijers]

This is the most disgraceful treatment I've ever had by a company.

After 2 years I'm still stuck with one MTM having coil noise. For two years I have been in touch with support but there were only empty promises. The last two months they have failed to reply at all.
From "there is COVID, we have to wait until we receive new parts" to "next week we'll send a courier to pick up your MTM". Nothing, nothing nothing.

[mod redacted - please review the rules when posting]

[cwijers]

If I bought coverter from 230V to 110V this would solve my problems?

In my case, it did

It should not be necessary to buy an additional piece of equipment to make it run right.
They should take all of them back and fix them immediately.