It does have the slightest wobble and I'm not sure if that's because of the unit or because of my desk, but adding the feet ensures that it doesn't make any unwanted noise AND gives it a little extra height off the desk to help with cooling.

There is a noisy 'hiss' on EACH track, which means if you're using all 8 channels it can build up into some pretty awful white noise

I tried cleaning up the noise, hissing, room echo and everything else, to no avail.

There is a humming noise, that I have managed to get rid of MOSTLY

Behringer products are very affordable - some view them as cheap - but this is a darn functional mixer that does a great job with very good noise floor

The new one doesn't have the same high level (broken one got into the -20db range) but the new one still has a hissing noise in the -40db range

it produces a HORRIBLE white noise sound

Humming noise through the USB connection is pretty bad

Now I have no weird USB noise.

Background hissing noise and loose power plug.

This thing has this hissing noise in the sound that just would not go away

I've discovered some very minor (but definitely there) noise issues.

I wasn't expecting the best sound quality at this price, but the noise is pretty bad

I have only used this with a single microphone but so far so good, I really like this because it has gotten rid of some of the strange noises I was hearing

I set it up and noticed an awful humming noise coming from the mixer.

I bought this here on Amazon on June 3rd, 2017, and I was using this for my karaoke set up, but not 10 months later, the mixer started making this horrible noise rather than producing any sort of sound, before dying altogether

Found a Youtube solution running RCA cables to the 2-track I/O's and punching in To Phones/Control RM .

So when you want to record successive tracks, the input of the new track is delayed in the headphones compared to the old track(s)