[nickjj]

The 4i4 is just like the 2i2 (which is what I use). It basically acts as a way for you to plug in an XLR mic (or instrument) into your computer. It's classified as a USB audio interface.

It won't help you when it comes to background noise cancellation or any type of processing. For that you need something like the DBX or you can find other hardware that combos as a USB audio interface + pre-amp + processor (with comparable options to the DBX). I don't know of any offhand but maybe something exists.

Also, you can go the software route too to avoid needing any hardware (and just use a USB mic), but it gets a little more complicated. OBS supports VST plugins which is straight forward enough, but if you plan to record in other programs you won't have those effects applied.

Or you can delve into the wonderful world of software based audio redirecting where you can redirect the output of a DAW like REAPER into another app as input to capture and process audio in real time. I did this for years until the software I used stopped working due to the author dying and his license server went offline. Alternative software doesn't exist on Windows with the requirements I had so I decided to go with hardware.

The cool thing about the AT2005 mic I recommended from earlier is it has a USB and XLR connector, so you can try both out.

[balfirevic]

I know what both of those are, I was asking if there was anything with functionality of DBX but with a form-factor of Scarlett 4i4. It doesn't even have to have an integrated USB audio interface, although that would be cool.

Thanks anyway for the recommendation of DBX.

[nickjj]

Oh sorry, I missed the part about being "the size of the 4i4". I thought you were thinking about using the 4i4 as a replacement to the DBX.

The DBX doesn't need to be mounted to a rack btw. It sits clean on any flat surface like your desk. The only thing that's not optimal is it doesn't have a power switch on it and you should keep it off when not using it.

Personally I have mine hooked up to a surge protector with an on / off switch, so I don't put any stress on the plug. You could also use a remote control surge protector so you don't need to fiddle with manually turning it on / off like a barbarian.