Presonus Quantum ES4

Is bought this the moment it was available. I use studio one, so I like the integration.
Everything works as advertised and it’s a good sounding interface (although the headphone output didn’t sound amazing with my headphones below 80 ohms).

The reason I had to return it however, is that it seems to have pretty mediocre shielding from electrical interference. If you have an outlet, or power source (in my case even just the USB A cable connected to my bass station II) you’ll hear a buzzing sound in your recordings.

This was a real bummer for me, cause I liked everything else about this interface a lot.

I’m not advising against buying it perse, maybe in your setup you’ll have hardly any interference and it’s not a problem at all. But for me it was very noticeable.

Gives a fair amounth of inputs and 2 great jack inputs for instruments ( thank you fender for co-working). The 2 headphones are also perfect for having a collaboration with someone without needing a splitter. The design feels professional and the Auto-Gain feature works as it should. I upgraded from a 2 inputs to this one while using a small desk and didn't want an audio interface that was going to take over the desk. This one is exactly what I wanted for a portable, flexible and well built audio interface.

Sidenote : The 1 and 2 inputs have a combined gain at default but you can unbind them in the Universal Controll application.