11/2019 Paul Vnuk Jr. wrote a detailed RECORDING review of M4U eX and M8U eX: "Both the ESU M4U eX and M8U eX are well built, rock-solid boxes with old school MIDI connectivity for days all with a modern USB 3.0 edge and workflow. Nicely done." - you can check the full text here as PDF.

The February 2019 issue of Sound on Sound features a review of our M8U eX written by Paul White. Here is a quote: "a very flexible MIDI interface - and one that puts in a solid performance to boot" - check the full text of the review here.

In the 10/2019 issue of Beat (Germany), Jan Wilking wrote about our M4U eX: "The sturdy and nifty MIDI interface can be used with the computer and standalone and provides innovative features at an affordable price" - you can read / download the full German review as PDF here.

Mike Metlay checked out MoCo for the March 2018 issue of RECORDING (USA): "The MoCo is everything you need in a basic passive monitor controller for a very reasonable price." - you can read or download the full review as PDF here.

G.W. Childs IV of AskAudio checked out our U168 XT. Beside a detailed description of it's sexy package, he really liked it and explains why. Check the full review here - it was even listed as one of the best audio interfaces of 2017!

In the 8/2019 issue of Beat (Germany), Jan Wilking wrote about our U168 XT: "The USB interface has sixteen analog inputs despite the low price of around 400€. In this price range, the competitors offer a maximum of just half the number of inputs."

The September 2018 Sound & Recording (Germany) contains a review of M4U eX from Axel Latta: "The new ESI interface provides good build quality (...) there is a high flexibility for integration into your own setup." - you can read / download the full German review as PDF here.

The May 2016 issue of Sound on Sound features a review of uniK 05+ by Paul White. Here is a quote: "have a very grown-up sound and shouldn't be ignored" - check the full text of the review here.

Mike Metlay wrote in RECORDING May 2017 (USA) a review of our U22 XT: "... does it job with no fuss." / "... all users will like how this interface treats their sound." - you can read and download the full review as PDF here.

Onkel Sigi of popular german magazine Amazona reviewed uniK 08+ and mentioned: "They sounds rich and comfortable, and have a lot of power in addition" / "good detail solutions" / "very well built" / "affordable for the features" - read the full german language review here!