It's more of a (marketing) gimmick though. I like the mode for darker sounding acoustic guitars. It's not bad in any way, but the same effect can be achieved with software. The 4K mode adds high end, boosts overall volume and seems to add a bit of additional gain. Nothing to write home about, but also not bad. Latency is comparable with a lot of other of these bus powered interfaces. When pressing the phantom power button all inputs are briefly muted, which is a nice feature that I haven't seen before on units in this price range. Two headphone mixes are a welcome addition! Some other interfaces have buttons on the back and I dislike that greatly. I like it that all the buttons are on the top panel and that all the cables are on the back panel. A bit too small for my taste, since turning them only a little bit (like 0,2 mm or something) is a bit easier with bigger knobs (for me atleast). Really nothing bad to say about the pre-amps. Other interfaces I use or have used are Roland Quad-Capture, Focusrite Scarlett, Focurite Clarett and some RME stuff. Some notes from my point of view after full-time using it for about 5-6 weeks. Always with customised added value for musicians. +49(0)9546 from the shop, you can discover a wide variety of additional things - forums, apps, blogs, and much more. This also affects the price - to our customers' benefit, of course. +49(0)9546 expert departments and workshops allow us to offer you professional advice and rapid maintenance and repair services. +49(0)9456 members of our service staff are musicians themselves, which puts them in the perfect position to help you with everything from your choice of instruments to maintenance and repair issues. Alternatively, please feel free to use our accounts on social media such as Facebook or Twitter to get in touch. +49(0)9546 have a wide variety of pages giving information and enabling you to contact us before and after your purchase. As a company, we have a single objective: making you, our customer, happy. We are musicians ourselves and share your passion for making it. Thomann is the largest online and mail order retailer for musical instruments, light and sound equipment worldwide, having about 10m customers in 120 countries and 80,000 products on offer.

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