The Steinberg AXR4T is a thunderbolt audio interface with a panoply of connections, a variety of digital I/O configurations, and four Hybrid preamps with Rupert Neve Designs' Silk processing. This processing allows you to impart subtle harmonic saturation to give your sound more heft, grit, or warmth.
This interface itself is capable of capturing audio at sample rates and resolutions of up to 384 kHz / 32-bit, enabling a highly-detailed reproduction of transients as well as an increase in headroom over 24-bit converters. The unit provides SSPLL (Super Suppression Phase Locked Loop) clocking technology to mitigate sound issues associated with jitter. Indeed, SSPLL will make all your connected gear work virtually jitter free.
The AXR4T connects to your host computer over Thunderbolt 2, providing two system expansion ports. AES and ADAT Optical conversion are available on the rear panel as are eight 1/4" line inputs and eight 1/4" line outputs.
On the front of the device, you'll find four combination XLR-1/4" inputs with Yamaha's Hybrid preamps and the aforementioned RND Silk circuits. Use this for your mics, instruments, and any line-level instruments you wish to record. Two headphone outputs on the front panel sport their own dedicated level knobs.
Indeed, the dspMixFx mixing application for the AXR4 makes the setup of the unit a straightforward affair, interfacing with your chosen DAW seamlessly, and giving you full access to all necessary routings and controls. A metering window provides an overview of all input and output levels.