Get the 2-channel UR-RT2 USB audio interface here: https://www.sweetwater.com/store/detail/URRT2--steinberg-ur-rt2-usb-audio-interface-with-2-rupert-neve-transformers
Get the 4-channel UR-RT4 USB audio interface here: https://www.sweetwater.com/store/detail/URRT4--steinberg-ur-rt4-usb-audio-interface-with-4-rupert-neve-transformers
Steinberg UR-RT audio interface combine the company's acclaimed D-PRE Class A preamps with switchable Rupert Neve Designs input transformers to deliver a rich musical sound with enhanced harmonics. They offer zero-latency monitoring with effects using dspMixFx software and the interface's integrated SSP2 DSP. Included is the VST 3 Basic FX Suite with the Sweet Spot Morphing Channel Strip, REV-X reverb, and Guitar Amp Classics plug-ins. You also get Cubase AI DAW software for Mac/PC and Cubasis LE for iPad. But it's the Rupert Neve transformers that make the Steinberg UR-RT series truly special. Mr. Neve is a legendary pro audio designer and the UR-RT interfaces add his renowned sound quality to compact 24-bit/192kHz USB 2.0 interfaces that offer flexible I/O, rugged build quality, and outstanding value.