The UR-RT4 is a premium six input, four output USB 2.0 audio and MIDI interface with switchable Rupert Neve Designs transformers on the front inputs. Combined with the onboard, high-quality D-PRE preamps, the Rupert Neve Designs transformers deliver a musical, more expressive sound with rich harmonics, which is especially beneficial for vocals, acoustic guitar and other instruments with a versatile dynamic range. Offering a studio quality, mobile production platform with a range of input/output options for laptop and iPad, the onboard SSP2 DSP chip also delivers zero-latency FX for monitoring. The robust UR-RT4 is engineered to offer outstanding quality for its price class, making it the ideal portable production interface for PC, Mac or iOS.