Propellerhead 99-101-0026 Balance with Reason Essentials 2-in by 2-out audio interface USB 2.0  bus powered Hi-end pre-amplifiers Hi-end 24-bit ADC/DACs, 44.1 to 96kHz, Low latency design Clip Safe - Never again a lost take because of inadequate level settings. The built-in recording engineer watches over your session and automatically heals any clipped recordings.