The ART USB Dual Pre is a portable, full-featured dual preamp and USB computer interface boasting two low noise input channels (fully balanced XLR and 1/4" TRS combo) with phantom power that offer up to 48 dB of clean gain. A 1/8" TRS mini headphone jack with level and monitor mix controls gives you latency-free local monitoring of the inputs while recording, as well as playback monitoring of the USB bus. The monitor mix is also routed to the 1/4" TRS balanced outputs so you can use them as either preamp outputs or as the monitor feed to your powered monitors.
The ART USB Dual Pre can be externally powered from the mains via a 12 Volt DC adapter (not included), or from an internal 9 Volt battery, or from the USB bus itself, or any combination of these power sources.