The Ai-1 Usb Audio Interface adds studio-quality Input and Output capabilities to your Pc or Mac, turning your recording software into a full recording setup. With its high quality Neutrik Xlr-1/4"" Combo Jack combined input and discrete Class-a preamp, the Ai-1 allows you to connect a microphone or instrument or line level audio signal to your Mac/Windows computer for recording. The Ai-1 provides the necessary A/D conversion at up to 24 bit/96kHz. The Ai-1 also allows playback and monitoring of audio either direct from the microphone or via playback from the recording software. This is done via a high-quality discrete headphone amplifier and outputs via either the 1/4"" headphone output on the front of the unit or the balanced 1/4"" outputs on the rear of the unit..