Designed for simplicity, durability, and portability, these audio interfaces provide the simultaneous A/D conversion and transmission of up two analogue audio sources, at a rate and resolution up to 96kHz and 24-bit, to a computer over a high-speed USB 2.0 interface. Audio may be processed and recorded in DAW software, such as the included copy of Steinberg's Cubase LE4, and two channels of audio can be returned, from the computer to two RCA (phono) outputs; a two-track digital S/PDIF input and output are provided additionally on the US-144mkII. Musicians and recording engineers alike, who are seeking a compact and sturdy USB audio interface to pair with a laptop computer for song-writing, rehearsal, or location recording, may find the US-122mkII or US-144mkII suitable.
Inputs consist of two XLR microphone-level sockets, with switched phantom power and two 6.35mm jack sockets, one of which may be switched between a microphone or line input, and a guitar input. Two analogue inputs may be connected at once; their levels may be adjusted using independent rotary controls and displayed by LED indicators. Output is to a 6.35mm stereo headphone output, and two RCA (phono) outputs, the level of which is adjusted by a single rotary control. As well as audio, this USB-powered interface carries MIDI data to and from the standard 5-pin MIDI output and input. Direct connection of the input signals to the outputs allows zero-latency monitoring.
Microphone inputs: XLR, -58/-14/+2dBu minimum/nominal/maximum, 2.2k ohms, balanced. Jack inputs: -40/+4/+20dBu minimum/nominal/maximum, 15k ohms, balanced, mic/line level; -51/-7/+9dBV minimum/nominal/maximum, 1M ohms, unbalanced, instrument level. Sampling: 44.1/48/88.2/96kHz. Quantization rate: 16/24-bit. Outputs: -10/+6dBV nominal/maximum, 200 ohms, unbalanced; 18mW maximum, 32 ohm load, headphones. USB interface: B type, 4-pin, USB 2.0. Response: 20Hz-40kHz, +0.5/-1.5db, 96kHz, mic input to line out. Noise, Distortion: -96dB, 0.0045% THD, through ADC and DAC. Power source: USB bus power. Dimensions: 135.4 x 179 x 47mm (w x h x d). Weight: 0.7kg.
Included accessories: USB cable, CD-ROM containing driver and manuals, DVD-ROM containing Cubase LE4 software.
US-144mkII
Functionality in this model is the same as the US-122mkII, except for the inclusion of a two-track digital S/PDIF input and output, allowing the simultaneous transmission of four audio tracks across USB, and the addition of an extra rotary control, allowing independent control of the line-out level and headphones level.
Performance and dimensions: As the US-122mkII excepting the following. Noise / Distortion: -98dB, 0.0045% THD, through ADC and DAC.
Included accessories: As the US-122mkII