USB 3.0 SuperSpeed
The USB 3.0 SuperSpeed transfer protocol supported by the UAC-2 is ten times faster than USB 2.0 and six times faster than FireWire 800. The result? Low latency (2.2ms roundtrip @ 96kHz / 32 samples) for improved performance from your DAW software, and a stable data stream that is unaffected by computer jitter (slight variations in timing), so there's no need to connect an external master clock source. What's more, the extra bus voltage carried by USB 3.0 (900 mA, as opposed to the 500 mA carried by USB 2.0) allows for the use of higher-end electronic components such as the advanced preamps and converters in the UAC-2.
AD / DA conversion
The UAC-2 uses high-end components such as the Burr Brown PCM4202 analog-to-digital converter and AKM AK4396 digital-to-analog converter. In addition, the UAC-2 performs 4-times upsampling during both analog-to-digital and digital-to-analog conversion. In other words, when the sampling frequency is set to 44.1kHz or 48kHz, the UAC-2 processes the signal at high resolution 176.4kHz or 192kHz. For A/D conversion, this means less aliasing noise; for D/A conversion, this means increased clarity and fidelity.
Make the MIDI connection
The UAC-2's MIDI input and output connectors ensure rock-solid synchronization between your computer and devices such as electronic keyboards, controllers, drum machines, and synthesizer or sampler modules.
The Ins and Outs
The USB 3.0 connector on the rear panel carries digital signal to and from your computer in addition to providing power to the UAC-2—no batteries or external power required. Dual front panel combo XLR/TRS inputs allow you to connect a wide variety of microphones as well as line-level signals from electronic keyboards and music players—even passive instruments such as electric guitars and basses.
Dual balanced TRS output jacks enable you to connect the UAC-2 to amplifiers or self-powered speakers, and there's an independent ¼" stereo headphone jack with dedicated volume control for private monitoring of the input or output signal. The UAC-2 is the first-in-class USB interface that performs 4-times upsampling during both analog-to-digital and digital-to-analog conversion (so that, for example, when the sampling frequency is set to 44.1kHz or 48kHz, the signal is processed at high resolution 176.4kHz or 192kHz, respectively). For A/D conversion, this means less aliasing noise; for D/A conversion, this means increased clarity and fidelity.
Dedicated input gain controls and Clip LEDs make it easy to set optimum input levels, and a large Output knob enables fast control over overall output level. A phantom power switch applies +48 volts to the mic inputs, allowing you to use the UAC-2 with studio-quality condenser microphones, and a three-way Direct Monitoring switch enables monitoring of input signal with zero latency in both mono and stereo. MIDI In and Out connectors allow interfacing with devices such as electronic keyboards and drum machines. Last but not least, a Class Compliant Mode switch enables the UAC-2 to be connected to an iPad.*
* Optional power adapter and Apple Camera Connection kit required.
Extend your capabilities with software
UAC-2 MixEfx is a free Windows / Macintosh application designed specially by Zoom for the UAC-2. With UAC-2 MixEfx, you can set mix parameters and add high-quality effects such as reverb and echo. Other features include a low cut filter, phase reverse, AUTO GAIN control for each input. UAC-2 MixEfx even has three memory slots for saving user settings with quick recall.