USBPre 2 portable high-resolution audio interface Sound Devices' USBPre2 is a high-resolution, portable hardware interface for Mac- and Windows-based digital audio. The USBPre2 is the industry's highest performance and most flexible portable interface, connecting professional microphones, line-level sources, consumer audio electronics, and S/PDIF digital sources with Mac OS and Windows computers via USB. Precision microphone preamplifiers: USBPre2 includes two discrete-transistor microphone preamps with 24-bit converters and sampling rates up to 192kHz. These preamplifiers provide the highest performance in any portable interface. Their topology is shared with Sound Devices' award-winning 744T digital audio recorder. Peak limiters, high-pass filters, and a 15 dB pad provide overload protection. All analog-to-digital and digital-to-analog conversion is performed by the USBPre2 for superior audio performance. Computer connectivity: USBPre2 is a class-compliant audio device. This allows for simple plug-and-play connection to computers running Mac OS, Windows, and Linux. There are no drivers to install for the USBPre2 and there are no software-only features. All additional controls and settings are available on back panel DIP-switches. The USB port also provides power to the unit, both when connected as an audio interface and when used in stand-alone operation. Output connectivity flexibility: to interconnect with sound systems big and small, the USBPre2 includes numerous output connection types, including balanced mic- or line-level on XLR, unbalanced consumer line-level on RCA, S/PDIF coaxial (RCA) and optical (Toslink). The outputs have their own, dedicated front-panel level control. Use the balanced line-level signals to connect to powered loudspeakers. Use the optical S/PDIF to connect to hi-fi systems. Use the coaxial S/PDIF output in Stand-Alone mode for a portable microphone preamplifer with digital output for any production application. Informative metering: accurate signal level metering is essential for any sound engineer. The USBPre2 includes a 23-segment, multicolor LED meter for precise level indication. The meter is switchable between input signal metering and playback signal metering. The meter indicates both VU and peak (PPM) ballistics. Stand-alone operation: the USBPre2 can be used in stand-alone mode where it operates as a high-quality, portable microphone preamplifier and analog-to-digital converter. Digital signals connected to the USBPre2 are converted to analog and available at the headphone, XLR, and RCA outputs. Stand-alone operation requires the unit to be connected to a USB power source. Stand-alone mode is a great option when an additional microphone preamplifer, A-D converter, or D-A converter is required. Field-tested reliability: like all of Sound Devices products, the USBPre2 is designed to stand up to the most demanding environments. Its extruded aluminum chassis and aluminum panels, machined knobs, metal connectors, and laser-etched nomenclature are designed to hold up to years of abuse. Class compliant drivers: as a class-compliant audio device, the USBPre2 is limited to a maximum data rate of 24-bit, 48kHz in Windows, Linux, and Mac OS versions 10.4 to 10.5.7 Mac OS 10.5.8 and higher support the audio class 2.0 device and can address the USBPre2 up to 24-bit, 192kHz. To enable higher sampling rates in Windows OS, download the available Windows ASIO driver.
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