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Two-Channel Microphone Interface for Computer Audio
Sound Devices USBPre 1.5 is a complete, portable hardware interface for computer-based digital recording. Designed for USB-equipped Macintosh® OS 9, OS X, and Windows
(98SE®, ME, 2000®, XP) computers, USBPre quickly and easily interfaces studio microphones, line-level sources, musical instruments, and consumer audio electronics with personal computers. Its high-quality,
24-bit audio inputs offer the most direct signal path into the computer.  All analog-to-digital conversion is done outside of the computer, in the USBPre, for superior audio
performance. S/PDIF coaxial I/O enables direct digital transfers into and out of the computer.
USBPre has the flexibility to work with most Windows and Mac recording, streaming, and measurement software. Powered
solely by the USB port from either notebook or desktop computers, no additional power source is required — the computer provides all power needed for operation. The
durable construction and compact size of the USBPre allow no-compromise digital recording everywhere.
KeyFeatures
- Dynamic range greater than 106 dB (in 24-bit operation)
- Flat 10 Hz to 22 kHz audio bandwidth
- Exceptionally low distortion characteristics
- Two inputs accept microphone, instrument, line, or tape level inputs
- Input type is selected per channel — allowing two different signal types simultaneously
Phantom power (48 volt) for condenser microphones
- S/PDIF coaxial input and output
- Six-segment LED peak input meter
- High-power headphone monitor
- Mix control enables headphone monitoring of analog source audio, computer audio, or a mix of both source and computer audio
- Phono (RCA) jacks connect PC AUDIO output to external loudspeakers or preamplifiers
- Bus powering from the USB port eliminates external power sources and batteries
- High-strength extruded aluminum chassis
- Compact dimension (4.4 cm H x 18.5 cm W x 10.0 cm D)
- Mac® OS 9, Sound Manager compatible, OS X Core Audio
- Windows 98®, ME®, 2000®, and XP® Wave audio and DirectSound compatible
- ASIO for both Mac OS 9 and Windows
Front Panel Features
- Gain control for each input channel
- 48 V phantom power switch for mic inputs
- Input selection LED's and switch for the various input types
- Front panel meter calibrated in dB FS
- Headphone volume control
- Headphone "Mix" Control, controls monitoring source audio and computer audio
- Mono Headphone Monitoring Switch folds analog input sources to mono in the headphones.
Input Panel Features
- Two-XLR inputs for balanced and unbalanced microphones
- 1/4-inch shared connectors for balanced and unbalanced line level sources and unbalanced high Z instruments
- RCA connectors for Aux level sources.
Output and S/PDIF Panel Features
- Two stereo headphone output jacks, 1/8-inch and 1/4-inch
- PC audio output carries computer audio signals
- S/PDIF input and output connects
- USB connector carries all connections and power with the computer.
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