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Sound Devices
USBPre
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USBPre Microphone
interface for Computer Audio
This model has been replaced by USBPre
2
The complete, portable hardware interface for PC-based digital
recording. Quickly and easily interfaces microphones, musical
instruments, line level, and digital audio with personal computers.
Designed for USB-equipped Macintosh® OS 9.x, and
Windows (98SE®, ME, 2000®, XP)
computers. Version 1.5 hardware includes S/PDIF coaxial I/O to
the analog inputs.
| C931-TA-XL-2 |
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| TA3-F to XLR-M 15"
Adapter Cable |
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Product
Code:USBPRE
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Features
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Dynamic range
greater than 106 dB (in 24-bit operation)
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Flat 10 Hz to 22 kHz
audio bandwidth
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Exceptionally low
distortion characteristics
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Two inputs accept
microphone, instrument, line, or tape level inputs
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Input type is
selected per channel — allowing two different signal types
simultaneously
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Phantom power (48
volt) for condenser microphones
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S/PDIF coaxial input
and output
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Six-segment LED peak
input meter
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High-power headphone
monitor
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Mix control enables
headphone monitoring of analog source audio, computer audio, or a
mix of both source and computer audio
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Phono (RCA) jacks
connect PC AUDIO output to external loudspeakers or
preamplifiers
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Bus powering from
the USB port eliminates external power sources and
batteries
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High-strength
extruded aluminum chassis
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Compact dimension
(4.4 cm H x 18.5 cm W x 10.0 cm D)
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Mac®
OS 9, Sound Manager compatible, OS X Core Audio
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Windows
98®, ME®, 2000®,
and XP® Wave audio and DirectSound
compatible
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ASIO for both Mac OS
9 and Windows
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| Specifications |
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| Frequency
Response: |
(reference 1 kHz) 10 Hz - 20 kHz, ±0.5 dB (any input
to PC recording) 10 Hz - 20 kHz, +/- 1.0 dB (PC source to PC audio
out) |
| E.I.N.: |
(mic inputs) -124 dBu min. (10 Hz -
22 kHz bandwidth, 150 ohm source, gain control at 50% or more, 15
dB pad out) |
| Output
Impedance: |
PC audio -3.3k ohms, headphones - 20 ohms |
| S/PDIF
Digital: |
24-bit maximum input, 20-bit
maximumhardware output (limited to 16-bit output in Windows Me and
OS 9 Sound Manager), sample rate and bit depth selected by
recording software and operating system |
| Sample
Rates / Bit Depths: |
Recording: 8, 16, or 24-bit at 32, 44.1, 48 kHz
Playback: 8, 16-bit at 5 to 55 kHz, will play back 24-bit sources
at 16-bit |
| Master
Clock: |
(recording) PLL generated, low
jitter |
| Metering: |
input level at A/D converter, 6- segment, 30 dB total
range, peak responding, 0 dB on meter = 0 dB FS (0 dB referenced to
Full Scaled Digital) |
| Phantom
Power: |
48 V through 6.8k W resistors, each
mic input will supply 10 mA |
| Powering: |
USB bus powered, 3 stage soft-start meets USB hot-plugging
power requirements, 5 V, 350 mA quiescent current from USB port, 5
V 500 mA max current from USB port |
| THD+N: |
(10 Hz - 22 kHz measurement
bandwidth) 0.05% max. (any input to PC recording, gain control at
min., input driven to -6 dB FS) 0.009% max. (PC audio output, 0 dB
FS output, 100k ohm load) 0.05% max. (headphone output, 2 V rms
output, 600 ohm load) |
| Output
Clipping Levels: |
(1% THD, Windows mixer/Mac volume at max.) PC audio: +8
dBu (2.0 V rms) w/ 100k ohm load headphones: +11 dBu (2.75 V rms)
w/ 600 ohm load |
| A/D
Converter: |
24-bit resolution - no dither
added104 dB min. dynamic range, 24-bit mode (10 Hz - 22 kHz
bandwidth, A-weighted) 96 dB min. dynamic range, 16-bit mode (10 Hz
- 22 kHz bandwidth, A-weighted) |
| USB: |
Fully compliant USB 1.1 device |
| D/A
Converter: |
16-bit resolution, 90 dB min.
dynamic range, 24 and 16-bit mode (10 Hz - 22 kHz bandwidth,
A-weighted) |
| Dimensions: |
(unpackaged):4.3 cm x 18 cm x 10 cm (H x W x D) 1.7 in. x
7.25 in. x 4.25 in |
| Weight: |
0.5 kg ; 1.13 lbs |
| Certifications: |
meets FCC Part 15 Class B, Complies with the requirements
of European Directive 89/336/EEC |
| Included: |
USB Cable, software installation
CD-ROM for Mac OS (9 and X) and Windows OS, rubber
feet |
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