Sound Devices USBPre 2 Microphone Interface for Computer Audio

Sound Devices
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VG # SOUSOUUSBPRE2 • MFR # SOU.USBPRE 2
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Main Features
  • USB Interface
  • Phantom Power
  • 15dB Pad
  • Mac OS X
  • 2 Channel
  • Portable and Roadworthy
  • Limiters and High-Pass Filters
  • Metering
  • Windows XP/Vista/7

Sound Devices’ USBPre® 2 is a high-resolution, portable hardware interface for Mac- and Windows-based digital audio. The USBPre 2 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
USBPre 2 includes two discrete-transistor microphone preamps with 24-bit converters and sampling rates up to 192 kHz. 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 add overload protection. All analog-to-digital and digital-to-analog conversion is performed by the USBPre 2 for superior audio performance.

Computer Connectivity
USBPre 2 is a class-compliant audio device. This allows for simple plug-and-play connection to computers running Mac OS, Windows, and Linux (see note to the right on Class-Compliant Drivers). There are no drivers to install for the USBPre 2 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 USBPre 2 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 USBPre 2 includes a 23-segment, multicolor LED meter for precise level indication. The meter is switchable between input signal metering and output signal metering. The meter indicates both VU and peak (PPM) ballistics.

Stand-Alone Operation
The USBPre 2 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 USBPre 2 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 USBPre 2 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.

Frequency Response (reference 1 kHz, at 96 kHz Sample Rate)
10 Hz - 40 kHz, 0.5 dB (any input to PC recording)
10 Hz - 40 kHz, 0.5 dB (PC source to AUX output)

THD+N (22 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 (AUX output, 0 dB V output, 100 ohm load)
0.05% max (HEADPHONES output, 2 V rms output, 600 ohm load)

E.I.N. (MIC inputs)
-127 dBu min (22 Hz - 22 kHz bandwidth, 150 ohm source, gain control fully clockwise, 15 dB pad out)

Input Clipping Level (1% THD)
Mic: -10 dBu
Mic (15 dB pad): +4 dBu
Line: +28 dBu (19.45 V rms)
Aux: +9 dBu (2.18 V rms)

Input Sensitivity (typical, for 0 dB FS)
Mic: -9 dBu min, -60 dBu max
Mic (15 dB pad): +6 dBu min, -58 dBu max
Line: +29 dBu min, +10 dBu max
Aux: +12 dBu min, -7 dBu max.

Input Impedance (actual)
Mic: 4k ohm, active-balanced
Mic (15 dB pad): 4k ohm, active-balanced
Line: 60k ohm, active-balanced
Aux: 80k ohm, active-balanced

Input Limiter Threshold
Mic: -4 dBFS

Low Cut
Mic: 80 Hz, -3 dB, 12 dB per octave

Output Clipping Level (1% THD, PC-controlled output levels at max)
Balanced XLR: +18 dBu with 100k ohm load
Aux: +8 dBu (2.0 V rms) with 100k ohm load
Headphones: +11 dBu (2.75 V rms) with 600 ohm load

Output Impedance
Balanced XLR (Line level): 500 ohms
Balanced XLR (Mic level): 5 ohms
Aux: 2k ohms

S/PDIF Digital
24 or 16 bit input

A/D Converter
24-bit resolution. 114 dB typical dynamic range (22 Hz - 22 kHz bandwidth, A-weighted)

D/A Converter
24-bit resolution. 112 dB typical dynamic range (22 Hz - 22 kHz bandwidth, A-weighted)

Sample Rates / Bit Depths
Recording: 8, 16, or 24-bit at 8, 16, 32, 44.1, 48, 96, or 192 kHz
Playback: 24-bit at 8, 16, 32, 44.1, 48, 96, or 192 kHz

Master Clock
Crystal based, low jitter

Metering
48 segments, 44 dB total range, peak ballistics. 0 dB on meter = 0 dB FS (0 dB referenced to full scale digital)

Phantom Power
48 V through 6.8k ohm resistors. Each mic input will supply 10 mA

Powering
USB bus powered, soft-start meets USB hot-plugging power requirements (5 V, 100 mA max current drawn during enumeration)
5 V, 500 mA max current from USB port (USBPre 2 will not function if connected through a passive USB connection or hub)

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. (H x W x D)

Weight
0.5 kg
1.13 lbs.

Certifications
Meets FCC Part 15 Class B
Complies with the Requirements of European Directive 89/336/EEC

REVIEW SNAPSHOT®

by PowerReviews
Sound Devices USBPre 2 Microphone Interface for Computer Audio
 
4.5

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Reviewed by 4 customers

Displaying reviews 1-4

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4.0

fantastic build quality + audio quality

By zeiter

from melbourne Australia

Verified Buyer

Pros

  • ASIO driver available
  • Low noise
  • Works in XP Win7 32-bit

Cons

    Best Uses

    • Laptop portable audio
    • Quality soundcard
    • Stand-alone preamp

    Comments about Sound Devices USBPre 2 Microphone Interface for Computer Audio:

    I was initially wary as unit draws all its power from USB (no option of plug-pack) - computer USB power can be noisy & degrade audio, but is not a problem with this unit. Manufacturer's website avoids PR puff & is both useful - firmware upgrades - & honest - discusses any known problems - extraordinary!

     
    4.0

    Compact and transportable

    By John

    from Perth West Oz

    Verified Buyer

    Pros

    • Broadcast quality record
    • Great monitoring
    • Hot plug and play
    • Light and transportable
    • Really easy to use
    • Really easy use

    Cons

    • I want 16 inputs with USB

    Best Uses

    • And studio with laptop
    • Mobile

    Comments about Sound Devices USBPre 2 Microphone Interface for Computer Audio:

    Not just the best preamps but great for use as a sound card
    For playing music from your computer through some nice quality
    Home Hi-Fi speakers. If they made a device that had 16 channels with
    a USB interface it would be my studios best device.

     
    5.0

    Sound Devices USBPre 2

    By Kai

    from Brisbane Australia

    Verified Buyer

    Pros

    • 2 Headphone outputs
    • Great Sound quality
    • No drivers required
    • SPDIF
    • Well built

    Cons

    • Jumper settings confusing
    • No Midi

    Best Uses

    • Mic Preamp
    • Standalone converter
    • USB Soundcard

    Comments about Sound Devices USBPre 2 Microphone Interface for Computer Audio:

    The USBPre2 doesn't just sound good it looks good too and would be great for field recording with a Laptop computer as it is very portable. I am using it as my main sound card and am very impressed with the sound quality. For a devices this small it is great to see that it has 2 headphone outputs and also has Spdif/Toslink ins and out but no Midi. This is not really a concern as I'd rather have the digital ins and outs as Usb midi devices are not that expensive to buy nowadays.
    I have been using the USBPre2 to record in and out via digital and analog and must say I am very happy with it. Very quiet and great detail in the sound itself. What I also like is that you don't need to use a power supply as it runs of the USB cable connected to the computer, now that is impressive! You also don't need to install software mixers or drivers as the settings can be easily changed on the front panel. I have used various soundcards and it can be quite tiring to change from analog in to various mix inputs or outputs.or headphone mixes. So it's a nice welcome to get a great quality piece of gear for a great price ! I will keep this device for sure :)

    (2 of 2 customers found this review helpful)

     
    5.0

    A Great Interface!

    By Concrete

    from Melbourne, Australia

    Verified Buyer

    Comments about Sound Devices USBPre 2 Microphone Interface for Computer Audio:

    A Great Interface!
    I use this device primarily as an interface with my Protools set up. This device is built like a tank, easy to use (plug in and play) Has its own asio drivers - to take advantage of the higher sample rates (In Windows ) and has flexible, useful configuration options through dip switches located at the back. Its preamps, converters and headphone output all sound fantastic as well. My Monitors have never sounded so good. As someone who mainly does audio editing and field recordings and just wanted something simple that gets the job done, the Usbpre 2 blew me away.

    Displaying reviews 1-4

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    Sound Devices USBPre 2 Microphone Interface for Computer Audio
    • Sound Devices USBPre 2 - Microphone Interface for Computer Audio
    • USB Cable
    • Rubber Feet
    • One (1) Year Warranty

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    XLR to XLR Cables
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    Hosa XLR Male to XLR Female Professional Microphone Cable 25ft. (7.6m)
    Price: $77.00
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    Ship Time: 2-3 Business days
    What's in the box
    Sound Devices USBPre 2 Microphone Interface for Computer Audio
    • Sound Devices USBPre 2 - Microphone Interface for Computer Audio
    • USB Cable
    • Rubber Feet
    • One (1) Year Warranty
    Phone: (03) 9543 8885 Fax: (03) 9543 8865
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    Address: Unit 12, 25 Howleys Road, Notting Hill Vic 3168
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