Sound Devices USBPre 2 - Microphone Interface for Computer Audio

Sound Devices USBPre 2 - Microphone Interface for Computer Audio

Sound Devices USBPre 2 - Microphone Interface for Computer Audio

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Product Highlights

  • 2 Channels
  • USB Interface
  • Portable and Roadworthy
  • Phantom Power
  • Limiters and High-Pass Filters
  • 15 dB Pad
  • Metering
  • Mac OS X
  • Windows XP / Vista 7
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Sound Devices USBPre 2 overview

  • 1Description

The USBPre 2 from Sound Devices is a high-resolution, portable interface that connects professional microphones, line-level sources, consumer audio electronics and S/PDIF digital sources with Mac OS X and Windows computers via USB. The unit includes two discrete-transistor microphone preamps with 24-bit converters and sampling rates up to 192 kHz. The preamp topology is shared with the company's premier 744T digital audio recorder and includes peak limiters, high-pass filters, and a 15 dB pad for overload protection.

The interface is a class-compliant audio device, allowing for simple plug-and-play connection to computers running Mac OS X, Windows and Linux operating systems. There are no drivers to install and no software-only features, with all additional controls and settings 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. All analog-to-digital and digital-to-analog conversion is performed by the USBPre 2.

When used in stand-alone mode, the unit operates as a high-quality, portable microphone preamplifier and analog-to-digital converter. Incoming digital signals are converted to analog and available at the headphone, XLR and RCA outputs. This mode is a great option when an additional microphone preamplifer, A-D converter, or D-A converter is required.

The unit includes numerous output connection types, including balanced microphone 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. The USBPre 2 includes an accurate 23-segment, multi-color LED meter for precise level indication. The meter is switchable between input and output signal metering. The meter indicates both VU and peak (PPM) ballistics.

The interface is designed to stand up to the most demanding environments. Its extruded aluminum chassis and panels, machined knobs, metal connectors, and laser-etched nomenclature are designed to hold up to years of abuse.

Extended bandwidth, low-noise microphone preamplifiers with 48V phantom power, limiters, high-pass filters, and 15 dB pad
Dynamic range greater than 114 dB (in 24-bit operation)
Flat 10 Hz to 40 kHz (@ 96 kHz SR) audio bandwidth with very low distortion characteristics
Each input individually selectable between microphone, line and aux level signals (both channels selected simultaneously for S/PDIF connections)
Precision, 23-segment, multicolor LED peak/VU meter, selectable between input and output sources
High-output headphone amplifier can drive a wide range of headphones
Balanced outputs on XLR connectors with dedicated level control can be used to drive line or microphone level inputs
Mix control enables zero-delay monitoring of source audio, computer audio, or a mix of both source and computer audio for multitrack recording or computer telephony
Phono (RCA) jacks connect Aux Output to external loudspeakers or preamplifiers
Bus powering via USB for convenient, single-cable connection to the computer
In standalone mode the USBPre 2 operates as a microphone preamplifier and analog-to-digital converter
Hardware loop-through for test and measurement to send computer audio directly back to an input
High-strength extruded aluminum chassis
Mac OS X 10.4+, Windows XP, Vista, Windows 7, and Linux class-compliant audio device
Additional features controlled by hardware DIP switches on the back panel - no software only features and no control panel
UPC: 859108005505
In the Box
Sound Devices USBPre 2 - Microphone Interface for Computer Audio
  • USB Cable
  • Rubber Feet
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Sound Devices USBPre 2 specs

    Converters 24-bit, crystal based low jitter Masterclock
    Sample Rates Recording: 8, 16, or 24-bit @ 8, 16, 32, 44.1, 48, 96, 192kHz
    Playback: 24-bit @ 8, 16, 32, 44.1, 48, 96, 192kHz
    Analog Input 2 x XLR Microphone
    2 x 1/4" TRS phone Line
    2 x RCA phono AUX
    Analog Output 2 x XLR Microphone/Line
    2 x RCA phono AUX
    Digital Input 1 x TOSLink optical S/PDIF
    1 x RCA coaxial S/PDIF
    Digital Output 1 x TOSLink optical S/PDIF
    1 x RCA coaxial S/PDIF
    MIDI In/Out No
    Sync In/Out S/PDIF
    Maximum Input Level Mic: -10dBu
    Mic (15dB pad): +4dBu
    Line: +28dBu (19.45V rms)
    Aux: +9dBu (2.18V rms)
    Input Impedance Mic: 4kΩ, active-balanced
    Line: 60kΩ, active-balanced
    Aux: 80kΩ, active-balanced
    Maximum Output Level Balanced XLR: +18dBu with 100kΩ load
    Aux: +8dBu (2.0V rms) with 100kΩ load
    Headphones: +11dBu (2.75V rms) with 600Ω load
    Output Impedance Balanced XLR (line level): 500Ω
    Balanced XLR (mic level): 5Ω
    Aux: 660Ω
    Headphone Output 1 x 1/4" TRS phone
    1 x 3.5mm stereo mini
    Phantom Power 48V through 6.8kΩ resistors
    Each microphone input will supply 10mA
    Metering 2 x 23 segments, 44dB total range, peak ballistics - 0dB on meter = 0dBFS (0dB referenced to full scale digital)
    THD + N 0.05% maximum (any input to PC recording, gain control at minimum, input driven to -6dBFS)
    0.009% maximum (AUX output, 0dBV output, 100Ω load)
    0.05% maximum (headphones output, 2V rms output, 600Ω load)
    Noise EIN: -127dBu minimum (22Hz to 22kHz bandwidth, 150Ω source, gain control fully clockwise, 15dB pad out)
    Dynamic Range A/D: 114dB typical (22Hz to 22kHz) A-weighted
    D/A: 112dB typical (22Hz to 22kHz) A-weighted
    Frequency Response 10Hz to 40kHz, +/-0.5dB (any input to PC recording)
    10Hz to 40kHz, +/-0.5dB (PC source to AUX output)
    Power Requirements USB bus powered, soft-start meets USB hot-plugging power requirements (5V, 100mA max current drawn during enumeration)
    5V (+/- 10%, 500mA max current from USB port (USBPre 2 will not function if connected through a passive USB connection or hub)
    System Requirements Windows XP (SP3), Vista, or Windows 7 (32- and 64-bit)
    Mac OS X 10.4 or greater
    Linux Kernel 2.6.0 or greater (requires standard ALSA snd-usb-audio module)
    Dimensions (WxDxH) 7.25 x x 4.25 x 1.7" (180 x 100 x 43mm)
    Weight 1.13 lbs (0.5kg)
    Specialties 24- or 16-bit S/PDIF digital input
    Input Limiter Threshold: -4dBFS
    Low Cut Filter: 80Hz, -3.0dB, 12dB per octave
    Packaging Info
    Package Weight 2.25 lb
    Box Dimensions (LxWxH) 10.7 x 7.3 x 5.0"

    Sound Devices USBPre 2 reviews

    USBPre 2 - Microphone Interface for Computer Audio is rated 4.9 out of 5 by 35.
    Rated 5 out of 5 by from love it This thing is great. It's extremely portable, sounds great, has no latency issues over USB (2011 macbook air). I was using MOTU before, and the sound of this unit is so much more revealing and rich than the mk2 i had before. That coupled with the build quality you expect from sound devices makes me say this thing is a STEAL at $. Strictly in terms of build quality, duet 2, rme stuff are like toys next to this thing (though they of course offer more channels). I'm using mac os 10.7 and it's been mostly smooth, although I do occasionally have wake-from-sleep issues, which necessitate unplugging and re-plugging the unit. Other than that, I'd give 10 stars if I could, I'm extremely happy with my purchase.
    Date published: 2012-04-19
    Rated 4 out of 5 by from Sounds Great/Less Filling I bought this to replace my MOTU MK3 for use with SMAART. I've ended up using it for other applications such as recording into my computer or playing back audio from it. It's compact and solid as a rock. Sounds amazing and is a breeze to setup. Just plug and play. The MOTU is great but was too big to carry for one offs and fly dates. It's a bit pricey but it made for a nice tax write off. I wish you had the option to power it via battery and or external power supply so I could throw it on a pair of podium mics if the mood struck me, and giving it another use. I love this box and you will too!
    Date published: 2015-03-22
    Rated 4 out of 5 by from USBPre 2 is a great interface I use this as the front end of my Pro Tools 9 system which i run off a MacBook Pro. It seamlessly integrates into the software. It also works with any other app that you run, including the system. When using Pro Tools, all system sounds still come from the computer, and not thru the box, which is great. The box is extremely sturdy, knobs feel great, and the metering is wonderful. The mic pre's are super clean. All these things i expect from Sound Devices. The unit receives power thru the USB Port, so no added power supplies. Minuses: i wish it had an AES/EBU digital input / output. It's got SPDIF and Optical, but i use AES more.
    Date published: 2012-01-22
    Rated 4 out of 5 by from High-end Sound, Windows 7 Driver Problem Someone either flagged my previous review, or B&H culled it out. How can we trust reviews if a range of opinions are not allowed? In any case, sound quality if superb, but be aware that there is a known bug with the ASIO driver and Windows 7. It's not possible to select 24-bit recording in the driver control panel, even though your DAW supposedly will record at full 24-bit depth. Sound Devices tech support has confirmed this glitch and is working with the driver developer to fix it.
    Date published: 2014-08-15
    Rated 4 out of 5 by from excellent piece of gear.. ..every input and output one could ever need on the road or at home in the studio -- very well built, and with first-rate sound quality; I've had this unit for a couple weeks, and I love it; the learning curve on the back 'pins' is quick for any experienced engineer, and they are easy to set once you get used to them; converters are great, and headroom is outstanding; the size of a direct box with so many features! I'm glad I came across this unit in my research for a new interface, and I know I made the right choice -- highly recommended
    Date published: 2012-06-22
    Rated 5 out of 5 by from Top notch portable preamp interface My USB Pre 2 came and, like Sound Devices recorders, it is another finely engineered piece. I run it on a USB battery in standalone mode with small digital recorders, a MicroTrack II, a Tascam HD-P2 and a DR-680. It's a perfect complement to SD744T recorders which have two preamps but 4 channels. This little box will make top notch digital recordings with portable digital recorders or a laptop computer, and what you get for the price is incredible. The mic preamps, converters, headphone amp and analog outputs all sound stellar. P.S. The little mixer knob lets you adjust precisely how much recorded vs playback sound you want which is ideal for layered multitrack recordings. Nothing in this price can touch it. I'm excited that truly pro-level preamps now fit inside a portable computer interface, and smaller budgets too.
    Date published: 2010-11-30
    Rated 5 out of 5 by from Amazing! The most affordable SD product and the most useful! Sounds incredible as all SD products do, use it as a DAW with a laptop on the go, it is light and sturdy. Fits perfectly in the Petrol PS607 bag. The SPDIF connects seamlessly to the Tascam digital in and with the Tekkeon USB power units I get hours and hours of Phantom powered recording. If you do not like to fuss with your settings too much this is for you, if you require more flexibility and more extensive limiters and filters then buy a 702 :)
    Date published: 2012-03-11
    Rated 5 out of 5 by from Great Solid Interface This is a great mixing interface to use between a mic and computer; probably the best out there. I also use a Sound Devices 442 mixer in my work and I can attest to their build quality. I gave them a 5 out of 5 stars but, I do have a couple of issues with the Pre2: One: The XLR inputs are mic-in only; not switchable between mic/line like their other mixers. Two: there are no limiters on line inputs, again, like there are in the other Sound Devices mixers. That said, this very relible and sturdy interface is worth every penny.
    Date published: 2012-07-31
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