Product Description
Two Channels to Go!
Borrowing the same award-winning microphone preamplifiers found on their 744T digital portable interface, the Sound Devices USBPre 2 provides one of the highest quality portable interfaces available for both Mac and Windows computers. The USBPre 2 is equipped with a pair of fully discrete, transistor-based XLR inputs and impressively lucid 24-bit converters that are capable of up to 192kHz sample rates. Additional inputs for line-level sources and consumer audio electronics, as well as S/PDIF optical Toslink digital devices are also available. A 23-segment, multicolor LED meter provides you with the essential feedback you need to keep an eye on your levels, and are an invaluable asset when using the USBPre 2 as a standalone preamp and A-to-D converter.
Sound Devices USBPre 2 Microphone Interface Features:
- Extended bandwidth, low-noise microphone preamplifiers with 48 V phantom, limiters, highpass filters, and 15dB pad
- Dynamic range greater than 114dB (in 24-bit operation)
- Flat 10Hz to 40kHz (@96kHz SR) audio bandwidth with very low distortion
- 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 mic-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 Stand-Alone mode the USBPre 2 operates as a microphone preamplifier and analog-to-digital converter
- Hardware loop-through for test & measurement to send computer audio directly back to an input
- High-strength extruded aluminum chassis
- Mac OS X 10.4+, Windows XP/Vista/7, and Linux, class-compliant audio device
- Additional features controlled by hardware DIP switches on the back panel
Additional Information
| Frequency Response (reference 1 kHz, at 96 kHz Sample Rate) | 10 Hz – 40 kHz, ± 0.5 dB (any input to PC recording) |
|---|---|
| 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) |
| 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 |
| Input Sensitivity (typical, for 0 dB FS) | Mic: -9 dBu min, -60 dBu max |
| Input Impedance (actual) | Mic: 4k 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 |
| Output Impedance | Headphone (Actual): 22 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 |
| 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) |
| Dimensions (unpackaged) | 4.3 cm x 18 cm x 10 cm (H x W x D) |
| Weight | 0.5 kg |
| Certifications | Meets FCC Part 15 Class B |