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