AUDIO USB / MIDI INTERFACE Record two tracks at a time and monitor them with zero latency. Whether you have a PC or a Mac, your song ideas go down in real time, real easy. Its size means you can take it anywhere you take your laptop, yet it's packed with features that make buying it an audio no-brainer. MIDI input and output, high quality mic inputs, 96kHz/24-bit recording (better than CD quality)-all the stuff you'd want without the fluff you wouldn't (if you need a digital SPDIF I/O, have a look at the US-144). The US-122L: the answer to your recording needs. Caratteristiche Two XLR mic inputs with phantom power Two analogue line inputs (one switchable to high impedance for use with guitars, basses, etc.) One MIDI input, One MIDI output USB 2.0 equipped (also supports USB 1.1) Up to 96kHz/24-bit for high quality recordings Zero-latency hardware monitoring Headphone/level control Bus powered for use with any PC or Mac, including laptops MIDI IN and MIDI OUT 5-pin DIN connector (conform to MIDI specification) USB port down stream connector, format: USB 2.0 Host computer compatibility Operating system Windows XP, Vista, Mac OS 10.3.9 or later Communication USB 2.0 Audio/MIDI interface protocols Windows: ASIO, ASIO2, GSIF2, WDM Macintosh: CoreAudio, CoreMIDI (OS X) Bundled software Cubase LE (for Windows or Macintosh), Gigastudio 3 LE (Windows only) Power 5 V, maximum current 500 mA (from USB) Dimensions (H x W x D) 192 mm x 147 mm x 48 mm Weight 1 kg Inputs & Outputs Mic inputs (MIC IN L and R) XLR, balanced Input impedance 2.4 kOhm Nominal input level -58 dBu (TRIM=max) to -14 dBu (TRIM=min) Maximum input level +2 dBu (TRIM=min) Line inputs (LINE IN L and LINE/GUITAR IN R, MIC/LINE position) 6,3-mm jack, unbalanced Input impedance 10 kOhm Nominal input level -40 dBu (TRIM=max) to +4 dBu (TRIM=min) Maximum input level +20 dBu (TRIM=min) Guitar input (LINE/GUITAR IN R, GUITAR position) 6,3-mm jack, unbalanced Input impedance 1 MOhm Nominal input level -51 dBu (TRIM=max) to -7 dBu (TRIM=min) Maximum input level +9 dBu (TRIM=min) Line output (LINE OUT) RCA, unbalanced Output impedance 100 Ohm Nominal output level -10 dBV Maximum output level +6 dBV Phones output (PHONES) 6.3-mm stereo jack Maximum output power 14 mW + 14 mW (32 Ohm) Performance Audio A/D Conversion (AK5381) 24-bit/96 kHz, 27.6 samples delay D/A Conversion (AK4384) 24-bit/96 kHz, 19.3 samples delay Frequency response (LINE OUT, -10 dBV) 20 Hz - 20 kHz, ±1 dB (normal sampling rate up to 48 kHz) 20 Hz - 40 kHz, +1/-3 dB (high sampling rate up to 96 kHz) Signal-to-noise ratio, LINE IN to LINE OUT Through ADC and DAC >96 dB(A) (INPUT = min, input impedance 40 Ohm) Through direct monitor >100 dB(A) (INPUT = min, input impedance 40 Ohm) Total harmonic distortion (THD+N, 22 Hz to 22 kHz), LINE IN to LINE OUT Through ADC and DAC < 0.006% (1 kHz sine, +20 dBu input, INPUT = min.) Through direct monitor < 0,004% (1 kHz sine, +20 dBu input, INPUT = min.)