FEATURES- Fast Track Pro
       4 x 4 Mobile USB Audio/MIDI Interface with Preamps.
       The Fast Track Pro delivers all the mobile recording flexibility of 
        the Fast Track USB, plus even more professional features. You get 2 
        front-panel mic/line inputs complete with phantom power for 
        condenser microphones, inserts for outboard effects balanced and 
        unbalanced analog outputs, S/PDIF digital I/O, MIDI I/O, and more. 
       Fast Track Pro also features near-zero latency direct hardware 
        monitoring and low-latency ASIO software monitoring, plus an A/B 
        source switch and dual output pairs for DJ-style cueing. Fast Track 
        Pro is compatible with most popular PC and Mac music software. USB 
        connection and bus power along with class compliancy for Mac OS X
        make it a breeze to set up. 
* Professional Recording--Anywhere, Anytime
   Fast Track Pro is designed to let you record with professional results 
   whenever and wherever you want. A single USB connection gives you access 
   to all the I/O you need for microphones and instruments like guitars, as 
   well as MIDI- and S/PDIF-equipped digital audio gear. The microphone 
   inputs are even phantom powered to accommodate the studio-quality 
   condenser microphones like the M-Audio Luna and Solaris. Our time-tested 
   driver software gives you total routing control over the 4 x 4 I/O--
   including setting up an effects loop with external devices.
* Monitoring Galore
   One of the hallmarks of a great audio interface is its monitoring 
   flexibility--and Fast Track Pro delivers. Fast Track Pro features a 
   powerful headphone amp with volume control. Hardware direct monitoring 
   eliminates the latency or delay inherent in even the best internal 
   circuitry while listening to your input and existing tracks. You can 
   also listen to your input complete with effects while recording by using 
   extremely the low-latency ASIO monitoring we ve perfected over the 
   years. Two pairs of analog outputs let you connect to a DJ mixer and use 
   the front-panel A/B source switch to audition cues.
* GT Player Express 
   Fast Track Pro ships with GT Player Express software, delivering a 
   variety of effects and virtual stomp boxes that eliminate the need for a 
   guitar amp for basic recording and practice. GT Player Express also 
   plays standard audio files like AAC, MP3 and WAV, allowing you to learn 
   and jam along with your favorite music at variable speeds. With Fast 
   Track Pro and GT Player Express, your computer can be your entire guitar 
   rig.
* Ableton Live Lite 5 
   This special edition of the multi-award winning Ableton Live 5 software 
   lets you experience what the critics have been raving about. Live 5's 
   revolutionary loop-based paradigm makes production as simple as dragging 
   and dropping audio clips in real time. You can also record linear 
   tracks, add effects, perform live remixes and much more. 
  
  -- SPECIFICATIONs --------------------------------
SAMPLE RATES - 48kHz sampling rate unless otherwise stated
MIC. INPUT   - (A/D)
               Input Impedance    : 2.7k Ohms unbalanced
                                    5.4k Ohms balanced 
               Input Level        : From +24dBu @ min gain, pad on to -
                                      - 40dBu @ max gain, no pad.
               Channel-to-Channel
                         Crosstalk: < -110dB 
               SNR                : -101dB, A-weighted 
               Dynamic Range      : 101dB, A-weighted 
               THD+N              : 0.005% (-86dB) @ -1dBFS, 1kHz 
               Frequency Response : 20Hz to 20kHz, +/- 0.1dB 
               Pre-amp Gain       : >40dB 
               Pad                : -20dB pad 
INSTRUMENT INPUTS- (A/D) 
               Input Impedance    : >220k Ohm, unbalanced 
               Input Level        : From +22dBV @ min gain, pad on to -
                                      42dBV @ max gain no pad.
               SNR                : -100dB, A-weighted 
               Dynamic Range      : 100dB, A-weighted 
               THD+N              : 0.005% (-86dB) @ -1dBFS, 1kHz 
               Frequency Response : 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample 
                                      rate.
               Pre-amp Gain       : >40dB 
               Pad                : -20dB pad 
LINE OUTPUTS - (A/D)
               Input Impedance    : 20k Ohms balanced and unbalanced 
               Input Level        : +4.1dBu balanced, +1.9dBV unbalanced 
               Channel-to-Channel
                         Crosstalk: < -110dB 
               SNR                : -101dB, A-weighted 
               Dynamic Range      : 101dB, A-weighted 
               THD+N              : 0.005% (-86dB) @ -1dBFS, 1kHz 
               Frequency Response : 20Hz to 20kHz, +/- 0.1dB @ 48kHz sample 
                                      rate.
                                    20Hz to 40kHz, +/- 0.1dB @ 96kHz sample 
                                      rate.
               Pad                : -20dB pad 
INPUT INSERTS- (analog)
               Max. Level Send    : +6dBV, unbalanced 
               Max. Level Return  : +6dBV, unbalanced 
               THD+N              : 0.00281% (-91dB) @ -1dB from max level, 
                                      1kHz.
               Frequency Response : 20Hz to 40kHz, +/- 0.1dB 
LINE OUTPUTS - (D/A)
               Output Impedance   : 150 Ohms unbalanced, 300 Ohms balanced 
               Max. Output Level  : +1.8dBV, unbalanced
                                    +10.1dBu, balanced 
               Channel-to-Channel
                         Crosstalk: < -108dB 
               SNR                : -103dB, A-weighted 
               Dynamic Range      : 103dB, A-weighted 
               THD+N              : 0.005% (-86dB) @ -1dBFS, 1kHz 
               Frequency Response : 20Hz to 20kHz, +/- 0.3dB @ 48kHz sample 
                                      rate.
HEADPHONE OUTPUT- (D/A)
               Max Output         : -2.5dBV at THD < 0.05% into 32 ohms
               Working Range      : 32 to 600 ohms 
WITH DRIVERS - I/O              Bit-Depth         Sample Rate (kHz)
               4 x 4              16                 44.1/48
               2 x 4              24                 44.1/48
               2-in or 2-out      24                 88.2/96
COMPATIBILITY- WDM, ASIO 2, Core Audio
REQUIREMENTS - PC : Pentium 3 500 MHz (higher speed CPU may be necessary 
                      for laptops).
                    256MB RAM 
                    DirectX 9.0c or higher 
                    Windows XP (SP2) 
                      (Windows 2000, 98, 98SE, ME & NT not supported) 
                    USB port 
               MAC: Macintosh G3 600/G4 667MHz (higher speed may be 
                      necessary for laptops).
                    256MB RAM 
                    OS X 10.3.9/10.4.2 (earlier versions of Mac operating 
                      systems are not supported).
                    USB port 
                    Dolby AC-3 and DTS pass-through with Apple DVD player 
                    NOTE: M-Audio suggests that you also check the minimum 
                            system requirements for your software, as they 
                            may greater than the above. 
                          G3/G4 accelerator cards not supported; native 
                            FireWire ports required. 

4x4 mobile USB Audio/MIDI interface with Preamps.