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M-Audio Fast Track Pro 4x4 Mobile USB Audio/MIDI Interface with Preamps

by M-Audio
129 customer reviews
| 7 answered questions

Available from these sellers.
  • Interface Type: USB, 2 x 1/4-Inch TRS phone (balanced), 4 x RCA phono (unbalanced) Analog Outputs, S/PDIF digital I/O with 2-channel PCM
  • System Requirements: Minimum Operating System - Apple Mac OS X 10.3.9, Apple Mac OS X 10.4.2, Microsoft Windows XP SP2
  • 24-bit / 96kHz audio interface with dual mic / instrument preamps
  • 20dB pads for gain staging
  • 1/4-Inch headphone output with level control and A/B source switch
4 used from $105.65

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Product Description

M-Audio Fast Track Pro

4 x 4 Mobile USB Audio/MIDI Interface with Pro Tools SE

M-Audio Fast Track ProThe M-Audio Fast Track Pro delivers all the mobile recording flexibility of the M‑Audio Fast Track, 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 even comes with Pro Tools SE music creation software so you can get started making music immediately.

* Class compliancy supports 16-bit/48kHz 2 x 4 operation on OS X 10.3.9 and higher. Driver installation required to access more I/O.


  • 24-bit/96kHz audio interface with dual mic/instrument preamps
  • Includes Pro Tools SE software—a streamlined version of the industry-standard music creation platform
  • Balanced/unbalanced analog I/O
  • S/PDIF coaxial; MIDI I/O
  • 1/4” headphone output with level control and A/B source switch
  • Mac and PC compatible; class compliant with Mac OS X 10.3.9 and higher*

Everything You Need to Record Guitar and Vocals on Your Computer

Professional Recording—Anywhere, Anytime

Professional RecordingFast 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 studio-quality condenser microphones. 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

MonitoringOne 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 the extremely 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.

Includes Pro Tools SE Music Creation Software

Pro Tools SE music recording and creation software delivers many of the same powerful features that studio professionals use to create Grammy award-winning albums, Emmy award-winning television shows, and Academy Award-winning films. This easy-to-use software lets you create pro-sounding music with up to 24 audio and virtual instrument tracks. It also includes over 100 virtual instruments to build out your mixes, plus EQ, reverb, and other effects to make your music sound professionally produced.

M-Audio Fast Track Pro—Feature Recap

  • Includes Pro Tools SE music creation software

  • 2 front-panel mic/line inputs with phantom power for condenser microphones

  • 2 balanced outputs (1/4” TRS)

  • 4 unbalanced outputs (RCA)

  • Insert jack (1/4" TRS) for outboard processors

  • S/PDIF digital I/O with w/ 2-channel PCM

  • S/PDIF out also supports pass-through of AC-3/DTS surround-encoded content

  • 1 x 1 MIDI I/O with activity LEDs

  • Headphone output (1/4” TRS) with level control

  • Headphone A/B source switch for DJ-style cueing
  • Input/playback mix control for hardware direct monitoring

  • Mono switch for input/playback direct monitoring

  • Master output level control

  • Near zero-latency hardware direct monitoring

  • Low-latency ASIO software monitoring

  • USB connection to computer

  • Powered via USB or optional AC power adapter

  • Kensington lock port

  • Mac and PC compatible; class compliant with Mac OS X 10.3.9 and higher*

* 16-bit/48kHz 2 x 4 operation is class-compliant. Driver installation required to access more I/O.


Digital Audio Interface Specifications48kHz sampling rate unless otherwise stated
Mic Inputs (A/D)
Input Impedance2.7k Ohms unbalanced,
5.4k Ohms balanced
Maximum Input Levelfrom +24dBu @ min gain, pad on to -40dBu @ max gain, no pad
Channel-to-Channel Crosstalk< -110dB
SNR-101dB, A-weighted
Dynamic Range101dB, A-weighted
THD+N0.005% (-86dB) @ -1dBFS, 1kHz
Frequency Response20Hz to 20kHz, +/- 0.1dB
Pre-amp Gain>40dB
Pad-20dB pad
Instrument Inputs (A/D)
Input Impedance>220k Ohm, unbalanced
Maximum Input LevelFrom +22dBV @ min gain,
pad on to -42dBV @ max gain no pad
SNR-100dB, A-weighted
Dynamic Range100dB, A-weighted
THD+N0.005% (-86dB) @ -1dBFS, 1kHz
Frequency Response20Hz to 20kHz,+/- 0.1dB @ 48kHz sample rate
Pre-amp Gain>40dB
Pad-20dB pad
Headphone Output (D/A)
Maximum Output-2.5dBV at THD < 0.05% into 32 ohms
Working Range32 to 600 ohms
Line Inputs (A/D)
Input Impedance20k Ohms balanced and unbalanced
Maximum Input Level+4.1dBu balanced,
+1.9dBV unbalanced
Channel-to-Channel Crosstalk< -110dB
SNR-101dB, A-weighted
Dynamic Range101dB, A-weighted
THD+N0.005% (-86dB) @ -1dBFS, 1kHz
Frequency Response20Hz to 20kHz,
+/- 0.1dB @ 48kHz sample rate
20Hz to 40kHz,
+/- 0.1dB @ 96kHz sample rate
Pad-20dB pad
  Input Inserts (analog)
Maximum Level Send+6dBV, unbalanced
Maximum Level Return+6dBV, unbalanced
THD+N0.00281% (-91dB) @ -1dB from max level, 1kHz
Frequency Response20Hz to 40kHz, +/- 0.1dB
  Line Outputs (D/A)
Output Impedance150 Ohms unbalanced,
300 Ohms balanced
Maximum Output Level+1.8dBV, unbalanced
+10.1dBu, balanced
Channel-to-Channel Crosstalk< -108dB
SNR-103dB, A-weighted
Dynamic Range103dB, A-weighted
THD+N0.005% (-86dB) @ -1dBFS, 1kHz
Frequency Response20Hz to 20kHz,+/- 0.3dB @ 48kHz sample rate
Headphone  Output  (D/A)
Maximum Output-2.5dBV at THD < 0.05% into 32 ohms
Working Range32 to 600 ohms
 I/OBit DepthSample Rate (kHz)
With Drivers4 x 41644.1/48
 2 x 42444.1/48
 2-in OR 2-out2488.2/96
Class compliant2x41644.1/48

We're Avid

From the most prestigious, award-winning productions, to music and movies made at home, Avid creates the technology that people use to make the most listening to, most watched, and most loved media in the world. The shows, commercials, and news programs you watch on TV. The entertaining video and film stories you see on the web and on the big screen. The personal audio and video treasures that people make at home to preserve their favorite moments in life. Our innovative digital audio and video solutions continue to revolutionize the art of creative storytelling, and have earned us hundreds of awards, including two Oscar statuettes, a Grammy, and 14 Emmys.

Minimum System Requirements

Windows / PC
  • Pentium 3 – 500 MHz (higher speed CPU may be necessary for laptops)
  • 256MB RAM
  • Directx 9.0c
  • Windows XP (SP2)* / Vista SP2 (32Bit, 64Bit) / Win7 (32Bit, 64Bit)
  • Windows 2000, 98, 98SE, ME and NT not supported
  • USB Port
  • Macintosh G3*** 600 / G4*** 667MHz (higher speed may be necessary for laptops)
  • 256MB RAM
  • OS X 10.3.9 / 10.4.2 / 10.5.1
  • Earlier versions of Mac operating systems are not supported
  • USB port
  • Dolby AC-3 and DTS pass-through with Apple DVD player

* Home and Professional Edition only. Windows Media Center Edition is not supported.
** Avid suggests that you also check the minimum system requirements for your software, as they may be greater than the above.
*** G3/G4 accelerator cards not supported.


  • WDM
  • Core Audio

What’s in the Package?

  • Fast Track Pro
  • 6’ USB cable
  • M-Audio USB Family CD
  • Pro Tools SE installation disk
  • Printed QuickStart guide
  • Electronic manual (PDF)

Product Details

  • Product Dimensions: 10.5 x 8.5 x 3 inches ; 2.1 pounds
  • Shipping Weight: 2.1 pounds
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000BD31ZW
  • Item model number: 9900-51076-00
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (129 customer reviews)
  • Amazon Best Sellers Rank: #42,380 in Musical Instruments (See Top 100 in Musical Instruments)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at October 2, 2001

Customer Reviews

Most Helpful Customer Reviews

75 of 84 people found the following review helpful By M. C. Heck on December 19, 2006
This thing CAN sound AMAZING-- but it probably won't, unless you are very careful. Make sure you have the latest drivers. Don't even BOTHER with the MME ("wave") or WDM drivers; it's ASIO or nothing, because M-Audio's MME/WDM drivers are so bad, I was completely convinced this thing had both a noise gate and a lousy ADC, when it turned out to be driver issues.

The pre-amp doesn't have as much gain as you might hope, but if you've got it cranked and you can barely get anything out of an SM-57, something is WRONG with your install. Try using ASIO. I had absolutely horrible results with Adobe Audition 1.0, but the 2.0 demo, using ASIO, a few reboots, and some tweaking, finally sounds perfect.

That said, the headphone output on this thing is awesome. Oh, rock on.

I hope I can get this thing working properly, because the only real competition is about three times the price.

NOTE: This device has PARTIAL support available for Linux/ALSA, with more on the way. That is independent support, mind you-- NOT M-Audio drivers.

I will revise/replace this review as I see better results; this is already better than my last one.
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48 of 54 people found the following review helpful By Antonio Jutronic on October 18, 2010
1.- This is primarily an USB External Soundcard, so don't ask more than a simple soundcard can deliver for you. If you want a multitrack recorder, or a high-end amplifier, or a 256 mixing console, then buy them, but not this one.

2.- The installation is the simplest. Don't use the CD. C'mon! This machine has been in the market since (I think) 2005, so don't expect 2010 drivers in the box. Forget about the CD and go directly to the M-Audio website and download the drivers that you need.

Don't forget to uninstall all previous drivers associated with older soundcards and physically extract your old soundcard from your computer.

And, beware: first of all install the M-Audio drivers, reboot your machine and just then, you can turn in your Fast Track Pro, never ever before (!).

3.- Maybe the interface it's a little enigmatic to understand - because the manual isn't that explicit - but not impossible to master. An advice... You`re surely gonna need some Y adapters because the only cable that comes in the box is the USB connector. In my case - only my case - I needed one Y adapter to connect my speakers (crappy ones) that have a 1/8 male connector (just enough for my old soundcard), so I needed a 1 stereo TRS 1/8 female to 2 mono RCA male Y adapter (lot of letters, uh?). Besides, I use an old second hand V-AMP with my guitar, so I needed a 1 stereo TRS female to 2 mono TRS male Y adapter, to connect my V-AMP in stereo and not mono. If you don't do this your instrument signal will be in mono and at one side.

4.- Some people complain that the sound is not that loud, but it depends of the kind of speakers and headphones you use. Bad ones, weak output - Good ones, strong output. With this dude, the bad stuff really sounds bad!
Read more ›
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31 of 36 people found the following review helpful By tangent VINE VOICE on January 21, 2008
Verified Purchase
This is a great little machine, yes there are a few caveats.. but on the whole I don't think you will find anything else in this price range with better features. I noticed quite a few negative reviews on this and other m-audio devices here on amazon, but it appears that most of them are either people who are inexperienced with digital audio equipment or people complaining about driver issues.

I have owned previous M-audio equipment and they do have a history of spotty drivers and slow fixes, however in this case I have had absolutely no problems with their drivers (running on Vista 32-bit). The sound quality is great, ASIO latency is low (~3ms), works on Linux too. I would give it 5 stars if it was 24/96 and usb 2.0
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8 of 8 people found the following review helpful By Brian Matchick on February 15, 2008
I don't write a lot of reviews, but this thing is such a pain and M-Audio are so obtuse that I had to write one. I knew that the Vista drivers were in beta when I bought it, but I figured that would not last long. Well, the last update was in June of 07 and they will not give a clue as to when the official driver will be out. The beta drivers suck and I have had nothing but glitches and problems. The hardware is all plastic and OK for the price, but without proper software it's almost useless. I just ordered a Firebox, hooked it up in 5 min and it works 10x better. If you're running XP this might not be an issue, but the truth is the $100 more for a firebox is worth every penny. M-audio and Mackie are both dropping the ball on software support lately and it's going to cost them in the long run. The forums are full of people telling them that, but not a lot of results yet. We all hate Vista, but that's life. Get your drivers up to date.
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11 of 12 people found the following review helpful By Steven McGowan on January 11, 2008
I've had this for over a week and have been recording many hours every night. No problems so far.

I am using Garageband on a MacBook Pro laptop and the addition of this device was seamless.

I am not new to home recording as I have a Dell Pc with an Edirol USB device and Sonar Producer edition but I moved and these are still at my old home.

One of the main reasons I bought this was for the Mac/Pc compatibility and the phantom power - a requirement for my Condenser mic.

It feels well constructed and the preamps work well - the pad switches being a nice addition.

The ability for recording two tracks at a time is great too as sometimes I like to lay down a "live" demo first and its great to have guitar on one track and vocals on another.

The Cons?
Well, this is me being picky but I dont like the white push switches, they just feel and little cheap and plastic.
Also the gains could have been better, you do need to have them almost all the way up.

Other than that, I cant fault it. But there are many more hours of recording ahead of me so if anything pops up, I'll be back!
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