Line6 have always made innovative and useful products and I think this one is too. In many ways BackTrack isn’t too different to a number of micro audio recorders on the market. However, BackTrack adds and interesting twist. Both varieties of BackTrack auto detect a signal, and the BackTrack mic version has a built in mic. The ability to hit the mark button for easy recall and review of audio makes it very useful indeed, especially if you’ve recorded hours of material.
Here’s what the Line6 site says:
Inspiration is spontaneous, and BackTrack™ + Mic is your guitar’s instant replay button. Easy to use, BackTrack + Mic captures everything you play without ever hitting record.
Always on, BackTrack + Mic begins recording as soon as it detects a signal through the sensitive mic or the quiet 1/4-inch input. Use the 1/4-inch output or headphone output for immediate playback. Just set it and forget it for total inspiration control.
Pressing the “Mark” button designates what you just played as special and separates it for easy review. The Forward and Reverse buttons provide instant recall of marked and non-marked ideas.
BackTrack + Mic can capture up to 24 hours of audio. Saved as .WAV files to a rugged 2-GB flash memory, the audio is easily transferred via USB 2.0 to your computer or recording software for further recording, editing or mixing. The USB connection also recharges the internal battery to its full capacity of over 8 hours.
Sleek and low-profile, BackTrack + Mic fits in your gig bag as easily as it fits into your setup. At rehearsal, at the gig or at home, BackTrack + Mic is fully dedicated to capturing everything you play.