From the SSL webpage:
“Every now and again a piece of audio equipment comes along that defines the sound of an era. Back in 1979 Solid State Logic gave birth to a legendary recording console. The SSL SL 4000E Master Studio System forever changed how records would be recorded and mixed, heralding a new age in popular music. In less than three years, every major studio worldwide featured at a least one room with an SSL “E” Series console.
The SSL Listen Mic Compressor was the secret weapon in many producers sonic arsenal of recording techniques. Originally designed to prevent overloading the return feed from a studio communications mic, its fixed attack and release curves were eminently suitable for use on ambient drums mics. Of course, we’d like to take all the credit for this great sound, but as usual, it was the creativity of SSL users that led to the idea.
Now you can experience the Listen Mic Compressor within the comfort of your own workstation software and see what sounds it’ll lead you to create. If you discover something really great – like a radical new distorted oboe sound then be sure to let us know.”
To use this plugin in Pro Tools, you need to purchase the VST-RTAS adapter from FXPansion (highly recommended, and worth every single penny).