We have a lot of info concerning this digital amp here, but i think we must have a topic only about this incredible little amp, so... :

http://www.tnt-audio.com/ampli/t-amp_e.html

http://www.tnt-audio.com/clinica/t-amp_tweaks_e.html

http://www.michael.mardis.com/sonic/start.html

http://www.michael.mardis.com/sonic/super.htm

http://mywebpages.comcast.net/ampbox/page2.html

http://www.6moons.com/audioreviews/sonicimpact2/t2.html

http://www.auricles.com/t__amp_upgrade.htm

http://www.octopusamps.com/gallery/

http://talkgarden.tripod.com/si_5066_pg_6.htm

http://home.pacifier.com/~gpimm/sonic-impact.htm

Apple iAmp

Jeff replaced a few of the amp's components to tweak its sound, and prototyped everything in a cheapo Tupperware container. Once he was sure everything worked, he removed the electronics board from the drive and added a 12V power supply and managed to attach the tiny T-Amp board on the bottom of the metal enclosure.

The floppy disk latch was repurposed as the power switch and the front LED glows when the amp is powered up. An ALPS volume knob was added to the front panel, along with binding posts to connect speakers on the back panel. The final result is a brilliantly useful case mod.

http://www.instructables.com/id/Apple-Floppy-Amp/