Quote:
I want to improve the sound quality of both the midi track and the realtracks and presumably need an external box to plug in via USB.


That depends, many times the MIDI sound issue is best solved elsewhere (the synth being used).

What does this device hook up to, that you actually hear sound from?
That could also be part of the issue.

Realtracks should sound OK through this, unless the headphones/speakers you are using are lacking or mismatched.


Make your sound your own!
.. I do not work here, but the benefits are still awesome