I have tested the ramp and it does in fact work. Placing it on a stand directly behind mix positions improved bass response, removed edge from upper mids, and elongates highs so that reverb tails and quiet slaps become more apparent. It works as advertised and the change in sound from it being in place to it being removed is incredible. In my office, the biggest improvement was in the bass response. With it in place, my Tannoy Elipse 8 Actives really put out the 40hz they are rated for but when removed that enhancement was gone. There was also a lot more sizzle in the highs and the stereo field felt wider. In a lab the biggest improvement was in the midrange. There is always a murky, muddy quality to everything that you hear in there and ramp really opened it up.
-Jonathan Sage, Audio Engineer, Boston College