First impressions: This software is very, very good. APO with the interface is a godsend, not just for bassheads, but for anyone wanting to tweak and tune. I might use this for IEM reviews and comparisons, thanks for the heads up.
I tried a few basic bassy EQ curves with a few different headphones, and the results were good - the interface will do its best to avoid clipping if you get a little too excited, which is a good sign.
Then tried something a little more extreme, and tried a ridiculous curve with the LCD 2.2 (the red line is the one to look at):
I drove them with my Mini-i PRO DSD DAC/amp:
Absolutely ridiculous. Vibrating the living crap out of my skull. I don't want to damage the drivers, so I won't leave them slamming on my head all night. The LCD completely vibrates when you drive them hard enough.
The interface can often click and pop when you're adjusting it on-the-fly, so be careful, and turn it down when making adjustments.
When using additive EQ, as expected, some pretty heavy compression going on.
TL;DR: Having this next to your ear, with absolutely stupid EQ curves, causes your entire head and face to rumble. Absolute gobs of bass, they refused to quit, and didn't distort.
I thought his eq post was one of the finer posts I have ever seen here. Being a basshead thread.. If we could "sticky" posts that eq one would be 1st in line imo.
@PocketSmiley ......good stuff bro!!! very very good stuff for everyone to enjoy. love that red ski jump slope..(without the jump)