I got the minidsp today, I took great care to watch the video of you and Hugo discussing how to use the dsp to balance my subwoofer setup. I also reviewed the instructions carefully on how to use the product beforehand. It came with the setting for gain control at 2.0 volts rms. I opened it up and changed the setting to .9vrms. I was able to change the sound of two of the subs by boosting the lower bass and cutting the upper bass through parametric eq. I also set all 6 subs at a Low pass filter of 80hz, and a high pass of 18hz. The Minidsp is amazing, powerful, and well worth the cost.