Search for the DIY versions and experiment for yourself. Very little cost involved.
evs ground conrol tweak
I am interested in trying this tweak out. I would like to here from other members who have tried these as to what improvements they experienced. I have heard both good and bad about them, including someone saying that after a while with them in there system that they seemed to have a negitive effect on the sound of there system, any opinions are welcome, thanks, Kent