I go back to the same installer who told me back in January that the equalizer is not needed in my car because of the advances of today's head units to put separates in the rear side of my truck. He looks at the Audiocontrol 3.1 in my dash and tells me that Audiocontrol is top of the line, the absolute best in the business and that the 3.1 is the best because of the crossover, line driver and equalizer. He said it is an excellent addition to my system and makes my system sound 100% better. Even the installer chimes in and talks about how great audiocontrol is and that all they make are crossovers, equalizers and line driver. He probably did not like the Kicker KQ 9 which I thought was a great equalizer. He sure changed his tune when he saw that 3.1 in my truck.
Thank you guys for your advice because I listened 100% to everyone's opinion and it paid off. This installer was too confused, even though he is right about the 3.1. Sometimes, I question the advice of people no matter how well meaning they are. BTW. The 3.1 has worked out in both of my vehicles and they will never ever ever be removed again.