I never said it wouldn't sound good, I just said most sound cards have a lower voltage so the gains will have to be set higher accordingly. Sure you could buy an expensive card, or solder on different op-amps, or buy an external equalizer, but most people don't.
A really good sound card with high voltage preouts will cost you, and not everybody knows how to replace op-amps or is willing to try it. A processor like the h701 is another way of upping the voltage, but they cost a LOT of money, and the computer is capable of doing all the equalization, time delay, and crossover work, so buying an external unit just to up the voltage is rather redundant and a big waste of money and nice equipment.
If it's that big of a deal and money is tight, just buy a line driver, although you shouldn't need one.
Viziers, those components look pretty good. The only thing I worry about is the monitor, it says it's a 7'' touchscreen, but there is a large button panel on the side. So either the screen is much smaller than most 7'' monitors, or the unit its self is about an inch wider than most which could make installation more difficult.
Oh and I always thought it would be fun to have a fingerprint scanner start the car...you should do it since you have one.
