Solid state electronics, but not ideal
Crutchfield Customer Review (What's this?)
I really want to like the Audio Control Three.2, and in some ways I do like it. But overall it feels like it was designed around its electronics instead of around the user. It serves its purpose in my car audio build, but if another company made a unit that sounded as good, I'd try someone else over Audio Control. They were the leaders in the 90s, but now their products just feel dated and almost obsolete. With high-end head units that have their own, good built-in crossovers and lots of EQ channels to adjust, the usefulness of the Audio Control Three.2 is dwindling. I really don't need this unit, as the real reason I got it is to have knob control on-the-fly, instead of having to hunt for and change the EQ of a head unit. In comparison, that's one turn of a Audio Controls' knob vs. several presses and turns on a head-unit to do the same thing. So it was merely a convenience factor for me. And even then it's not as good as it could be. In short, although I'll be keeping it and it works fine, I'm a little disappointed in Audio Control. COMPLAINTS: The chassis is far too heavy (the electronics don't way much). Their advice is outdated, even though I followed most of it like separate power and ground. The blue power LED's leads were far too close as I had to separate them when opening up the unit. There was also a small piece of foam stuck near one of the knobs (middle EQ knob), so the knob squeaked when turned. Fortunately I was able to remove that. See my Cons for more...
Pros: 24dB crossover network, small size fits nicely below head unit in a custom install. Does a great job and sounds great. Gives you nice sweep and gain control over bass. Made in the USA, though Audio Control brags about this a little too much. Great manual that goes above and beyond the call of duty in explaining not only every function, but why you'd want to use that function. Some of the advice is outdated, though.
Cons: Knobs have no grips. Blue power LED is WAY too bright, and worse looks bad when you set the illumination mode to red. Too many settings involve opening the unit and changing jumpers. I appreciate the control, but external dip-switches are better. RCA voltage gains requires testing/setting them before installation if you're putting it in a dash. Gains worthless for new, high-end head units with full 4v of RCA signals at 3/4 to 5/6 vol. Locked into stock 90dB crossover chip, though replaceable.