AudioControl

AudioControl's THREE.1 equalizer reinvents the old-school in-dash EQ. This versatile jack-of-all-trades features 3-band equalization, a parametric bass equalizer, a 2-way crossover, and a built-in line driver that'll send a hot, clean signal to your amps. Mount the 1" tall THREE.1 equalizer in your vehicle's dash opening along with your receiver, or under the dash if space is an issue. For connections, you'll find a set of preamp inputs, along with front, rear, and subwoofer outputs, plus speaker-level inputs that'll hook up to almost any factory radio. You can adjust response at 125, 1250, and 12,500 Hz, then use the parametric EQ to find the bass "sweet spot" between 40 and 80 Hz. AudioControl makes setup easy. Bring up your input knob until the "Overload" LED starts to flicker, then adjust your output level to get the most out of your amplifiers. The 2-way crossover is set at 90 Hz, but you can change the crossover point with an optional AudioControl module or by modifying the existing module. The groun...