The GTO7001 has been engineered to ensure optimum power delivery into numerous impedances with low distortion. It comes outfitted with a variable 12dB per octave electronic crossover allowing you to optimize subwoofer tuning based on location and accompanying loudspeaker components. It also includes JBL's Dynamic Bass Optimization Circuit which provides variable filtering with adjustable Q below 100Hz. This circuit allows tuning of any enclosure to any vehicle. Full range preamp outputs are provided facilitating multiple amplifier hookups without the need for high-loss Y-adapters or signal splitters.