Proprietary, shallow-profile woofer The 8" (200mm) woofer in the BassPro SL2 is designed specifically to provide low distortion and great bass performance in an ABS enclosure with a remarkably compact footprint. Efficient Class D amplifier The amp that powers the BassPro SL2 produces minimal heat, and it doesn’t require a lot of current from the car’s electrical system. Intelligent electronic design The BassPro SL2 employs high-pass filters and limiters that deliver exceptional at-the-limits performance. Crossover control A manual crossover control (50Hz – 120Hz) lets you adjust how much upper bass and mid-bass the BassPro SL2 produces. Fine-tune the crossover to achieve a smooth transition from the BassPro SL2 to the rest of the system’s speakers. Flexible EQ adjustments Level control adjusts the BassPro SL2’s volume to the other speakers in your system, while Bass Boost control lets you minimize peaks or dips in bass frequencies in your car’s acoustic environment. Line- and high-level inputs For added installation flexibility, the BassPro SL2 features both line- and high-level inputs. If you use the high-level inputs to connect the BassPro SL2 to the head unit, an input load switch lets you switch from “Low” to “High” to achieve optimum results. Wired, remote level control capability The BassPro SL2 is compatible with the JBL GTO-RBC included, which enables you to control the bass level remotely.