First of all the OPTISOUNDAUTO10A-V4 has the best sound with almost limitless adjustment, high output and durable components the output can be optimised for incredible performance. The subwoofer is part of the underseat subwoofer range and they have premium design featuring an MDF housing that encases a full-spec BLACKAIR10 shallow subwoofer. Its alloy gasket and hexagonal grille add to the aesthetic appeal. Also vibe sets a new standard with its user friendly DSP, complete with smartphone interface. This allows users to fine tune the bass sound according to their personal preferences, elevating their listening experience.