isoacoustics aperta subIsoAcoustics Aperta Sub Subwoofer isolation IsoAcoustics is expanding its award winning range with Aperta Sub, an advanced isolation system created specifically for subwoofers. The isolation system is designed for subwoofers weighing up to 36. 3 kg and improves the listening experience by minimizing the transfer of energy to the surrounding structures. Improved bass definition Aperta Sub has been developed with a focus on delivering a cleaner and more