IsoAcoustics APERTA SUB XL Isolator For Large SubwoofersIsoAcoustics introduces the Aperta Sub XL subwoofer isolator at HIGH END 2023 in Munich, Germany. The new model expands on the Aperta Sub and makes the patented IsoAcoustics technology available for subwoofers of up to 160 lbs (72. 5 kg). Managing the challenging low frequency spectrum, the Aperta Sub XL enables large subwoofers to perform at their best. The subtle design does not get in the way of the feet on the subwoofer and remains visually