Audison APBX 10 DS 10 800W Bass Dual 4OHM Car Subwoofer Reflex Enclosure 400RMS. The APBX 10 DS, a 10″ subwoofer loaded in a 12-litres sealed enclosure, is the line’s “flagship. It is dedicated to the highest performing Prima systems, using the AP1 D amplifier for the sub section. The speaker’s mechanical excursion of more than 18 mm provides for incredible authority, while the refined Thiele & Small parameters set-up provides the ideal balance for all music genres. Comp REFLEX SUB BOX. Size 250 mm (10”). 400 W Continuous Power. 800 W Peak Power. Impedance 4 O + 4 O. Sub box size mm in. 472 (18.58) x 334 (13.15) x 120 (4.72). Magnet High density flux ferrite. Cone Cotton-Fibre pressed paper. Weight of one component kg (lb) 8,63 (19.03).