JL Audio High Output Wedge 10" SubwooferHigh powered sub in a High Output enclosure The "H. O." in JL Audio's H. O. Wedge enclosed subwoofer systems stands for "High Output," and that's exactly what you'll hear and feel. High Output Wedges deliver efficient, accurate bass, with better sound quality than conventional ported and bandpass boxes. The woofer sits in recessed baffle, part of a separate chamber within the enclosure, and the front firing port output combines with woofer output for