Vented bass powered subwoofer enclosures 15 premium heavy-duty woofer Power amp has forced air cooling for maximum reliability Internal line level low-pass/high-pass crossover network Fully adjustable Kosmos? C for increased bass impact Polarity switch for polarity reversal of subwoofer Full-coverage heavy-duty perforated steel grill Steel handles XLR/1/4" combo jack input Compact dimensions for a 15" woofer based sub Two high-pass XLR outputs, and one full-range thru XLR output Threaded pole mount with speaker pole included 800 watts peak available power Ground lift switch for lifting cable shield from ground Weight Packed: 41.27 kg Width Packed: 69.215 cm Height Packed: 71.12 cm Depth Packed: 54.61 cm