Filter Filters 15" Harmony Audio Remove All Filters Price $100-$500 (3) $500 and above (2) Condition New (5) Voice Coils Dual (1) Sensitivity 89.4 dB (1) Harmony Audio HA-RS15 15" Vented 900W Loaded Enclosure with Harmony Audio... $190.99 Harmony Audio HA-A152 Car Stereo Alloy Series 15" Sub 1500W Dual 2 Ohm... $209.99 8x Harmony Audio HA-C152 Car Competition 15" Sub 2800W Dual 2 Ohm Subwoofer New $1430.99 4x Harmony HA-ML151 Monolith 15" Competition SPL Sub 3200W Dual 1 Ohm Subwoofer $1300.99