Filter Filters $500 and above Remove All Filters Condition New (22) Refurbished (3) Used (4) Brand Harmony Audio (14) Peavey (7) Alpine (1) Ddrum (1) Kicker (1) Size 12" (3) 10" (2) 15" (2) 18" (2) Voice Coils 2 Ohm (1) Fixture Type Triple (1) Amp Type Bass Amplifier (1) PA System (1) 4x Harmony HA-ML121 Monolith 12" Competition SPL Sub 3000W Dual 1 Ohm Subwoofer $1174.99 4x Harmony HA-ML151 Monolith 15" Competition SPL Sub 3200W Dual 1 Ohm Subwoofer $1300.99 4x Harmony Audio HA-C104 Car Competition 10" Sub 2000W Dual 4 Ohm Subwoofer New $580.99 4x Harmony Audio HA-C102 Car Competition 10" Sub 2000W Dual 2 Ohm Subwoofer New $554.99 12