12" Filter Sort × Filters In Stock Availability In Stock Price $50-$100 (5) $100-$500 (8) $500 and above (8) Brand Harmony Audio (20) RMS Power 200-500 (4) 500-1000 (1) 1000-2000 (4) Peak Power 500-1000 (4) 1000-2000 (1) 2000-3000 (2) 3000-5000 (2) Size 12" (14) Voice Coils Dual 1 Ohm (1) Dual 2 Ohm (3) Dual 4 Ohm (1) Single 2 Ohm (1) Single 4 Ohm (3) Mounting Depth 3.5-4.49" (1) 5-6.99" (4) 7-9.99" (4) Sensitivity 83.1dB (2) 87.3dB (1) 87dB (1) 88.2dB (3) 88.6dB (2) × Sort Options SKU: A-ZSKU: Z-A Price: Low to HighPrice: High to Low Least PopularMost Popular Sort by: SKU Sale Price Popularity Harmony Audio HA-R124 Rhythm Series 12" - Package Sub $71.95 $99.99 Harmony Audio HA-F124 Car Stereo Flatline Series 12" Sub 800W ... $104.95 $142.99 Harmony Audio HA-A122 Car Stereo Alloy Series 12" Sub 1000W Du... $89.77 $142.99 Harmony Audio HA-C122 Car Stereo Competition Carbon 12" Sub 22... $169.95 $695.00 Harmony Audio HA-C124 Car Stereo Competition Carbon 12" Sub 22... $169.95 $695.00 Harmony Audio HA-ML122 Monolith 12" Competition Sub 3000W Dual... $339.95 $399.99 Harmony Audio HA-ML121 Monolith 12" Competition Sub 3000W Dual... $339.95 $399.99 Harmony Audio HA-R124 Car Stereo Rhythm Series 12" Sub 600W Si... $69.95 $99.99 2x Harmony Audio HA-C124 Car Competition 12" Sub 2200W Dual 4 ... $334.95 $442.99 2x Harmony Audio HA-C122 Car Competition 12" Sub 2200W Dual 2 ... $334.95 $442.99 Harmony Audio HA-R124 Car Stereo 12" 600W 4 Ohm SVC Subwoofer $69.95 $90.99 Harmony Audio HA-R122 Rhythm Series 12" - Package Sub $71.95 $245.00 2x Harmony HA-ML121 Monolith 12" Competition SPL Sub 3000W Dua... $659.95 $842.99 2x Harmony HA-ML122 Monolith 12" Competition SPL Sub 3000W Dua... $659.95 $842.99 4x Harmony Audio HA-C124 Car Competition 12" Sub 2200W Dual 4 ... $649.95 $857.99 4x Harmony Audio HA-C122 Car Competition 12" Sub 2200W Dual 2 ... $649.95 $857.99 Harmony HA-ML1X12D2 12" Dual 2-OHM Subwoofer Vented Enclosure ... $399.95 $558.95 4x Harmony HA-ML122 Monolith 12" Competition SPL Sub 3000W Dua... $1,294.95 $1,642.99 4x Harmony HA-ML121 Monolith 12" Competition SPL Sub 3000W Dua... $1,294.95 $1,642.99 8x Harmony Audio HA-C122 Car Competition 12" Sub 2200W Dual 2 ... $1,299.95 $1,714.99 8x Harmony Audio HA-C124 Car Competition 12" Sub 2200W Dual 4 ... $1,299.95 $1,714.99