TS-SW3001S2|S4 - 12" Shallow Mount Subwoofer with 1500 Watts Max. Power | Pioneer Electronics USA
TS-SW2502S4 - 10" Shallow-Mount Subwoofer with 1,200 Watts Max. Power | Pioneer Electronics USA
Hertz MPBX 250 S2 25cm/10 inch Mille Pro FLAT subwoofer in housing 500W RMS
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Alphasonik AS12DF 12" Down Fire Shallow Mount Flat Enclosure | Alphasonik
Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in