SUBWOOFER SYSTEM FEATURES AND SPECIFICATIONS. Quality car audio from well-known AUDIOBAHN from the USA. Inch Shallow 1500w Car Audio Subwoofer Driver Bass Subwoofer New WITH Heavy duty. 12 Subwoofer with BOX single 4-ohm voice coil. 12 Single 4-Ohm Shallow Mount Sub-Woofer Air-Tight Sealed Enclosure System. AUDIOBAHN’s TQ12DF features. Constructed from High Quality MDF. Built-in quality speaker terminals. Front is straight and Rear is slanted. Finished in Heavy duty Black Aviation Carpet. Mitre Joint box construction. Specifically Designed heavy duty subwoofer. Heavy Gauge steel Metal Basket. Single 4-ohm 4-layer ASV Voice Coil. Polypropylene Cone with Foam Surround. Progressive Rolled “Nomex” Spiders. Computer Engineered & Precision Tuned Enclosure. Description: 300mm (12) Single-Voice-Coil Subwoofer. Frequency Response: 30Hz -500Hz. Rigid Spun Aluminium Cone with Hi-Strength Rubber EPDM. 5/8 Durable MDF Wood Construction for Reduced Vibration. Voice Coil: Copper Wound Kapton Voice Coil. Enclosure Volume: 0.8 cu. Terminal Type: Push Type Terminals. Cone Material: Spun Aluminium Cone · Sensitivity: 95Db. Surrounded Material: HI Strength Rubber EPDM Enhanced Surround. Magnet: 40 oz Ferrite Hi Temperature Magnet Structure. Cone: Polypropylene woofer cone with Foam Surround and Dust cap I-Rubber sealant basket Poly cotton spider with Woven Round tinsel leads Hi-roll rubber surround Mounting Depth: 125mm. Customized Rubber Magnet Boot. High Density Rubber Surround. Heavy Gauge Steel Basket with Industrial Texture Painting. Enhanced Cooling T-Yoke Design with Black Anodized Finish. High-temp 2 4-layer, Aluminium former voice coil.