All Alpine Car Subwoofers (132)

Alpine SWT-12S4 1500W Max Single 12" Bass Reflex Sealed Subwoofer Tube Enclosure With 1500W peak power handling, this ready-to-use bass reflex subwoofer tube is just for big bass fans. A protective grille ensures that nothing sliding around in the trunk damages the woofer. General Features: 12" 4 ohm Bass Reflex Series Subwoofer 1500 Watts Peak Power Handling 300 Watts RMS Power Handling Heavy-Duty Subwoofer Grill Stitched Alpine Logo Carpeted Exterior Push SPK Terminal Installation Brackets and Belts Included Frequency Response: 28 - 200 Hz Sensitivity: 92 dB Speaker Impedance: 4 Ω Enclosure Dimensions: 12.75"W x 26" D Authorized Internet Dealer 1-year Manufacturer's Warranty Subwoofer Features: 12" Passive Subwoofer Push SPK Terminal Voice coil size/type Sensitivity: 92dB Enclosure Features: Tube enclosure Black Carpet Finish with White Alpine Logo Grille included Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine SWT-S10 1200W Max Single 10" Sealed Subwoofer Bass Tube Enclosure Combining the intense low-bass performance and ground-shaking output of the traditional Type-R subwoofers in a thin package optimized for tiny enclosures. The SWT 10” Truck Subwoofer has been engineered to offer more installation flexibility without sacrificing enormous output to build the ideal sound system for your truck. At 4-1/8” deep. These subs provide deep bass performance where it usually couldn’t fit in a truck. The vented pole optimized for a 4-1/8” deep box is the ideal enclosure size, meaning excellent bass performance can fit just about anywhere in your truck. General Features: Single 10" Sealed Subwoofer Tube Enclosure 1200 Watts MAX Power Handling 250 Watts RMS Power Handling Final Impedance: 4 ohms Preloaded with a single 10" Subwoofer Sealed enclosure with embroidered black carpet Enclosure Dimensions: 11.25"W x 23.65" D 1-year Manufacturer's Warranty Subwoofer Features: 10" Passive Subwoofer Push SPK Terminal Frequency Response: 35-200 Hz Sensitivity: 90dB Enclosure Features: Tube enclosure Black Carpet Finish with White Alpine Logo Grille included What is in the SWT-S10 package: W10S4 owner's manual One 10" Subwoofer per box Adhesive-backed foam gasket Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine RS-W10D4 10" 1200 Watts Shallow Mount Dual 2-Ohm Voice Coil R Series subwooferAlpine's RS-W10D4 R-Series With an ultra-shallow subwoofer design and powerful sound output, the R-Series Shallow Subwoofers give you the best of both worlds in size and sound. General Features: 10" Dual 4 ohms Type-R Series Shallow Subwoofer Peak Power Handling: 1200 watts RMS Power Handling: 600 watts Polypropylene with aluminum dust cap Cone Butyl Rubber Surround Alpine Gen2 DD Linear Magnetic Circuit Cast aluminum basket 4" High-Temperature Voice coil 20 mm Xmax Neodymium magnet motor structure Frequency Response: 29 - 200 Hz Resonance Frequency (Fs): 28 Hz Sensitivity: 81 dB Top-mount depth: 3.25" Authorized Internet Dealer 1-year Manufacturer's Warranty What is in the RS-W10D4 package: RS-W10D4 Owner's Manual 10" R-Series Shallow Subwoofer Warranty Information ⚠️Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

2 Alpine S2-W10D2 1800W Max (600W RMS) 10" S-Series Dual 2 Ohm Car Subwoofer + Absolute KIT8 8 Gauge Amp Kit Alpine introduces the all-new S-Series Subwoofers. Their unique design substantially improves bass output and provides installation versatility. Each S-Series subwoofer uses a custom-stamped steel frame and is available in twelve, ten, and eight-inch models. These high-strength frames were designed to withstand the rigors of the improved S-Series motor. They have frame leg vents, a vented back plate to help cool the subwoofer voice coil and motor parts, and a shallow design to help fit in smaller spaces. The S-Series Subwoofers incorporate two strontium ferrite magnets stacked together, providing increased motor strength and excursion and ultimately delivering accurate bass to your music. The convenient push-type insert terminals, featuring a dual voice coil jumper system, will significantly reduce installation time. Just strip the speaker insulation at the wire end, then insert the bare wire into the hole of the spring-loaded push terminal. At the same time, the concealed mount gasket system gives any vehicle a clean, finished appearance. General Features: 10" 2 ohm S-Series (Type-S) Subwoofer RMS Power Handling: 600 watts Peak Power Handling: 1800 watts  Recommended power range: 250- 600W RMS Pulp/Kevlar Cone High Amplitude Multi-Roll (HAMR) Surround Progressive Spider with Reinforced Layer Tinsel Leads Airflow Optimized Dual Flare Pole Vent High Strength Steel Frame Basket 8 AWG Push Terminals with VC Configuration Jumpers Dual Voice Coil High-Grade Strontium Ferrite Magnets Top-mount depth: 4-11/16" Cutout diameter: 8-13/16 Frequency Response: 26- 200Hz Sensitivity: 86.4dB Resonance Frequency (Fs): 33 Hz Authorized Dealer 1-year Manufacturer's Warranty What is in the S2-W10D2 package? S2-W10D2 owner's manual One 10" Dual 2-ohm voice coil subwoofer 1 Rubber concealing ring Two 3" jumper cables (each has a single banana connector on each end) Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to chemicals known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine 2- S2-W12D4 12" S-Series Dual 4 Ohm Car Subwoofer & (2) KTE-12G.3 Grille Bundle Alpine S2-W12D4 - Next-Generation 12” S-Series Subwoofer with Dual 4-Ohm Voice Coils - Add extra punch to your sound system with the S-Series S2-W12D4 12" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With an impressive power handling of 600W RMS and a peak power handling of 1800W, the Next-Gen 12” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 86dB (1W/1m), these subs ensure powerful and accurate bass reproduction across diverse music genres.  ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. FLEXIBLE APPLICATION A Dual Voice Coil (DVC) with easy configuration jumpers make installing the S-Series subwoofers a breeze. A new twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. PERFECT POWER MATCH Maximize the potential of your S-Series subwoofers with Alpine's perfectly power-matched S-Series amps. Power a single S2-W12D4 subwoofer effortlessly with the 600W S2-A60M mono amplifier, or for an even bigger impact, pair two or more S2-W12D4 subs with the powerful 1200W S2-A120M amp to ensure optimal sound quality and performance. FEATURES Dual Voice Coil Subwoofers with Configuration Jumpers Carbon Fiber / Poly Propylene Cone Poly Propylene / Ceramic Dust Cap High-Grade Strontium Ferrite Magnets Twist-Lock Grille Mount System High-Amplitude Multi-Roll (H.A.M.R.) Surround Push-Type Speaker Terminals Alpine KTE-12G.3 Grille for 12" Type-R and Type-S subwoofers S2-W12: Powerful and Reliable Bass: Upgrade your sound system with the Alpine S2-W12D4 Subwoofer, designed for robust and reliable bass performance at a wallet-friendly price point. S2-W12: Versatile Performance: Boasting an impressive power handling of 600W RMS and 1800W peak, the Next-Gen 12” S-Series Subwoofer delivers outstanding performance value. With a wide frequency response range of 23Hz to 215Hz and a sensitivity of 86.2dB (1W/1m), enjoy powerful and accurate bass across various music genres. S2-W12: Deep, Distortion-Free Sound: Experience enhanced depth and richness in your music thanks to the lightweight yet sturdy combination of carbon fiber and polypropylene cone in the Next-Gen S-Series Subwoofer, providing deep and low-distortion bass. S2-W12: Easy Installation and Protection: The Dual Voice Coil (DVC) with easy configuration jumpers ensures a hassle-free installation. The twist-lock grille mounting system makes adding or removing an optional grille a breeze, providing added protection to the cone. Warning:This product can expose you to, known to the State of California to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W12D4 12" S-Series Dual 4 Ohm Car Subwoofer, 1800W Max, 600W RMS Alpine S2-W12D4 - Next-Generation 12” S-Series Subwoofer with Dual 4-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W12D4 12" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With an impressive power handling of 600W RMS and a peak power handling of 1800W, the Next-Gen 12” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 86dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. FLEXIBLE APPLICATION A Dual Voice Coil (DVC) with easy configuration jumpers makes installing the S-Series subwoofers a breeze. A new twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. PERFECT POWER MATCH Maximize the potential of your S-Series subwoofers with Alpine's perfectly power-matched S-Series amps. Power a single S2-W12D4 subwoofer effortlessly with the 600W S2-A60M mono amplifier, or for an even bigger impact, pair two or more S2-W12D4 subs with the powerful 1200W S2-A120M amp to ensure optimal sound quality and performance. General Features: 12" subwoofer with dual 4-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 23-215 Hz power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts sensitivity: 86.2 dB sealed box volume: 0.55-1 cubic feet ported box volume: 1-1.5 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 2.6" High-Temperature Copper Voice coil 15 mm Xmax 64 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 4.89" Cutout diameter: 10.64" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W12D4 package: Alpine S2-W12D4 owner's manual One 12" Dual 4-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W12D2 12" S-Series Dual 4 Ohm Car Subwoofer, 1800W Max, 600W RMS Alpine S2-W12D2 - Next-Generation 12” S-Series Subwoofer with Dual 2-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W12D2 12" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With an impressive power handling of 600W RMS and a peak power handling of 1800W, the Next-Gen 12” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 86dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. FLEXIBLE APPLICATION A Dual Voice Coil (DVC) with easy configuration jumpers makes installing the S-Series subwoofers a breeze. A new twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. PERFECT POWER MATCH Maximize the potential of your S-Series subwoofers with Alpine's perfectly power-matched S-Series amps. Power a single S2-W12D2 subwoofer effortlessly with the 600W S2-A60M mono amplifier, or for an even bigger impact, pair two or more S2-W12D4 subs with the powerful 1200W S2-A120M amp to ensure optimal sound quality and performance. General Features: 12" subwoofer with dual 2-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 23-215 Hz power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts sensitivity: 86.2 dB sealed box volume: 0.55-1 cubic feet ported box volume: 1-1.5 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 2.6" High-Temperature Copper Voice coil 15 mm Xmax 64 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 4.89" Cutout diameter: 10.64" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W12D2 package: Alpine S2-W12D2 owner's manual One 12" Dual 2-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W8D2 8" S-Series Dual 2 Ohm Car Subwoofer, 900W Max, 300W RMS Alpine S2-W8D2 - Next-Generation 8” S-Series Subwoofer with Dual 2-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W8D2 8" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With a power handling of 300W RMS and a peak power handling of 900W, the Next-Gen 8” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 83dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. General Features: 8" subwoofer with dual 2-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 35-215 Hz power handling: 300 watts RMS (150 watts per coil) peak power handling: 900 watts sensitivity: 82.7 dB sealed box volume: 0.15-0.50 cubic feet ported box volume: 0.35-0.71 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 1.4" High-Temperature Copper Voice coil 13 mm Xmax 34 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 3.71" Cutout diameter: 6.85" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W8D2 package: Alpine S2-W8D2 owner's manual One 8" Dual 2-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W8D4 8" S-Series Dual 4 Ohm Car Subwoofer, 900W Max, 300W RMS Alpine S2-W8D4 - Next-Generation 8” S-Series Subwoofer with Dual 4-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W8D4 8" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With a power handling of 300W RMS and a peak power handling of 900W, the Next-Gen 8” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 23Hz to 215Hz and a sensitivity of 83dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. General Features: 8" subwoofer with dual 4-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 35-215 Hz power handling: 300 watts RMS (150 watts per coil) peak power handling: 900 watts sensitivity: 82.7 dB sealed box volume: 0.18-0.53 cubic feet ported box volume: 0.38-0.73 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 1.4" High-Temperature Copper Voice coil 13 mm Xmax 34 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 3.71" Cutout diameter: 6.85" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W8D4 package: Alpine S2-W8D4 owner's manual One 8" Dual 4-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W10D2 10" S-Series Dual 2 Ohm Car Subwoofer, 1800W Max, 600W RMS Alpine S2-W10D2 - Next-Generation 10” S-Series Subwoofer with Dual 2-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W10D2 10" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With an impressive power handling of 600W RMS and a peak power handling of 1800W, the Next-Gen 10” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 25Hz to 215Hz and a sensitivity of 85dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. FLEXIBLE APPLICATION A Dual Voice Coil (DVC) with easy configuration jumpers makes installing the S-Series subwoofers a breeze. A new twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. PERFECT POWER MATCH Maximize the potential of your S-Series subwoofers with Alpine's perfectly power-matched S-Series amps. Power a single S2-W10D2 subwoofer effortlessly with the 600W S2-A60M mono amplifier, or for an even bigger impact, pair two or more S2-W10D4 subs with the powerful 1200W S2-A120M amp to ensure optimal sound quality and performance. General Features: 10" subwoofer with dual 2-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 23-215 Hz power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts sensitivity: 86.2 dB sealed box volume: 0.4-0.85 cubic feet ported box volume: 0.75-1.3 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 2.6" High-Temperature Copper Voice coil 15 mm Xmax 64 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 4.54" Cutout diameter: 8.94" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W10D2 package: Alpine S2-W10D2 owner's manual One 10" Dual 2-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

Alpine S2-W10D4 10" S-Series Dual 4 Ohm Car Subwoofer, 1800W Max, 600W RMS Alpine S2-W10D4 - Next-Generation 10” S-Series Subwoofer with Dual 4-Ohm Voice Coils Add extra punch to your sound system with the S-Series S2-W10D4 10" Subwoofer; now redesigned for powerful and reliable bass performance at an approachable price point. PERFORMANCE & VALUE With an impressive power handling of 600W RMS and a peak power handling of 1800W, the Next-Gen 10” S-Series Subwoofers deliver outstanding performance value. Boasting a wide frequency response range of 25Hz to 215Hz and a sensitivity of 85dB (1W/1m), these subs ensure powerful and accurate bass reproduction across a diverse range of music genres. ENHANCED PUNCH Featuring the lightweight yet sturdy combination of carbon fiber and polypropylene, the Next-Gen S-Series Subwoofer cone delivers deep, low-distortion bass that enhances the depth and richness of your music. FLEXIBLE APPLICATION A Dual Voice Coil (DVC) with easy configuration jumpers makes installing the S-Series subwoofers a breeze. A new twist-lock grille mounting system makes it easy to install and remove an optional grille without mounting screws for added protection to the cone. PERFECT POWER MATCH Maximize the potential of your S-Series subwoofers with Alpine's perfectly power-matched S-Series amps. Power a single S2-W10D2 subwoofer effortlessly with the 600W S2-A60M mono amplifier, or for an even bigger impact, pair two or more S2-W10D4 subs with the powerful 1200W S2-A120M amp to ensure optimal sound quality and performance. General Features: 10" subwoofer with dual 4-ohm voice coils carbon fiber/polypropylene cone with HAMR rubber surround frequency response: 23-215 Hz power handling: 600 watts RMS (300 watts per coil) peak power handling: 1,800 watts sensitivity: 86.2 dB sealed box volume: 0.4-0.85 cubic feet ported box volume: 0.75-1.3 cubic feet Twist-lock grille mount system Poly Propylene / Ceramic Dust Cap 2.6" High-Temperature Copper Voice coil 15 mm Xmax 64 oz. Single Stacked Ferrite magnet motor structure Top-mount depth: 4.54" Cutout diameter: 8.94" Authorized Internet Dealer 1-year Manufacturer's Warranty What's in the S2-W10D4 package: Alpine S2-W10D4 owner's manual One 10" Dual 4-ohm voice coil subwoofer Two 3" jumper cables Subwoofer Application Guide Online product registration information Warranty Information Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.

  Alpine Bundle Compatible with Universal Vehicles W10S4 Single 10" Loaded Sub Box Enclosure with S2-A60M 1200W Amplifier This Package Includes the Following Items: 1 x Absolute SAG10 Single 10" Subwoofer Regular Standard Cab Truck Sub Box Enclosure 5/8" MDF 1 x Alpine W10S4 Car Audio Type S Series Sub Dual 4 Ohm 750W Peak 10" Subwoofer Alpine S2-A60M Car Audio Type S Series Amp Class D Subwoofer 1200W Amplifier 1 x Absolute KIT4 4 Gauge AMP Kit  Alpine W10S4 10" BassLine Series 10" 750W Max (250W RMS) 4-ohm Bass Subwoofer Legendary Alpine quality at an affordable priceCar audio enthusiasts know that Alpine is the leader in technology and innovation. Their reputation for developing the most reliable products is legendary. The BassLine product line is their quest to give customers a quality product that won't break the bank.The surround and wattage match made in heaven.The 250 watts of continuous power that the W12S4 handles complements the poly-foam surround that Alpine went with. It provides the best sound quality money can buy at this price point.General Features: 10-inch single 4Ω subwoofer Polypropylene and mica cone with poly-foam surround Peak Power Handling: 750 watts RMS Power Handling: 250 watts Recommended power range: 50W - 250W RMS Polypropylene-Mica cone High-excursion poly-foam surround Progressive Wavelit Ribs (P.W.R.) cone design Frequency Response: 32Hz-200Hz 5-5/16-inch mounting depth Recommended Sealed box volume: 1.09 Cu. Ft. Recommended Ported box volume: 1.91 Cu. ft Bass For All High-strength custom steel frame 8AWG push terminals 2" voice coil 52oz. magnet Recommended Box Volume: 0.5-1.5 Cu. ft.3 Top-mount depth: 5-5/16" Cutout diameter: 10-5/8" Frequency Response: 22 - 200Hz Sensitivity: 87.9dB Resonance Frequency (Fs): 30 Performance: Efficiency & Tight Bass An optimized magnet circuit allows more focused magnetism in the gap, improving efficiency. This means tighter bass control and more output! What's in the W10S4 package: One 10" Subwoofer Adhesive-backed foam gasket Application Guide Online product registration information Warranty information Important Notice! W10S4 owner's manual Warning:This product can expose you to, known to the State of California, to cause cancer. For more information, go to P65Warnings.ca.