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21 inch woofers

Best Buy customers often prefer the following products when searching for 21 Inch Woofers.

Browse the top-ranked list of 21 Inch Woofers below along with associated reviews and opinions.

Browse the top-ranked list of 21 Inch Woofers below along with associated reviews and opinions.

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  1. Product Description

    The LS15T SUB includes a wide bandwidth Sonance Laminated Core Transformer with an adjustable tap, making it flexible and powerful for any outdoor landscape application.
    Your price for this item is $2,999.98

    Product Description

    The LS15T SUB includes a wide bandwidth Sonance Laminated Core Transformer with an adjustable tap, making it flexible and powerful for any outdoor landscape application.
  2. Model:PB16-ULTRA - BLACK OAK - 120V
    SKU:5708035
    Top comment

    "Best home subwoofer I've heard...Watching this thing work is mesmerizing...I have purchased 2 of the pb16s and absolutely love them they will shake your entire house and everything in it great subs worth every penny...In my years of owning higher end gear and searching for something that could somehow make the viewing experience more enjoyable"

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    Product Description

    Increase the bass output of your home stereo system with this 16-inch SVS subwoofer. It provides robust lows for your next party or event thanks to 1500W of continuous power, and it has a fiberglass-resin composite driver that doesn't flex or lose control with increased volumes. This SVS subwoofer has a front-panel display for easy control.
    Your price for this item is $2,499.98
    Top comment

    "Best home subwoofer I've heard...Watching this thing work is mesmerizing...I have purchased 2 of the pb16s and absolutely love them they will shake your entire house and everything in it great subs worth every penny...In my years of owning higher end gear and searching for something that could somehow make the viewing experience more enjoyable"

    ""

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    Product Description

    Increase the bass output of your home stereo system with this 16-inch SVS subwoofer. It provides robust lows for your next party or event thanks to 1500W of continuous power, and it has a fiberglass-resin composite driver that doesn't flex or lose control with increased volumes. This SVS subwoofer has a front-panel display for easy control.
  3. Model:PB-4000-PIANO GLOSS
    SKU:6174938

    Product Description

    Fine-tune your bass experience with this SVS ported box subwoofer. It works with the SVS app for easy adjustment of EQ, crossover and other DSP settings, and its cool-running 1200W Class-D amplifier provides efficient yet powerful performance. Select from standard, extended and sealed modes to achieve a desired frequency response of this flexible SVS ported box subwoofer.
    Your price for this item is $1,999.98

    Product Description

    Fine-tune your bass experience with this SVS ported box subwoofer. It works with the SVS app for easy adjustment of EQ, crossover and other DSP settings, and its cool-running 1200W Class-D amplifier provides efficient yet powerful performance. Select from standard, extended and sealed modes to achieve a desired frequency response of this flexible SVS ported box subwoofer.
  4. Product Description

    Feel the dynamics of subtle or intense bass details with this SVS ported box subwoofer. Its front-firing 13.5-inch driver provides low-frequency extension down to 13Hz for enhanced sonic accuracy, and it lets you fine-tune its DSP settings via the SVS app. The 1200W Class D amplifier of this SVS ported box subwoofer keeps powerful bass details clean and precise.
    Your price for this item is $1,899.98

    Product Description

    Feel the dynamics of subtle or intense bass details with this SVS ported box subwoofer. Its front-firing 13.5-inch driver provides low-frequency extension down to 13Hz for enhanced sonic accuracy, and it lets you fine-tune its DSP settings via the SVS app. The 1200W Class D amplifier of this SVS ported box subwoofer keeps powerful bass details clean and precise.
  5. Top comment

    "Awesome medium sized sub...Hands down the best relatively compact sub...In my room, I can get a FLAT corrected EQ curve to 15Hz at about 75db from Anthem Room Correction, WOW...This is the best relatively compact sub hands down that won't overwhelm a room with its size"

    ""

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    Product Description

    Feel the bass with this 12-inch KEF Kube subwoofer. Its built-in Class D amplifier connects directly to mixers, reducing the need for extra cables, and the 114dB output provides a pulsating boom that fills a large room. This sealed KEF Kube subwoofer's flexible configuration lets you design a sound system to match your space.
    Your price for this item is $699.98
    Top comment

    "Awesome medium sized sub...Hands down the best relatively compact sub...In my room, I can get a FLAT corrected EQ curve to 15Hz at about 75db from Anthem Room Correction, WOW...This is the best relatively compact sub hands down that won't overwhelm a room with its size"

    ""

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    Product Description

    Feel the bass with this 12-inch KEF Kube subwoofer. Its built-in Class D amplifier connects directly to mixers, reducing the need for extra cables, and the 114dB output provides a pulsating boom that fills a large room. This sealed KEF Kube subwoofer's flexible configuration lets you design a sound system to match your space.
  6. Product Description

    Wire your backyard for beautiful audio with this Sonance woofer. Its boulder-shaped polypropylene exterior lets it blends easily into outdoor landscapes, and its weather resistance stands up to rain, snow and heat. This Sonance woofer handles up to 150 watts for clear, powerful sound, and its dual voice coil provides several wiring options.
    Your price for this item is $539.98

    Product Description

    Wire your backyard for beautiful audio with this Sonance woofer. Its boulder-shaped polypropylene exterior lets it blends easily into outdoor landscapes, and its weather resistance stands up to rain, snow and heat. This Sonance woofer handles up to 150 watts for clear, powerful sound, and its dual voice coil provides several wiring options.
  7. Top comment

    "What a speaker man...80lbs of pure muscle...In addition to the battle sequences, the R115SW also enhanced some of the ambient bass sounds that I did not notice before; in particular, in the woods you will notice several rumbles that were not tied to any explosion or musket shot...Back in the audible range, the R-115SW can faithfully reproduce more of the nuances of bass instruments in live music"

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    Product Description

    The R-115SW subwoofer is the perfect combination of power, sophisticated and heart-pounding bass. Packing a serious punch, the R-115SW will not only wake your neighbors, it'll piss them off. The way only Klipsch can.
    Your price for this item is $854.99
    Clearance
    Save $44.99
    The regular price is $899.98
    Top comment

    "What a speaker man...80lbs of pure muscle...In addition to the battle sequences, the R115SW also enhanced some of the ambient bass sounds that I did not notice before; in particular, in the woods you will notice several rumbles that were not tied to any explosion or musket shot...Back in the audible range, the R-115SW can faithfully reproduce more of the nuances of bass instruments in live music"

    ""

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    Product Description

    The R-115SW subwoofer is the perfect combination of power, sophisticated and heart-pounding bass. Packing a serious punch, the R-115SW will not only wake your neighbors, it'll piss them off. The way only Klipsch can.
  8. Model:SB16-ULTRA - BLACK OAK - 120V
    SKU:5708038
    Top comment

    "Good but not great...Oh and it's durable...I started with 1 and was so impressed that I ordered a 2nd for a dual setup...I sure that I don't have it setup perfect"

    ""

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    Product Description

    Add powerful bass to your favorite tunes with this SVS Audio subwoofer. The 16-inch driver delivers a massive 1500W of power, while the fiberglass-resin composite cabinet and rigid internal bracing handles extreme volume outputs without flexing. The accompanying smartphone app provides real-time control over this SVS Audio subwoofer from afar.
    Your price for this item is $1,999.98
    Top comment

    "Good but not great...Oh and it's durable...I started with 1 and was so impressed that I ordered a 2nd for a dual setup...I sure that I don't have it setup perfect"

    ""

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    Product Description

    Add powerful bass to your favorite tunes with this SVS Audio subwoofer. The 16-inch driver delivers a massive 1500W of power, while the fiberglass-resin composite cabinet and rigid internal bracing handles extreme volume outputs without flexing. The accompanying smartphone app provides real-time control over this SVS Audio subwoofer from afar.
  9. Model:SB16-ULTRA - PIANO GLOSS - 120
    SKU:5708039
    Top comment

    "Good but not great...Oh and it's durable...I started with 1 and was so impressed that I ordered a 2nd for a dual setup...This one surpasses both of those in not only visceral impact but more importantly, detail"

    ""

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    Product Description

    Listen to sound at incredible volume with this 16-inch SVS Ultra subwoofer. Its 1500W RMS of power produce ultralow bass for thunderous vibrations and tone, letting you enjoy complete immersion in your tunes or movies. Fiberglass construction ensures minimal flexing and maximum sound control for distortion-free audio accuracy from this SVS Ultra subwoofer.
    Your price for this item is $1,999.98
    Top comment

    "Good but not great...Oh and it's durable...I started with 1 and was so impressed that I ordered a 2nd for a dual setup...This one surpasses both of those in not only visceral impact but more importantly, detail"

    ""

    Hear more from customers

    Product Description

    Listen to sound at incredible volume with this 16-inch SVS Ultra subwoofer. Its 1500W RMS of power produce ultralow bass for thunderous vibrations and tone, letting you enjoy complete immersion in your tunes or movies. Fiberglass construction ensures minimal flexing and maximum sound control for distortion-free audio accuracy from this SVS Ultra subwoofer.
  10. Product Description

    Enjoy music from your garden with this Sonance RK10W granite subwoofer. It looks like a rock and blends in seamlessly with your plants, so you hear the sound but don’t see the equipment. This Sonance RK10W granite subwoofer enriches the bass of your system and its IPX4 rating ensures it can handle nature’s elements.
    Your price for this item is $539.98

    Product Description

    Enjoy music from your garden with this Sonance RK10W granite subwoofer. It looks like a rock and blends in seamlessly with your plants, so you hear the sound but don’t see the equipment. This Sonance RK10W granite subwoofer enriches the bass of your system and its IPX4 rating ensures it can handle nature’s elements.
  11. Product Description

    Enjoy theater sound with this sealed KEF Kube subwoofer. Its 10-inch driver provides midsized rooms with 111dB of full, resonant tones, and the 24-140Hz frequency range keeps the air pulsating with deep bass. This KEF Kube subwoofer's built-in Class D amplifier lets you connect directly to mixers and avoid cable clutter.
    Your price for this item is $599.98

    Product Description

    Enjoy theater sound with this sealed KEF Kube subwoofer. Its 10-inch driver provides midsized rooms with 111dB of full, resonant tones, and the 24-140Hz frequency range keeps the air pulsating with deep bass. This KEF Kube subwoofer's built-in Class D amplifier lets you connect directly to mixers and avoid cable clutter.
  12. Product Description

    Add powerful bass to your next party with this 18-inch Gemini subwoofer. Its 3400W Class D amplifier provides professional-quality sound, and the high-temperature pure copper voice coil creates heart-pounding bass. This Gemini subwoofer has integrated handles for easy portability and a digital sound processor with multiple presets for variable environments.
    Your price for this item is $499.99

    Product Description

    Add powerful bass to your next party with this 18-inch Gemini subwoofer. Its 3400W Class D amplifier provides professional-quality sound, and the high-temperature pure copper voice coil creates heart-pounding bass. This Gemini subwoofer has integrated handles for easy portability and a digital sound processor with multiple presets for variable environments.
  13. Product Description

    When technology advances, products do as well. Does Lamborghini need to refine their cars every 2 years? NO, they do because they can. After 6 years, it is time for a change. Say "See Ya!" to the old MOFO, and welcome the MOFO-X subwoofers! The motor is refined and increases efficiency dramatically! MOFO-X subs use a non-pressed pulp cone for durability and smooth low bass. Like the original MOFOs, this model still use an aluminum dustcap that couples to the voice coil former and extends over the cone. Why? The fins brace the cone and eliminate cone flex during high excursion. Since the cap is aluminum and coupled to the coil former, it acts as a heat sink or heat extractor. The MOFO-X subs yield superior performance!

    Your price for this item is $149.99

    Product Description

    When technology advances, products do as well. Does Lamborghini need to refine their cars every 2 years? NO, they do because they can. After 6 years, it is time for a change. Say "See Ya!" to the old MOFO, and welcome the MOFO-X subwoofers! The motor is refined and increases efficiency dramatically! MOFO-X subs use a non-pressed pulp cone for durability and smooth low bass. Like the original MOFOs, this model still use an aluminum dustcap that couples to the voice coil former and extends over the cone. Why? The fins brace the cone and eliminate cone flex during high excursion. Since the cap is aluminum and coupled to the coil former, it acts as a heat sink or heat extractor. The MOFO-X subs yield superior performance!

  14. Model:AW10-LSUB-BR
    SKU:6225332

    Product Description

    Bring music outdoors with this 10-inch Russound subwoofer. Its tuned port tube delivers tight, powerful bass, and its silicone elbow offers flexibility in extreme temperatures. The bass chamber of this dark brown Russound subwoofer is made of PVC for durability underground, and it blends in with the natural landscape environment.
    Your price for this item is $689.00
    Save $611.98
    The previous price was $1,300.98

    Product Description

    Bring music outdoors with this 10-inch Russound subwoofer. Its tuned port tube delivers tight, powerful bass, and its silicone elbow offers flexibility in extreme temperatures. The bass chamber of this dark brown Russound subwoofer is made of PVC for durability underground, and it blends in with the natural landscape environment.
  15. Product Description

    Get rich bass and uniform coverage from your audio system with this Sonance Sonarray subwoofer. The HDPE enclosure resists corrosion, and the canopy design blends in seamlessly with your outdoor landscape. This 8-inch Sonance Sonarray subwoofer handles up to 150W and has a dual voice coil to provide multiple wiring options.
    Your price for this item is $599.98

    Product Description

    Get rich bass and uniform coverage from your audio system with this Sonance Sonarray subwoofer. The HDPE enclosure resists corrosion, and the canopy design blends in seamlessly with your outdoor landscape. This 8-inch Sonance Sonarray subwoofer handles up to 150W and has a dual voice coil to provide multiple wiring options.