Every Sealed Subwoofer

Last updated: November 6, 2026

164 subwoofers in our rankings use a sealed enclosure. A sealed box rolls off at 12 dB per octave below its tuning point, a gentler slope than a ported box’s 24 dB per octave, which is why sealed subs tend to suit music and small-to-medium rooms better: the enclosure’s natural roll-off works with room gain rather than against it, and transient response is tighter since there’s no port storing and releasing energy.

A subwoofer’s rank here reflects its measured output and extension, not the enclosure type by itself. If you want sound quality weighed specifically for sealed designs rather than just every match, see our curated best sealed subwoofers picks instead.

This is every match, grouped by size and sorted by measured performance.

The Speakers

Prices on this page were last checked November 5, 2026 at 10:30 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Top picks

Every match 164

  1. JTR Speakers Kallos 12Sub

    A compact sealed 12 inch subwoofer with a very powerful amplifier, smooth tuning and high output in a Baltic birch cabinet.

    JTR Speakers $3,699 eBay
    $3,699
    sealed-12"
  2. MartinLogan Dynamo 1600X Discontinued

    A sealed 15 inch subwoofer with forceful, tight bass, front or down firing setup, and app based room correction, now discontinued.

    eBay
    $1,606.77
    sealed120.5 dB15"
  3. HSU Research ULS-15 MK2

    A sealed 15 inch subwoofer with tight, accurate bass, a great value in large subs.

    HSU Research $999.00 eBay
    $999
    sealed120.3 dB15"
  4. Power Sound Audio (PSA) TRIAX Discontinued

    A sealed subwoofer with three 15 inch drivers and massive deep bass headroom for big rooms, now discontinued but worth buying used.

    eBay
    $7,995
    sealed130.9 dB3x 15"
  5. Power Sound Audio (PSA) T18 Discontinued

    A sealed 18 inch subwoofer with deep, powerful bass for large home theaters and balanced inputs for pro style setups.

    eBay
    $4,995
    sealed129.7 dB18"
  6. JTR Speakers Captivator S2 Discontinued

    A tall sealed subwoofer with two 18 inch drivers and serious deep bass output for demanding movies in a large room.

    eBay
    $3,995
    sealed129.4 dB2x 18"
  7. Funk Audio Ultra 24.0

    A sealed 24 inch subwoofer with massive, very deep bass output for large rooms, built to order as a luxury cinema centerpiece.

    Funk Audio $18,565 eBay
    $18,565
    sealed127.9 dB24"
  8. Funk Audio Custom 21.0

    A sealed 21 inch subwoofer with powerful bass for movies and music, more compact than most subwoofers at its output level.

    eBay
    $6,061.91
    sealed127.7 dB21"
  9. Funk Audio Classic 18.0

    A sealed 18 inch subwoofer with punchy, powerful upper bass for movie effects and music, with balanced daisy chain inputs.

    Funk Audio $9,875 eBay
    $9,875
    sealed127.3 dB18"
  10. Funk Audio Ultra 21.0LX

    A sealed 21 inch subwoofer with deep, room filling bass for large home theaters, built to order with balanced inputs.

    Funk Audio $17,065 eBay
    $17,065
    sealed126.3 dB21"
  11. Power Sound Audio (PSA) XS30 Discontinued

    A sealed dual 15 inch subwoofer with deep, powerful bass in a fairly compact cabinet for its output.

    eBay
    $3,995
    sealed125.2 dB2x 15"
  12. Power Sound Audio (PSA) S3600i Discontinued

    A sealed dual 18 inch subwoofer with formidable upper bass punch for movie effects and music in a large room.

    eBay
    $5,995
    sealed125.0 dB2x 18"
  13. Paradigm Signature Sub 2

    A sealed subwoofer with six 10 inch drivers, strong deep bass, and flexible stereo, LFE, and balanced inputs.

    eBay
    $9,494.56
    sealed123.7 dB6x 10"
  14. Chase Home Theater SS18.1 PassiveDiscontinued

    A passive sealed 18 inch subwoofer with strong output for dedicated cinema rooms, paired with an outboard amplifier.

    eBay
    $2,499
    sealed125.2 dB18"
  15. ELAC SUB3070 Discontinued

    A sealed dual 12 inch subwoofer with strong upper bass punch and balanced stereo inputs, a good value buy used.

    eBay
    $999
    sealed123.9 dB2x 12"
  16. Power Sound Audio S2112

    A sealed 21 inch subwoofer with fast, tight bass and big output with no port noise, at a good price for its size.

    Power Sound Audio $2,299.00 eBay
    $2,299each
    sealed124.6 dB21"
  17. Paradigm XR13

    A sealed 13 inch flagship subwoofer with a very powerful amplifier and heavily braced cabinet for deep, clean home theater bass.

    Paradigm $4,999.99 eBay
    $4,999.99
    sealed-13"
  18. MartinLogan Depth 215

    A flagship sealed subwoofer with two opposed 15 inch woofers, a powerful amplifier, app control, and room correction.

    MartinLogan $6,999.99 eBay
    $6,999.99
    sealed-2 x 15" Carbon Aeroco…
  19. JL Audio Fathom f212v2

    A tall sealed subwoofer with two 12 inch drivers, a powerful amplifier, and automatic room optimization for deep, even bass.

    Paragon Sight & Sound $10,000.00 eBay
    $10,000
    sealed-2 x 12" W7 drivers
  20. RTJ Audio 18Sub Discontinued

    A sealed 18 inch subwoofer with strong deep bass and plenty of headroom for movies in a large room.

    eBay
    $7,000
    sealed123.4 dB18"
  21. Perlisten Audio D215s

    A sealed dual 15 inch subwoofer with powerful deep bass for big home theaters and both balanced and RCA inputs.

    eBay
    $9,000
    sealed123.2 dB2x 15"
  22. Funk Audio Classic 21.0L

    A sealed 21 inch subwoofer with deep, powerful bass for large rooms, relatively affordable for its size.

    eBay
    $2,995
    sealed122.5 dB21"
  23. Elemental Designs A7S-450 Discontinued

    A sealed 18 inch cube subwoofer with strong upper bass punch for movies and music, a bargain when found used.

    eBay
    $499
    sealed122.3 dB18"
  24. Power Sound Audio (PSA) XS30SE Discontinued

    A sealed dual 15 inch subwoofer with tight, powerful bass in a cabinet compact for its driver count.

    eBay
    $4,495
    sealed122.2 dB2x 15"
  25. RBH Sound SV-1212PR Discontinued

    A slim, tall sealed dual 12 inch subwoofer with strong deep bass and balanced inputs, easy to fit beside furniture.

    eBay
    $1,499
    sealed122.2 dB2x 12"

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