Elemental Designs A7S-450 Review: Rated 4.2/5

Last updated: October 21, 2026

The Elemental Designs A7S-450 is rated 4.2/5 for sound quality, #49 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.

Elemental Designs A7S-450 · Editor's rating 4.2/5, ranked #49 of 143 Large Home Subwoofers (Over 75 lbs)

Prices on this page were last checked October 28, 2026 at 1:06 AM 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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#49 Elemental Designs A7S-450: $499 Discontinued eBay

Pros: A sealed 18 inch cube subwoofer with strong upper bass punch for movies and music, a bargain when found used. Independent CEA-2010 testing records 103.4 dB at 20 Hz and 122.3 dB through 40-80 Hz. The sealed enclosure with 18” (457mm) driver delivers formidable upper-bass output for movie effects and music.

Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 565.1H x 565.1W x 565.1D mm cabinet and 63.5 kg mass still require deliberate placement and calibration. Discontinued.

Is the Elemental Designs A7S-450 right for you?

Skip it if

  • you need to move it often (64 kg each).
  • you want to buy it new: it is discontinued.
Released2009 (17 years ago)
CEA-2010-A Average (40-80Hz)122.3 dB
CountryUnited States
Dimensions22.2”H x 22.2”W x 22.2”D (565.1 x 565.1 x 565.1 mm)
Drivers18” (457mm) driver
Enclosuresealed
Measurement SourceAudioholics
Output SPL at 12.5 Hz93.0 dB
Output SPL at 15 Hz97.6 dB
Output SPL at 20 Hz103.4 dB
Output SPL at 25 Hz109.8 dB
Output SPL at 31.5 Hz115.5 dB
Output SPL at 40 Hz120.8 dB
Output SPL at 50 Hz124.0 dB
Output SPL at 63 Hz123.1 dB
Output SPL at 80 Hz121.3 dB
Output SPL at 100 Hz119.8 dB
Output SPL at 125 Hz118.8 dB
Weight140 lbs (63.5 kg)

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