Pro Audio Technology LFC-24sm Review: Rated 4.6/5

Last updated: October 21, 2026

The Pro Audio Technology LFC-24sm is rated 4.6/5 for sound quality, #4 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.

Pro Audio Technology LFC-24sm · Editor's rating 4.6/5, ranked #4 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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#4 Pro Audio Technology LFC-24sm: $10,000 Passive eBay

Pros: A giant 24 inch ported subwoofer with enormous deep bass output, built for large dedicated cinema rooms. Independent CEA-2010 testing records 123.7 dB at 20 Hz and 135.5 dB (avg of 3/4 bands) through 40-80 Hz. The ported, front enclosure with 24” (610mm) driver is best suited to demanding film bass in a large room.

Cons: The 660.4H x 1536.7W x 533.4D mm cabinet and 120.7 kg mass still need deliberate placement and calibration.

ReleasedAug 2013 (13 years ago)
CEA-2010-A Average (40-80Hz)135.5 dB (avg of 3/4 bands)
Cabinet Colorblack
CountryUnited States
Dimensions26”H x 60.5”W x 21”D (660.4 x 1536.7 x 533.4 mm)
Drivers24” (610mm) driver
Enclosureported, front
Measurement SourceBrent Butterworth
Output SPL at 20 Hz123.7 dB
Output SPL at 25 Hz131.4 dB
Output SPL at 31.5 Hz133.6 dB
Output SPL at 40 Hz135.4 dB
Output SPL at 50 Hz136.0 dB
Output SPL at 63 Hz135.2 dB
PassiveYes
Weight266.1 lbs (120.7 kg)
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