Short answer: the Pro Audio Technology LFC-24sm. It ranks #4 of 143 subwoofers by sound quality (rated 4.6/5) at $10,000 and is still sold new; the JTR Speakers Growler (2015) ranks #13 (rated 4.5/5) and is discontinued, so it is only an option used.
Buy the Pro Audio Technology LFC-24sm. It is rated higher for sound quality and still sold new, while the JTR Speakers Growler (2015) is discontinued.
Looking for alternatives? See the complete Subwoofers rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| JTR Speakers Growler (2015) | Pro Audio Technology LFC-24sm | |
|---|---|---|
| Price | $2,995 Passive, Discontinued | $10,000 Passive |
| Ranked | #13 of 143 in Large Home Subwoofers (Over 75 lbs) | #4 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Passive | Yes | Yes |
| Output SPL at 20 Hz | 92.8 dB | 123.7 dB |
| Output SPL at 25 Hz | 97.2 dB | 131.4 dB |
| Output SPL at 31.5 Hz | 106.6 dB | 133.6 dB |
| Output SPL at 40 Hz | 122.7 dB | 135.4 dB |
| Output SPL at 50 Hz | 130.0 dB | 136.0 dB |
| Output SPL at 63 Hz | 133.6 dB | 135.2 dB |
| Output SPL at 80 Hz | 134.4 dB | - |
| Output SPL at 100 Hz | 135.5 dB | - |
| Output SPL at 125 Hz | 136.0 dB | - |
| CEA-2010-A Average (40-80Hz) | 130.2 dB | 135.5 dB (avg of 3/4 bands) |
| Dimensions | 22.5”H x 30”W x 20”D (571.5 x 762.0 x 508.0 mm) | 26”H x 60.5”W x 21”D (660.4 x 1536.7 x 533.4 mm) |
| Country | United States | United States |
| Measurement Source | Data-bass | Brent Butterworth |
| Weight | 100.1 lbs (45.4 kg) | 266.1 lbs (120.7 kg) |
| Drivers | 12” (305mm) driver | 24” (610mm) driver |
| Warranty | 5 years | - |
| Cabinet Color | - | black |
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