Short answer: the JTR Speakers Growler (2015). It ranks #2 of 7 subwoofers at $2995; the Pro Audio Technology LFC-24sm ranks #4 and costs $10000, so there is not much of a tradeoff to weigh.
What the JTR Speakers Growler (2015) gets right: 12-inch ported driver reaches 130.2dB CEA-2010-A average, nearly matching the class leader for about $1,000 less. The tradeoff: Ported design room interaction, 45 kg size, and $2,995 cost.
Buy the JTR Speakers Growler (2015) if the ranking matters more than the price. Buy the Pro Audio Technology LFC-24sm if the price matters more than the ranking.
Specifications Side By Side
| JTR Speakers Growler (2015) | Pro Audio Technology LFC-24sm | |
|---|---|---|
| Price | $2995 | $10,000 |
| Ranked | #2 of 7 in Large Passive Home Subwoofers (Over 75 lbs) | #4 of 7 in Large Passive Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Passive | Yes | Yes |
| Output SPL at 20 Hz | 92.8 dB | 117.7 dB |
| Output SPL at 25 Hz | 97.2 dB | 125.4 dB |
| Output SPL at 31.5 Hz | 106.6 dB | 127.6 dB |
| Output SPL at 40 Hz | 122.7 dB | 129.4 dB |
| Output SPL at 50 Hz | 130.0 dB | 130.0 dB |
| Output SPL at 63 Hz | 133.6 dB | 129.2 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 | 129.5 dB (avg of 3/4 bands) |
| Dimensions | 22.5"H x 30.0"W x 20.0"D (571.5 x 762.0 x 508.0 mm) | 26.0"H x 60.5"W x 21.0"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 |
| Cabinet Color | - | black |
The Two Speakers In Full
JTR Speakers Growler (2015): $2995
Pros: 12-inch ported driver reaches 130.2dB CEA-2010-A average, nearly matching the class leader for about $1,000 less.
Cons: Ported design room interaction, 45 kg size, and $2,995 cost.
Notes: Looks like “PA sub”
| CEA-2010-A Average (40-80Hz) | 130.2 dB |
|---|---|
| Country | United States |
| Dimensions | 22.5"H x 30.0"W x 20.0"D (571.5 x 762.0 x 508.0 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 20 Hz | 92.8 dB |
| Output SPL at 25 Hz | 97.2 dB |
| Output SPL at 31.5 Hz | 106.6 dB |
| Output SPL at 40 Hz | 122.7 dB |
| Output SPL at 50 Hz | 130.0 dB |
| Output SPL at 63 Hz | 133.6 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 |
| Passive | Yes |
| Weight | 100.1 lbs / 45.4 kg |
- Head-to-Head Comparisons
- Links
Pro Audio Technology LFC-24sm: $10,000
| CEA-2010-A Average (40-80Hz) | 129.5 dB (avg of 3/4 bands) |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 26.0"H x 60.5"W x 21.0"D (660.4 x 1536.7 x 533.4 mm) |
| Drivers | 24" (610mm) driver |
| Enclosure | ported, front |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 117.7 dB |
| Output SPL at 25 Hz | 125.4 dB |
| Output SPL at 31.5 Hz | 127.6 dB |
| Output SPL at 40 Hz | 129.4 dB |
| Output SPL at 50 Hz | 130.0 dB |
| Output SPL at 63 Hz | 129.2 dB |
| Passive | Yes |
| Weight | 266.1 lbs / 120.7 kg |
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.