Short answer: the JTR Speakers Growler (2015). It reaches a 130.2dB CEA-2010-A average from a 12-inch ported driver, edging the Danley DTS10’s 129.6dB from a dual 12-inch tapped horn while costing less and weighing 45 kg (99.2 lbs) against the Danley’s extreme 129 kg (284.4 lbs). The Danley needs an external amplifier; the Growler trades its specialized tapped-horn design for ported room interaction.

Buy the Danley Sound Labs DTS10, since the JTR Speakers Growler (2015) is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Subwoofers rankings.
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Specifications Side By Side
| Danley Sound Labs DTS10 | JTR Speakers Growler (2015) | |
|---|---|---|
| Price | $4,400 Passive | $2,995 Passive, Discontinued |
| Ranked | #14 of 143 in Large Home Subwoofers (Over 75 lbs) | #13 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | tapped horn | ported, front |
| Passive | Yes | Yes |
| Output SPL at 10 Hz | 94.2 dB | - |
| Output SPL at 12.5 Hz | 110.6 dB | - |
| Output SPL at 15 Hz | 119.0 dB | - |
| Output SPL at 20 Hz | 122.5 dB | 92.8 dB |
| Output SPL at 25 Hz | 125.5 dB | 97.2 dB |
| Output SPL at 31.5 Hz | 128.3 dB | 106.6 dB |
| Output SPL at 40 Hz | 125.3 dB | 122.7 dB |
| Output SPL at 50 Hz | 127.3 dB | 130.0 dB |
| Output SPL at 63 Hz | 130.9 dB | 133.6 dB |
| Output SPL at 80 Hz | 135.0 dB | 134.4 dB |
| Output SPL at 100 Hz | 133.0 dB | 135.5 dB |
| Output SPL at 125 Hz | 128.7 dB | 136.0 dB |
| CEA-2010-A Average (40-80Hz) | 129.6 dB | 130.2 dB |
| Dimensions | 44”H x 59.5”W x 16”D (1117.6 x 1511.3 x 406.4 mm) | 22.5”H x 30”W x 20”D (571.5 x 762.0 x 508.0 mm) |
| Weight | 285.1 lbs (129.3 kg) | 100.1 lbs (45.4 kg) |
| Warranty | 5 | 5 years |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Data-bass | Data-bass |
| Drivers | 2x 12” (305mm) driver | 12” (305mm) driver |
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