This page ranks 7 large passive subwoofers weighing over 75 lbs. Passive subwoofers require a separate amplifier or AV receiver. All subwoofers have computed CEA-2010-A scores and are ranked by them with the best at the top.
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| 1 | WW Speaker Cabinets X21 - B&C 21DS115-4 | $3995 | 131.3 dB | ported, front | <td data-sort="21"">21"</td>115.1 lbs / 52.2 kg | ||
| 2 | JTR Speakers Growler (2015) | $2995 | 130.2 dB | ported, front | <td data-sort="12"">12"</td>100.1 lbs / 45.4 kg | ||
| 3 | Danley Sound Labs DTS10 | $4,400 | 129.6 dB | tapped horn | <td data-sort="2x 12"">2x 12"</td>285.1 lbs / 129.3 kg | ||
| 4 | Pro Audio Technology LFC-24sm | $10,000 | 129.5 dB | ported, front | <td data-sort="24"">24"</td>266.1 lbs / 120.7 kg | ||
| 5 | JBL 4645C | $4999 | 127.3 dB | ported, front | <td data-sort="18"">18"</td>138 lbs / 62.6 kg | ||
| 6 | Chase Home Theater SS18.1 | $2499 | 125.2 dB | sealed | <td data-sort="18"">18"</td>89.9 lbs / 40.8 kg | ||
| 7 | Chase Home Theater VS18.1 | $2699 | 124.5 dB | ported, front | <td data-sort="18"">18"</td>187.4 lbs / 85 kg |
Prices on this page were last checked August 29, 2026 at 8:52 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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#1 WW Speaker Cabinets X21 - B&C 21DS115-4: $3995 eBay
Pros: 21-inch driver in a large ported cabinet delivers 131.3dB CEA-2010-A average, the highest output of any passive subwoofer tested.
Cons: Premium $3,995 price, massive 52 kg cabinet, and ported room gain dependency.
Full WW Speaker Cabinets X21 - B&C 21DS115-4 review and specifications →
| CEA-2010-A Average (40-80Hz) | 131.3 dB |
|---|---|
| Dimensions | 24"H x 32"W x 32"D (609.6 x 812.8 x 812.8 mm) |
| Drivers | 21" (533mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 12.5 Hz | 96.2 dB |
| Output SPL at 15 Hz | 111.9 dB |
| Output SPL at 20 Hz | 121.9 dB |
| Output SPL at 25 Hz | 120.8 dB |
| Output SPL at 31.5 Hz | 122.5 dB |
| Output SPL at 40 Hz | 126.7 dB |
| Output SPL at 50 Hz | 129.2 dB |
| Output SPL at 63 Hz | 132.9 dB |
| Output SPL at 80 Hz | 136.3 dB |
| Output SPL at 100 Hz | 139.0 dB |
| Output SPL at 125 Hz | 140.1 dB |
| Passive | Yes |
| Weight | 115.1 lbs / 52.2 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- WW Speaker Cabinets X21 - B&C 21DS115-4 vs JTR Speakers Growler (2015)
- WW Speaker Cabinets X21 - B&C 21DS115-4 vs Danley Sound Labs DTS10
- WW Speaker Cabinets X21 - B&C 21DS115-4 vs Pro Audio Technology LFC-24sm
- WW Speaker Cabinets X21 - B&C 21DS115-4 vs JBL 4645C
- WW Speaker Cabinets X21 - B&C 21DS115-4 vs Chase Home Theater SS18.1
#2 JTR Speakers Growler (2015): $2995 eBay
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”
Full JTR Speakers Growler (2015) review and specifications →
| CEA-2010-A Average (40-80Hz) | 130.2 dB |
|---|---|
| Country | United States |
| Dimensions | 22.5"H x 30"W x 20"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 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
#3 Danley Sound Labs DTS10: $4,400 eBay
Pros: Dual 12-inch tapped horn design delivers 129.6dB CEA-2010-A average and remains in current production, unlike most of the subwoofers ranked above it.
Cons: Requires external amplifier, extremely heavy at 129 kg, very large cabinet, and specialized tapped-horn design.
Full Danley Sound Labs DTS10 review and specifications →
| CEA-2010-A Average (40-80Hz) | 129.6 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 44"H x 59.5"W x 16"D (1117.6 x 1511.3 x 406.4 mm) |
| Drivers | 2x 12" (305mm) driver |
| Enclosure | tapped horn |
| Measurement Source | Data-bass |
| 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 |
| Output SPL at 25 Hz | 125.5 dB |
| Output SPL at 31.5 Hz | 128.3 dB |
| Output SPL at 40 Hz | 125.3 dB |
| Output SPL at 50 Hz | 127.3 dB |
| Output SPL at 63 Hz | 130.9 dB |
| Output SPL at 80 Hz | 135.0 dB |
| Output SPL at 100 Hz | 133.0 dB |
| Output SPL at 125 Hz | 128.7 dB |
| Passive | Yes |
| Warranty | 5 |
| Weight | 285.1 lbs / 129.3 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
#4 Pro Audio Technology LFC-24sm: $10,000 eBay
Full Pro Audio Technology LFC-24sm review and specifications →
| CEA-2010-A Average (40-80Hz) | 129.5 dB (avg of 3/4 bands) |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 26"H x 60.5"W x 21"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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
#5 JBL 4645C: $4999 eBay
Full JBL 4645C review and specifications →
| CEA-2010-A Average (40-80Hz) | 127.3 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 39.7"H x 26.5"W x 17.7"D (1009.6 x 673.1 x 450.8 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 20 Hz | 98.9 dB |
| Output SPL at 25 Hz | 114.0 dB |
| Output SPL at 31.5 Hz | 118.7 dB |
| Output SPL at 40 Hz | 122.0 dB |
| Output SPL at 50 Hz | 123.7 dB |
| Output SPL at 63 Hz | 129.7 dB |
| Output SPL at 80 Hz | 133.9 dB |
| Output SPL at 100 Hz | 135.1 dB |
| Output SPL at 125 Hz | 135.8 dB |
| Passive | Yes |
| Warranty | 5/3/2 |
| Weight | 138 lbs / 62.6 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
#6 Chase Home Theater SS18.1: $2499 Discontinued eBay
Pros: 18-inch sealed driver delivers 125.2dB CEA-2010-A average from a dedicated cinema-style sealed cabinet.
Cons: Passive design needs external amplification, 41 kg weight, and sealed design room modes. Discontinued.
Full Chase Home Theater SS18.1 review and specifications →
| CEA-2010-A Average (40-80Hz) | 125.2 dB |
|---|---|
| Dimensions | 22"H x 24"W x 22"D (558.8 x 609.6 x 558.8 mm) |
| Discontinued | Yes |
| Drivers | 18" (457mm) driver |
| Enclosure | sealed |
| Measurement Source | Data-bass |
| Output SPL at 12.5 Hz | 92.8 dB |
| Output SPL at 15 Hz | 97.2 dB |
| Output SPL at 20 Hz | 101.3 dB |
| Output SPL at 25 Hz | 106.0 dB |
| Output SPL at 31.5 Hz | 111.6 dB |
| Output SPL at 40 Hz | 118.2 dB |
| Output SPL at 50 Hz | 123.6 dB |
| Output SPL at 63 Hz | 128.1 dB |
| Output SPL at 80 Hz | 130.8 dB |
| Output SPL at 100 Hz | 132.6 dB |
| Output SPL at 125 Hz | 133.7 dB |
| Passive | Yes |
| Weight | 89.9 lbs / 40.8 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
#7 Chase Home Theater VS18.1: $2699 Discontinued eBay
Cons: Discontinued.
Full Chase Home Theater VS18.1 review and specifications →
| CEA-2010-A Average (40-80Hz) | 124.5 dB |
|---|---|
| Dimensions | 22"H x 40"W x 22"D (558.8 x 1016.0 x 558.8 mm) |
| Discontinued | Yes |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 15 Hz | 104.4 dB |
| Output SPL at 20 Hz | 114.1 dB |
| Output SPL at 25 Hz | 116.9 dB |
| Output SPL at 31.5 Hz | 119.1 dB |
| Output SPL at 40 Hz | 122.2 dB |
| Output SPL at 50 Hz | 124.8 dB |
| Output SPL at 63 Hz | 124.5 dB |
| Output SPL at 80 Hz | 126.5 dB |
| Output SPL at 100 Hz | 130.4 dB |
| Output SPL at 125 Hz | 131.6 dB |
| Passive | Yes |
| Weight | 187.4 lbs / 85 kg |
- Reviews, Comparisons and Sound Samples