The Funk Audio Custom 21.0 ranks #10 out of 97 total Large Powered Home Subwoofers (Over 75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
Brand: Funk Audio
Prices on this page were last checked September 4, 2026 at 6:09 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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#10 Funk Audio Custom 21.0: $6,061.91 eBay
Notes: Data-bass labeled this sub as ‘FW21.0’, but original name is 21.0
How it compares: Just above it: Funk Audio Ultra 24.0 - $3699 more. Just below it: Funk Audio Classic 18.0 - $1169 cheaper.
| CEA-2010-A Average (40-80Hz) | 127.7 dB |
|---|---|
| Cabinet Color | wood, custom |
| Country | Canada |
| Dimensions | 22.8"H x 22.2"W x 20.5"D (577.9 x 565.1 x 520.7 mm) |
| Drivers | 21" (533mm) driver |
| Enclosure | sealed |
| Measurement Source | Data-bass |
| Output SPL at 10 Hz | 97.4 dB |
| Output SPL at 12.5 Hz | 101.1 dB |
| Output SPL at 15 Hz | 105.7 dB |
| Output SPL at 20 Hz | 109.8 dB |
| Output SPL at 25 Hz | 114.2 dB |
| Output SPL at 31.5 Hz | 120.4 dB |
| Output SPL at 40 Hz | 124.1 dB |
| Output SPL at 50 Hz | 126.8 dB |
| Output SPL at 63 Hz | 129.0 dB |
| Output SPL at 80 Hz | 131.0 dB |
| Output SPL at 100 Hz | 132.6 dB |
| Output SPL at 125 Hz | 133.0 dB |
| Warranty | 3 |
| Weight | 145.1 lbs / 65.8 kg |
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