The Funk Audio Ultra 21.0LX ranks #14 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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#14 Funk Audio Ultra 21.0LX: $9,487.26 eBay
How it compares: Just above it: Monoprice Monolith 16 THX Ultra - $7187 cheaper. Just below it: JTR Speakers Captivator 2400 - $5987 cheaper.
| CEA-2010-A Average (40-80Hz) | 126.3 dB |
|---|---|
| Cabinet Color | wood, custom |
| Country | Canada |
| Dimensions | 25.5"H x 24.5"W x 24"D (647.7 x 622.3 x 609.6 mm) |
| Drivers | 21" (533mm) driver |
| Enclosure | sealed |
| Measurement Source | Manufacturer |
| Output SPL at 10 Hz | 99.9 dB |
| Output SPL at 12.5 Hz | 102.3 dB |
| Output SPL at 15 Hz | 108.4 dB |
| Output SPL at 20 Hz | 116.6 dB |
| Output SPL at 25 Hz | 120.5 dB |
| Output SPL at 31.5 Hz | 121.2 dB |
| Output SPL at 40 Hz | 125.0 dB |
| Output SPL at 50 Hz | 127.2 dB |
| Output SPL at 63 Hz | 126.5 dB |
| Output SPL at 80 Hz | 126.6 dB |
| Output SPL at 100 Hz | 127.6 dB |
| Warranty | 3 |
| Weight | 145.1 lbs / 65.8 kg |
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