The Klipsch SW-311 ranks #80 out of 145 total Medium Home Subwoofers (30-75 lbs) for sound quality. See all Subwoofers rankings for every top pick.
Brand: Klipsch
Prices on this page were last checked September 14, 2026 at 1:47 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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#80 Klipsch SW-311: $399 eBay
Pros: 10-inch with dual passive radiators and 500W delivers surprising output for compact 13-inch cube. Patented ARC II auto room correction with 12 active filters. Tight clean powerful bass with no distortion at limits.
How it compares: Just above it: WiiM Sub Pro - $80 more. Just below it: Velodyne Acoustics CT-150 - $1600 more.
| Amplifier Power | 500W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 112.4 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 13"H x 13"W x 14"D (330.2 x 330.2 x 355.6 mm) |
| Drivers | 10" (254mm) driver |
| Enclosure | passive radiator |
| Frequency Response | 22-120Hz |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 87.2 dB |
| Output SPL at 25 Hz | 100.9 dB |
| Output SPL at 31.5 Hz | 105.6 dB |
| Output SPL at 40 Hz | 108.3 dB |
| Output SPL at 50 Hz | 111.6 dB |
| Output SPL at 63 Hz | 114.4 dB |
| Output SPL at 80 Hz | 115.2 dB |
| Output SPL at 100 Hz | 114.5 dB |
| Output SPL at 125 Hz | 113.6 dB |
| Warranty | 5/2 |
| Weight | 37 lbs (16.8 kg) |
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- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.