The Klipsch SW-311 ranks #59 out of 137 total Medium Powered Home Subwoofers (30–75 lbs) for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#59 Klipsch SW-311: $399
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: OSD (Optimal Speaker Design) TreVoce 12 DSP - $200 more. Just below it: Velodyne Acoustics CT-150 - $1600 more.
| CEA-2010-A Average (40-80Hz) | 112.4 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 13.0"H x 13.0"W x 14.0"D (330.2 x 330.2 x 355.6 mm) |
| Driver | 10" (254mm) driver |
| Driver(s) | (1) 10 inch |
| 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 |
| Power Output (Watts) | 500W RMS |
| Warranty | 5/2 |
| Weight | 37 lbs / 16.8 kg |
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Product prices and availability were last checked July 28, 2026 at 2:23 PM UTC 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.