The Kef Kube 10B ranks #110 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.
#110 Kef Kube 10B: $800
Pros: Sealed 10-inch with 300W RMS and KEF iBX intelligent bass extension algorithm. Three preset EQ options plus smart compression limiting for dynamic playback. Confidence recommended for small to medium rooms.
Cons: Discontinued.
How it compares: Just above it: Genelec HTS3B - $1195 more. Just below it: BK Electronics XLS300/PR - $7195 more.
| CEA-2010-A Average (40-80Hz) | 108.0 dB |
|---|---|
| Cabinet Color | black |
| Country | United Kingdom |
| Dimensions | 14.6"H x 13.9"W x 14.6"D (370.8 x 353.1 x 370.8 mm) |
| Discontinued | Yes |
| Driver | 10" (254mm) driver |
| Driver(s) | (1) 10 inch |
| Enclosure | sealed |
| Frequency Response | 24-140Hz |
| Measurement Source | Brent Butterworth |
| Output SPL at 15 Hz | 86.3 dB |
| Output SPL at 20 Hz | 93.4 dB |
| Output SPL at 25 Hz | 93.5 dB |
| Output SPL at 31.5 Hz | 100.7 dB |
| Output SPL at 40 Hz | 103.9 dB |
| Output SPL at 50 Hz | 107.1 dB |
| Output SPL at 63 Hz | 109.9 dB |
| Output SPL at 80 Hz | 111.1 dB |
| Power Output (Watts) | 300W RMS |
| Warranty | 5/2/5 |
| Weight | 38.4 lbs / 17.4 kg |
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Product prices and availability were last checked July 31, 2026 at 5:30 AM 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.