

KEF – Kube 8in. 300W Powered Subwoofer – Black
Your Lease Ownership Plan
est. $31.00 /week*
805
Get it now and rent as you go. The item is yours after renting for 12 months or buyout early anytime. No down payment, no commitment and return/cancel anytime.
Rental Payment / 2 weeks: est. $62.00*
All lease payments apply to the ownership cost.
Ownership Options & Cost (before tax)
100-Day Price: $805.00*
Lease-to-Own: 26 bi-weekly payments over 12 months.
Early Buyout Price: After 100 days, buyout with a one-time payment of 50% of your remaining ownership balance.

DELIVER TO YOUR DOOR OR IN-STORE PICKUP*

LEASE TO OWN WITH NO CREDIT NEEDED*
- Details
- Additional Information
- Q & A
- Specifications
Description
Provide thumping bass for an entertainment center with this KEF subwoofer. Its 8-inch driver delivers dynamic low frequencies, and its phase selection and three DSP-controlled EQ settings help match it to the room size for sound that’s immersive and detailed. This KEF subwoofer has a built-in amplifier for producing audio that’s well-matched to the driver for minimal distortion.
8″ active subwoofer
Ensures robust bass with low distortion.
300W Class-D amplifier with DSP preamplifier/EQ
Delivers immersive music and home theater sounds that drive you deeper into the heart of the performance.
Intelligent Bass Extension (iBX) algorithm
Creates an extended depth that unlocks the full potential of the custom driver.
KEF smartConnect intelligent inputs
Automatically detect mono or stereo and adjust the subwoofer volume level accordingly.
Placement tuning presets
Include freestanding, wall/in-cabinet, and corner, which means this Kube subwoofer sounds perfect wherever it’s installed.
Sealed enclosure
Provides greater accuracy and delicate musical detail while allowing Kube to be installed in a cabinet.
LFE (RCA), line-in (RCA) and speaker-level inputs (Phoenix-type terminal)
Ensure a secure connection.
34 – 140Hz (±3dB) frequency response
Delivers booming lows for an immersive soundscape.
Manufacturer | Other Brands |
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Specification |
Wireless Multi-Room Audio No App-Controlled No Amplifier Class D Product Depth 17 inches Remote Control Included No Wi-Fi Built-in No Color Category Black High-Pass Crossover None Maximum Frequency Response 0.14 kilohertz Manufacturer’s Warranty – Labor 2 Years Controls Cut frequency Enclosed Yes Enclosure Type Sealed Low-Pass Crossover Variable Manufacturer’s Warranty – Parts 2 Years Wireless No Product Weight 25 pounds Input(s) Speaker Integrated Amplifier Yes Model Number KUBE8B Woofer Size 8 inches Speaker Type Floorstanding Color Black Minimum Frequency Response 34 hertz Product Height 16 inches Indoor Or Outdoor Use Indoor Product Name Kube 8″ 300W Powered Subwoofer Brand KEF Subwoofer Type Powered Cable(s) Included None RMS Power 300 watts Product Width 15 inches |
Customer Rating | 5.0 |
Customer Rating | 4.9 |