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Get PRE-QUALIFIED for 0% FINANCING for 12 MONTHS!
Get PRE-QUALIFIED for 0% FINANCING for 12 MONTHS!

Kef Kube 8b Powered Subwoofer

by KEF
Original price $599.99 - Original price $599.99
Original price
$599.99
$599.99 - $599.99
Current price $599.99

Call 410-882-4360 to Order!

Solid bass with a compact footprint

KEF knows how important great bass is when you're listening to tunes or watching a movie. They've designed the KUBE 8b powered subwoofer to provide excellent low-end performance without taking up a lot of space on your floor. This compact sub is an excellent choice for small- to medium-sized rooms where space is at a premium.

Intelligently designed components

The KUBE 8b is outfitted with a custom-designed 8" woofer, and a powerful 300-watt RMS amplifier. KEF designs and builds all of their components in-house to make sure that both the quality and audio performance are up to the company's high standards. 

Built-in sound controls

On the back panel you'll find a simple-but-useful input and control panel. My favorite feature? You can choose from three placement presets (free-standing, in-cabinet, or corner) to dial in the sound based on where the sub is located in your room.

Get the most out of your new sub

Once you get your sub home, check out our tips for placement and setup. Free lifetime Virginia-based tech support is included with your purchase.


Product highlights:

  • frequency response: 34-140 Hz (-6 dB)
  • built-in Class D amplifier delivers 300 watts RMS of continuous power
  • custom-designed 8" woofer
  • acoustic suspension (sealed) cabinet design
  • iBX (Intelligent Bass Extension) digital signal processing provides deep, dynamic bass at any listening level
  • 3 placement presets (free standing, in-cabinet, or corner) let you choose your sub's location for optimal bass performance
  • variable low-pass crossover (40-140 Hz)
  • phase control switch (0-180°)
  • line-level/LFE RCA inputs
  • main power on/off switch plus auto standby/on mode
  • detachable power cord
  • 11-1/2"W x 11-1/2"H x 12-1/4"D
  • weight: 25 lbs.
  • warranty: 5 years woofer, 2 years amplifier