KEF KUBE

An active low-frequency equalizer designed to extend bass response in KEF speaker systems

Overview

The KEF KUBE is an active low-frequency equalizer made to improve the bass of select KEF loudspeakers. It was intended for the KEF Model 107, Model 102, and Model 103/3, and it works directly with those systems to improve low-end accuracy and extension. It is not a standard subwoofer. It is an equalizing amplifier that shapes the low-frequency output to suit the room and the source material.

Specifications

TypeActive equalizer KUBE

Design

The KUBE has two equalization modes. The fixed mode automatically flattens mid- and high-frequency response for maximum efficiency. The variable mode gives you a dial to adjust low-frequency output for room conditions and program sources. With compatible KEF speakers, the KUBE gets low-frequency playback down to 40 Hz or less, well beyond what the speakers manage on their own.

Context

The KUBE was part of KEF's approach of offering system-based solutions for accurate sound reproduction, and it let listeners fine-tune bass response in real listening rooms. Paired with the 107, 102, or 103/3, it gave owners a way to get deeper, more controlled bass without replacing the whole speaker system.

eBay Listings

KEF KUBE vintage audio equipment - eBay listing photo 1
KEF Kube 10b - 10" 300W Powered Subwoofer
$430
KEF KUBE vintage audio equipment - eBay listing photo 2
KEF KUBE-1 -- 8” Powered Subwoofer - 200W built-in Class-D a
$200
KEF KUBE vintage audio equipment - eBay listing photo 3
KEF Kube 10b - 10" 300W Powered Subwoofer (Used) #d
$450
KEF KUBE vintage audio equipment - eBay listing photo 4
KEF KUBE 10 MIE 10" 300w Powered Subwoofer - Black
$750
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