KEF kube 10b Subwoofer Speaker

The KEF Kube 10b is a powerful minus‑size active subwoofer featuring a 10″ driver within a sealed cabinet powered by a 300 W Class‑D amplifier. Its Intelligent Bass Extension (iBX) DSP technology dynamically extends low-frequency output, delivering tight, deep bass down to 24 Hz. With flexible connectivity including line-level, LFE, and speaker-level inputs, plus adjustable phase, crossover, and EQ presets tailored to placement (corner, cabinet, free-standing), it integrates seamlessly into music and home theater systems. Compact yet built for serious audio impact, it’s ideal for both compact living spaces and larger rooms seeking low-end clarity.