KEF R400b Active Subwoofer (Active Subwoofer, 26-140 Hz, 22.5 cm, 9 Inches, White, AC) : Amazon.co.uk: Electronics & Photo
Used KEF R400b Subwoofers for Sale | HifiShark.com
The compact and powerful R400b packs real punch | KEF International
Sybwoofer KEF R400B - test - testy, ceny i sklepy | AUDIO
KEF Subwoofer R400B ausgepackt - YouTube
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Amazon.com: Customer reviews: KEF R400GB R400b Front Firing Powerful Subwoofer - High Gloss Piano Black (Single)