Hemmabio (Sweden) Reviews the PB-4000 Subwoofer
"Massive, powerful, controlled, forceful, extremely deep, detailed, nuanced, it’s a lot of words in my book and they’re all positive. An extremely competent subwoofer from start to finish for all occasions. Whether you need to integrate with bookshelf speakers, in-wall speakers, or big floorstanders, the PB-4000 will support them in a fantastic way."