SVS SB-4000 Subwoofer Colour:Black Ash (UK) has consistently rated Diamond

(UK) has consistently rated Diamond Series very highly and it doesn't get any better than 5 Stars

but with a smaller cabinet

WMA and AAC files from flash drives

with a flat response across all bandwidths without any colouring of the original sound

SVS SB-4000 Subwoofer Colour:Black Ash (UK) has consistently rated DiamondSVS SB 4000 Subwoofer Front Firing 13. 5" Woofer With trickle down technology, the SVS SB 4000 Subwoofer is smart in its operation and devastatingly brutal in its execution. Smaller than its ported siblings this sealed box (SB) model is lighter on its feet but still plumbs the depths all the way down to 19Hz. Bass this tight and badass should be handled with extreme care. Enjoy. A top choice for home theatre and audiophile music systems, the SB 4000