Home › Owner Reviews › Mark O. Reviews the SB-2000 Mark O. Reviews the SB-2000 Posted by Ryan Alfredo on August 02, 2019 "… a resounding two thumbs up and are easily one of the smartest audio investments I have ever made."- Mark O. 2000-series, 2000-series-dual-subwoofers, all-products, all-subwoofers, dual-subwoofers, dual-subwoofers-sealed, sb-2000, sealed-subwoofers icons/instagram Created with Sketch. Share Share on Facebook Tweet Tweet on Twitter icons/pinterest Created with Sketch. Pin it Pin on Pinterest