ESB 1.6K2X 2 Way Component Speaker with 12dB Tweeter Crossover 90w RMS1. 6K2X 2 Way Speaker System with 12dB Tw. Crossover The 1000 Series was conceived and designed to offer the ESB sound in affordable speakers, without sacrificing quality. The pressed paper cones for the woofers, the large voice coils able to handle high power and the tweeters with a silk dome and neodymium magnet, are just some of the features that make these speakers uncompromising. This year, Harmony returns to the market with a wide range of high