KEF HTS7001GB Satellite Speakers These new satellites are only 7.7" x 3" x 2.4", weighing a little over one pound, but they provide sound equivalent of speakers three times their size. Add these speakers to your current KHT1505 system, KHT7005 or KHT8005 system to give yourself a 7.1 surround setup! Each satellite speaker contains a 19mm tweeter and two 2" low-frequency drivers which ensure captivating reproduction of sounds ranging from soaring violins, to pop diva solos, to thunderous booms.