The EOS is an active 4-way design with a nominal impedance of 8 ohms for High, Mid and the Low frequency sections. Featuring 2 x 12” Neodymium woofers in a tuned enclosure and 4 x 6.5”neodymium mid-range drivers combined with 2 x 6.5” coaxial planar wave guides. This cabinet gives a usable frequency response of 46 Hz to 21.2 kHz (-10 dB) and an SPL of 147 dB per cabinet.