Optimus 1150 (400-1155) Specifications Faxback Doc. # 7647 Frequency Response:..........................................55-20,000 Hz Power Handling Capacity:........................................100 Watts Sensitivity:........................................91 dB (SPL at 1 W/1M) Nominal Impedance:.................................................8 Ohms Speaker Complement:...................2 x 12-inch High-Compliance Woofers 3-Inch Tweeter Enclosure:..................................Tuned Port/Bass Reflex Design Removable Grille Dimensions:..........................30 1/2 x 14 1/4 x 9 3/4 Inches (HWD) Weight:...........................................................25 lbs. (LB/all-09/20/94)