Speakercraft Profile AIM8 Five In ceiling Speaker each high end speakers First D26 Break Up mode: First D26 Break Up mode: 44 The poles are the connection between the floor base and display interface and are available in 3 different lenghts General Family Profile AIM Woofer Size 8 (Inches) Woofer Construction Pivoting and Rotating 8″ Kevlar Cone Woofer Tweeter Pivoting 1″ Aluminum Magnesium Dome Tweeter Frequency Response 33Hz – 20kHz Impedance 8 (Ohms) Power Handling 150 (Watts) Sensitivity 91 (dB) Timbre Timbre Matched to All Five Series Speakers Switches Front Mounted Switches Allow for up to ±3dB of Bass and Treble Adjustment Dimensions 11 1 16″ x 5 3 4″ (291 mm x 146 mm) (with Grille) Hole Cutout Dimensions 9 3 4″ (248 mm) Shipping Info Length 12 No longer are you bound by the design of your room