The MTX cabinet speaker is a sturdy and quality made speaker that is great for many applications. The speaker is rated at 300 Watt peak and 150 Watt RMS made from durable MDF enclosure stainless steel grille aviation grade carpet rugged corner braces 5 way binding posts and 1/4 input jack integrated sure grip and easy carry handles x radial designed horn loaded tweeter high excursion ported woofer configuration and has sensitivity of 92dB. The speaker is wired at 4 ohm impedance and has dimensions of 26-1/16 H 15-3/16 W and 12-3/4 D.