The GH28L is a pair of 2 way passive loudspeakers built from dual 8 Inch High Output Mid/Low Ribbed Cone Woofers and a 1 Inch High Temp Multi Layer Copper Voice Coil mounted on a Wide Dispersion High Frequency 1 Inch Horn Tweeter for the highest quality sound. These components are housed in computer engineered MDF Acoustic Enclosure to get the most out of your speaker. The low end is enhanced by a Tuned Bass Reflex Enclosure to maximize the boom. The covering is rugged Aviation Grade Carpet to help prevent tears and stains. A steel mesh screen is installed to prevent damage to the speaker and horn. The GH28L is rated at 450 Watts RMS and 900 Watts Peak to get maximum volume from this cabinet. It is wired at 4 ohms. The Grindhouse brand of Pro Audio gear is an affordable alternative to high priced audio gear. Do not be fooled by the price! Low prices do not always translate to a cheap product. Grindhouse Speakers are high quality product and produce a superb sound. Give them a shot and you will be happy you did.