Inspired by Pioneer's history of record-breaking SPL competition, the new P.R.O. series line of speakers is constructed with the street enthusiast in mind. With an emphasis on efficiency and power handling, the P.R.O. series lineup consists of bullet tweeters, mid bass drivers, and a subwoofer that can be mixed and matched to deliver impressive output, without requiring an impressive investment. The TS-M800PRO mid-bass driver delivers the perfect balance of power handling and output to compliment the crisp highs from the bullet tweeters. Anchored by high strength, stamped steel frames, the mid bass drivers feature lightweight blended pulp cones suspended by a corrugated surround and motivated by oversize magnets resulting in copious amounts of sensitivity, excursion, and power handling.