Pioneer's goal is to build speakers that accurately cover the whole frequency spectrum highs, mids, and lows. The TS-A1370R 3-way 5-1/4" speakers start with 3/8" PET silver film dome tweeters and 1-5/8" pearl polycarbon midranges for stellar coverage of the highs and mids.
The Aramid fiber-reinforced IMPP (Injection Molded Polypropylene) woofers have excellent low-frequency response for strong, gutsy bass. Tough butyl rubber surrounds contribute to long life. Grilles are included.