PIONEER (TS-A4103) 4" X 10" - 2-WAY, 120 W MAX POWER, IMPP™ CONE WOOFER, 1-5/8" TWEETER - REAR DECK MOUNT COAXIAL SPEAKERS (PAIR) Getting a little sick and tired of those distortion-prone Stone Age 4"x10" speakers in your ride? Pioneer designed the TS-A4103 2-way speakers as a high-quality replacement for the 4"x10" factory speakers found in many General Motors and Saab vehicles. The crisp, full sound results from the union of an IMPP (Injection Molded Polypropylene) woofer and a 1-5/8" paper cone tweeter. Grilles not included. (Factory grilles are appropriate for most installations.) SPECIFICATIONS: 2-Way 4"x10" speakers (pair) IMPP (Injection Molded Polypropylene) woofer Paper cone tweeter Sensitivity: 91 dB Frequency response: 38-23,000 Hz Recommended power range: 2-35 watts RMS Peak power handling: 120 watts Top-mount depth: 2-9/16"