Pioneer SP-C22 Andrew Jones Home Audio Center Channel Speaker. From speaker designer Andrew Jones comes a collection of speakers that bring professional-quality sound to your living room. This highly-acclaimed speaker delivers on sound, creating an immersive listening experience. The SP-C22 center channel speaker was designed to offer extraordinary performance and remarkable sound quality for music and home theater at an affordable price. FEATURES: Curved-cabinet design reduces standing sound waves inside the cabinet. Twin 4" Woofers and Soft Dome Tweeter. Soft Dome Tweeter. Magnetically Shielded. Frequency Range: 55 Hz-20 kHz.