JVC CS-V6948, 4-way, 400 W, 4 Ω, 35 - 25000 Hz, Ferrite, 3.09" (7.85 cm) JVC CS-V6948. Speaker type: 4-way, Peak power: 400 W, Impedance: 4 Ω. Mounting depth: 3.09" (7.85 cm), Weight: 3.15 lbs (1.43 kg), Tweeter diameter: 0.984" (2.5 cm). Woofer magnet type: Ferrite, Sound pressure level (max): 88 dB