Features: 18" 80 oz 8 ohm polymer treated cone paper with foam surround suspension, 500 watts, 3" Voice Coil woofer.

• Polymer Treated Cone Paper and Foam Surround
• Large 3" Aluminum Voice Coil
• 80 oz Vented Magnet
• Made in the USA

Specifications-

    Power capacity: 250W/500W RMS/peak
    Frequency response: 20 ~ 2,500 Hz
    Nominal impedance: 8 Ω
    Voice coil diameter: 3"
    Magnet weight: 80 oz.
    Sensitivity: 95 dB W/M
    Fs: 18 Hz
    Re: 6.3 Ω
    Qms: 4.30
    Qes: 0.41
    Qts: 0.38
    Vas: 1389 L
    Mms: 120 g
    BL: 14.40
    Xmax: 3.5 mm

Dimensions -

    Overall Frame Size: 17-31/32" dia.
    Required Cutout: 16-5/8" dia.
    Mounting Depth: 7-3/16"