פרטים תכונות מפרט תיאור Pioneer TS-W308D4 12" Dual 4 ohm Champion Series Subwoofer Power Handling: Peak: 1,400 watts RMS: 400 watts Impedance: Dual 4 ohm Seamless Injection Molded Polypropylene (IMPP) composite cone Dual layer, fiber reinforced elastic polymer surround Large spring loaded, push style binding posts High temperature voice coil Large double stacked high energy magnets Designed for sealed, ported, or bandpass enclosures Recommended enclosure volume: Sealed: 1.25 cu. ft Ported: 1.5 cu. ft Bandpass: 0.9 cu. ft in front / 0.9 cu. ft in rear Frequency response: 20-220 Hz Sensitivity: 94 dB