ขายสุดยอดซัฟไฮเอน ROCKFORD รุ่น RFR3112 12นิ้วว๊อยคู่เหล็กหล่อรุ่นใหญ่สภาพสวยมากเหมือนใหม่

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Dual Voice Coils: For increased system flexibility, the woofer has two 4" 2 ohm voice coils. When the voice coils are wired in parallel with each other, the woofer presents a 1 ohm mono load. When the voice coils are wired in series with each other, the woofer presents a 4 ohm mono load. In addition, each coil may be connected to a different amplifier channel and each channel will see a 2 ohm load.
Specifications
Recommended Sealed Box Volume: Rockford Fosgate recommends a 1.0 cu/ft sealed enclosure.
Recommended Ported Box Volume: The ported box volume range recommended by Rockford Fosgate is 1.75 cu/ft to 4.0 cu/ft. Within this range, the ideal size recommended by Rockford Fosgate is 2.0 cu/ft, so this is the enclosure recommended by Crutchfield. One 4" diameter x 10-3/4" long port, tuned at 35Hz, should be used with a 2.0 cu/ft enclosure.
Power Handling: The woofer has two 2 ohm voice coils, and each coil can handle up to 500 watts RMS (1000 watts peak).