Memphis EQL7 7-Band Half-DIN Graphic Equalizer Audiobank The REF407F uses a polypropylene

The REF407F uses a polypropylene Plus One woofer cone with a hi-roll rubber surround

Neodymium Magnet: Supports a compact tweeter motor assembly

Wired Bass-Level Remote: Lets you adjust subwoofer output from the cabin

1 uses a black chassis with a mass-loaded extruded aluminum heat sink for thermal management

Memphis EQL7 7-Band Half-DIN Graphic Equalizer Audiobank The REF407F uses a polypropyleneThe Memphis EQL7 is a half DIN, 7 band graphic equalizer and preamp designed to give a car audio system more direct tonal and level control. It fits between a source unit and amplifiers to help correct for vehicle acoustics, speaker placement, or personal listening preferences. This used, very good condition unit is suited to systems that use RCA level signal connections. Its seven EQ controls cover bass, midrange, and treble frequencies from 50Hz