Infinity Reference REF407F 4" Coaxial Speakers An included wired remote bass

An included wired remote bass level control for Mono and 5 channel that can be mounted for convenient volume adjustment from driver seat

57 lbs Dimensions 15

Round Shape PP Vacuum Dust Cap

along with adapters that allow for surface- or flush-mounting

Input Impedance: 20kΩ

Infinity Reference REF407F 4" Coaxial Speakers An included wired remote bassA modern classic Just as they were throughout my 16 years as a Crutchfield Advisor, Infinity's Reference Series speakers remain a popular choice for upgrading from factory speakers. The REF407F 4" 2 way car speakers follow that Infinity heritage by offering the killer combo of high efficiency and superb sound. These Infinity speakers offer larger magnets than most factory speakers for bigger, better sound. Infinity's famous ingredients Reference