Free air car subwoofers
prices on 3 modelsFree air
— autosubwoofers, suggesting the complete absence of their own enclosure. The classic option for installing them is to install them in the rear shelf or back of the rear seat so that the boot is used as the body. This installation saves a lot of space, but selection and installation are difficult, Free Air models are not well suited to body types other than sedans, and sound performance may deteriorate as the boot is loaded.