Abstract: A low-profile loudspeaker has a speaker motor assembly with a yoke including a central column. One or more magnets are radially disposed around the central column. A top plate is mounted in an axially centered relation to an arrangement of the one or more magnets and the central column. Inner circumferences of the top plate and the one or more magnets and an outer circumference of the central column of the yok define an air gap. One or more axial spiders are mounted to an interior of the central column, with a circumference of the air gap being larger than an outer circumference of the one or more axial spiders.

Abstract: A multiple wired input/output device provides generated battery or regulated voltage outputs with adjustable turn-on and turn-off timing with sequence priority to engine running status. Separate aftermarket audio components, or a combination of aftermarket audio and non-audio related components are activated and deactivated in appropriate order for a variety of installation applications. One or more switched battery voltage inputs override the sequence priority of generated battery or regulated voltage output(s) in relation to engine running status, order or duration.