front doors ; rockford fosgate P16s
subwoofers : Rockford fosgate 10" shallow mounts
amplifier : rockford PBR300x4
cable hardware
sound deadening
subwoofer level control
total £1100
job involves designing and building the sub woofer enclosures, sound deadening the front doors inner skin and outer skin, make speaker adaptor rings, run all the cables under the carpets etc.
would take 3 days to build.
we have changed the amplifier to the newer 2018 model.