not sure what speakers they used but could of used much better amps then those alpine. I did same thing to my truck all in $10K plus phoenix unit
did not do the whole floor but doors and back is a must for sound quality of speakers and yes cuts down on road noise floor is little over kill
I did rear 12 shallow mounts perfer to keep space under the rear seat vs speakers and the JL 12 shallows still thump was very surprised how great they sound with such little space for a box enclosure
so much has changed since back in they day when we used to build "systems"
with DSP amp technology I tuned the whole set up on my lab top and can change to 4 tunes with turn of the bass knob which also doubles as tune knob and can adjust the level of mids and highs with the knob also
could easy spend 10hrs plus on lab top tuning every speaker, the driver side is time delayed so the sound hits drivers seat same time from left and right feels like you sitting in the middle of the truck and yes it sounds very different then when set to zero delay.
each amps has its own tune but the subs which are on the rear amp has a pass through to the front amp so subs are tuned on front amp rear speakers are tuned direct connection to rear amp
i turned the center speaker off as i think it sounds better without it
did not do the whole floor but doors and back is a must for sound quality of speakers and yes cuts down on road noise floor is little over kill
I did rear 12 shallow mounts perfer to keep space under the rear seat vs speakers and the JL 12 shallows still thump was very surprised how great they sound with such little space for a box enclosure
so much has changed since back in they day when we used to build "systems"
with DSP amp technology I tuned the whole set up on my lab top and can change to 4 tunes with turn of the bass knob which also doubles as tune knob and can adjust the level of mids and highs with the knob also
could easy spend 10hrs plus on lab top tuning every speaker, the driver side is time delayed so the sound hits drivers seat same time from left and right feels like you sitting in the middle of the truck and yes it sounds very different then when set to zero delay.
each amps has its own tune but the subs which are on the rear amp has a pass through to the front amp so subs are tuned on front amp rear speakers are tuned direct connection to rear amp
i turned the center speaker off as i think it sounds better without it