Where is your Kicker S8L5 mounted? what kind of box?
I just finished my system... My speakers sound amazing and the bass is good, i just need to do a bit more tweaking or perhaps add a multiband eq to clean up the crossover points.
Here's what I have:
Alpine IVA-D300 Touch screen double DIN monitor/head unit
Alpine TME-580 6.5" screen installed in the passenger visor
Pioneer 6.5" overhead monitor for the rear passengers
MTX MXA6004 4-channel Amplier
MTX MXA8001 Mono Block Sub Amplifier
Infinity Perfect 6.1 6.5" Component Speakers in front doors
Infinity Kappa 6x8" Coaxial Speakers in rear doors
Kicker Solobaric S8L7 2Ohms DVC - 2 of them loaded in a custom down firing box under the rear seats
Rockford Fosgate 1 Farad Capacitor w/digital monitor
I am using 1-0 AWG power cable fused in 3 places and distributed into 4 AWG.
The WHOLE interior is covered in B-Quiet Xtreme Sound Deadener Material.. I covered every inch of the doors, floor, backwall and roof.
The sound levels and quality are amazing.. There is absolutely no road noise from my knobby tires anymore and my usual listening volume level on the deck used to be 18/35 on the volume dial and now it is down to 12/35 after the sound dampener install... and i even lowered my gains.
My first impression of the Kicker S8L7's is that they are LOUD! Just as advertised... but I do have to say the sound quality compared to my JL Audio subs doesn't come close.. the JL's are smooth.. but then again the box I made for the JL's was perfect in every way.. Jason... You're gonna love it once you get the box, subs and amp! The Kickers i have are loud.. but the JL's are smooth, accurate and hit deep.