154.4db Build From The UK 2 Btl Neo 2 18s

Well i am Liam from England been into car audio for 4 years now i have had the car from standard to what it looks like today all work has been done/paid for by me. The main aim for the car was a streetbasser that competes in propper droppers which is a format over here that tests how flat your system plays between 20Hz and 40Hz they test the system with the termlab on the passenger headrest and a window or door open, they test 20,25,33,40Hz and your peak then you get an average i am currently the loudest system in walled under 6,000rms.  

I have had 4 walled systems in the car over the last 2 years. 6 12s flat wall, 8 budget 12s ported tunnel then replaced the budget subs with some better subs and now i have the 18s. Current aim for the car is to keep my title on propper droppers and to make a low powered 149.9 bass racer

sounds system:

pioneer deh-p7100btaudiocontrol epicenter 10x JBL: GTO-837 8" coaxial speakers2x Genesis Profile 44x JBL: GTO-1201.1 Mono Amplifier (4,400rms total)2x fi btl neo 2 18s with smd baskets fully loaded2x XS power D3100250amp @ 14.1 alternator20m of 0gauge power cable 50m of speaker cable20m 4gauge power cable17cu:ft box made out of mdf, birch and steel sealed in with 10 cans of expanding foam 1" mdf roof with 3" of expanding foam topped with a 1mm steel sheet to cover sunroof 60 sq:ft of 2mm ivanhoe (roof, rear bench/boot floor, doors(inner and outer skin), rear quaters) 20 sq:ft of 4mm Silent Coat Extra Door Kit (foot wells and wheel wells)

Mods to the car:

custom center console for phone and gaugecustom door builds15" white alloyswide mouth grilllowered 100mm front (coilovers) 100mm+ back4-2-1 manifoldcarbon fiber vinyl rooffull vt kit fitted and colour codedfogs and front toeing eye smoothed and grill widenedside badges smoothed in front grills black meshedrelocated immobiliser keypadcustom built keyles/fobles entry system

upgrade from standard 80amp alternator to a 250amp one  Sunroof removed:Door build: The subs:Build progress: was a rush job to get the 18s in and playinghairtricksstill got lots of things todo things todo next is flares and then im looking at upping the power time for some numbers

these number where the day after a weekend show where i had been playing with engine off so batteries where flat. did a 151.2 @ 41hz dB drag style

31hz tunningTotal average 152.5dBpeak 154.4 @ 33hz40hz 152.533hz 154.425hz 153.520hz 147.7

with blockers 27hz tunning

Total average 152.6dBpeak 154 @ 33hz40hz 151.933hz 154 25hz 153.520hz 149.8

Score from my old systems

ported tunnel tuned to 27hz with the 8 jbl gt5 12s did 150.1db @ 31hz dB drag style and the propper dropper scores where

total average = 152.1   peak 153.5 @ 32hz40=151.5             33=152.625=153 20=149.9 then upgraded to the Ground Zero RW12-AL's did 148.6 @ 31hz db drag style and the propper droppers scores where Total average 151.4peak  153 peak @ 27hz 40hz 151.2 33hz 152.5 25hz 151.7 20hz 148.7

even thou ground zeros had better xmax more power handling and more of a solid cone the scores where down but to the ear it sounded alot smoother and cleaner

pictures of the ground zeros

I love it! Car is sick. Great stuff.2013 Kia Rio -90a alternator

DDX470HD GTO14001 GTO1014D (x3)

Big3 in 1/0G

1/0G to GTO14001

I like how the batery is almost as big as the engine LOL!!!Dodge Magnum in progress:

Pioneer DEH-80PRS - PPI Amps - Dayton Subwoofer(s) - Exodus Anarchy's - Vifa Tweeters - Kinetik Battery