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heey guys i have a Fibl 18un wiht cooling dual 10hm to a jbl gto1200 amp going at 1200watts rms. so orginally i set the gain by ear and had it at little less then 3/4s of the way. Then i set it using the voltmeter and play a 50hz tone with my radio volume 3/4 and i set it to 47 My math for it was 1200X2 then take square root u'd get around 49. but when i did that and played bass i love you at about little less then 3/4 it was barely flexing before it was just dancing adn it not as loud and it sounded like there was more stress on the sub. Got any advice?

alright thx im mostly going to listen to rap music, thx for the info on bout normalize the song and i will justset the gain about 3/4 and just listen and turn if needed thx for info!

im sry newb here what do you mean by normalize do you mean howdo i set the EQ in my radio?

no i set it on red to positive black to negative on AC think i should just set it by ear? and whats best song or tone to play then should it be the 50hx tone again and i just wat till i hear stress?

ive played it a few times not super loud but its had enough time and it was on AC

hey guys u have a fi bl 18in dual 1 ohm going to a 1200gto jbl amp at 1200watts rms at 2ohm. i want to make sure that i had this right when i go to set my gains. So i put the 50hz tone. The math is 1200X2(rmsXimdependance) then take the square root of that so i should get 48.98 so when i go to set my gains and i use the volt metter i should set it until i get to 48.98. im pretty sure thats how you do it but just wanna double check dont wanna blow my sub im goin to post pics soon the box for it is amazing custom paint by friend

hey guys i have 18in fi BL dual 1ohm being powed by JBl gto 1200 amp and just wanted to make sure i get a speaker wire that will allow enough flow of power and still fit. any help i'd appreciate it.

hey guys ill be running a Jbl 1200.1 watt amp at 1117 watts rms at 2ohm on a fi bl 18in do i need to get a new altenator to power that amp or will i just be fine with a capcitor ill be running this while the car is on. i hope i just can use a capacitor cause my money budget is low

hey my jbl 1200 amp doesnt have a subsonic filter and im going to run a fi bl 18in in a ported box at 32 herts anybody know where i can buy a subsonic filter? and also what to set it at

oh ok sryy bout that

????? how do u know a 18in wont work?? shizzon is building me a box. how u gett on the subject of a 18in wont fit in my trunk?

thx man final question can u suggest good site to buy the battery

no that will be the only amp i will use what kind of wire should i use for the battery 8 gauge 4 gauge 0 gauge?

Dont get a capacitor, just get you a nice size secondary battery and you will be ok. What car and what size stock alternator do you have, the will really help us answer your question accurately? its 1989 ford probe sedan with new battery and 70amp altenator

hey so I bought Bl 18in dual 1ohm. Im using the Re calculator for a L port, but im seeing there are many variable s that i have to account for so if you guys can help me understand what to do. Its going to be tuned at 32 hertz So how much port area should i have? My demnsions are 37W by 20H by 15 D. How much box voulme should i have? And where should i mount the subwoofer can i have it on the same side as where the vent will be? how far from the vent should it be? This is the first time i have ever done somthing like this so i dont know all the terms and what they mean so if you could plz explain it. thx!

well im using a jbl gto1200 which sends 1117 watts rms at 2 ohms. i have a 1989 ford probe hatchback. i'd like to have the sub and the vent facing up. here is a picture of waht my trunck looks like that was the old setup. So yea if someone can help me build the box like the demnsions and all that i'd really appreciate it! also how do i contact Shizzon.?

hey guys so this will be my first box build. I have 18in fibl dual 1ohm with a jbl gto 1200.1 watts 1114 watts rms at 2ohm. my max demsions are 37L by 20W by 15 Depth. Im using Re enclourse calculater. But i want to know whats a good port area size and port width and any other factors that i should be looking for liiek what it should be tuned at. I want it to sound loud, hit lows, and have good air flow. If you guys could help id appreciate it

im gonna listen to rap music for those bass hits

Hey so i recently ordered an Fi BL 18in dual 2ohm. And i made a huge mistake. I treid to contact Fi at orders@fiaudio.com to see if theres anychance for them if they hadnt start building the subwoofer if they can change it from dual 2ohm to dual 1 ohm. if any of the Fi car audio workers see this plz help to see if i can get that changed

k Thx i sent the information with my info

I bought a Jbl GTO 1200.1 787wattsrms at 4ohms and 1114 watts rms at 2ohms