eatmatkiller

hi ! i would like to know wich FI sub would match the better with my amp to get the most out of it... ? I would like to go with 1 12", the enclosure size will fit on my back seat, that's why... so my amplifier is a kenwood KAC-9105D rated at 500 watts RMS x 1 at 4 ohms (900 watts x 1 at 2 ohms) and 1ohm stable, the output regulated at 900 watts... and the last sub i got is a fck'n kenwood excellon who is the top of the line of kenwood and in 1 month i cooked the coils... : ( the sub was a 12" 600 watts rms and 2000 watts peak and is a dual 4 ohms. I am on my way to make a new setup : i would use a deep cycle battery and plugged the amp only on it and the amp to the subwoofer, would it be a good setup ??? i dont want to use a capacitor, am i doing right ??? i would use the specs of FI to make the enclosure... I want to get the most out of my amp with the bass boost that is +18 db's at 40Hz and my headunit is a pioneer premier that can push a lot of bass too ! I f i use a 16v battery, will my amplifier will have more outpout... ??? So please give me HELP !!!

Thank you kirill for your advice ! but i already got one in the dash, it is a 1993 car but came like that from factory and the needle of the voltmeter was going crazy when there was strong bass punches... but the big 3 and a second battery in the trunk relay to it, it will be well... : ) Euh the wire that is already passed from the battery under the hood is a 4ga wire is it enough big like wire to relay the other battery in the trunk or should i passed a bigger wire... ???

thank you manrossdamn, i think that i am going to do that, this is what i was thinking too sharing the power between the 2 batteries, i already have a 4ga wire that starts from the battery under the hood that goes to the trunk... : ) so i put one more bettery in the trunk relayed to the other battery, and will surely do a big 3 too, that would be helpfull ! while running on 2 batteries, my alternator will be working pretty tough all the time to recharge the 2 batteries... but ill work fine, if you told me... My car is 93 pontyiac grand-prix the v6 3.1l the oem alternator is just pushing 105AMP and i dont want to invest something like 5K $ because the age of my car ! thanks i think that i've found my setup... : )

Thank you i appreciate about the time you are taking to help people on this forum... yes i resd about things like doing the big 3 that solve most of the time dimming lights problem... but where i am its quite pretty cold in winter, so for that i'll probably wait until the spring... or if i can do that in a warm place... (garage) There is something that i would like to know if i put a deep cycle battery like optima. kinetik or other ones like that in my trunk that the on ly thing that is plugged on it is my amplifier, and my amp is feeding my sub. The battery in the trunk, no alternator to recharge it, nothing else.... how much time can i expect that my sub will play... ??? cause i got a charger at home, so if i want i put the charger on the battery all the night and the next day its ready to bump again !!! One more thing yeah i still hesitate for the sub between the FI Q or the BL one and would like to know wich one is louder, that is the more bangin !

it is a dual voice coils, a dual 4 ohms and in the box they were wired separately each voice coil to an outpout of the amplifier...

if you have good places to found H.O. alternator or on the net... ??? and how the sub was plugged, the amp i got the KAC-9105D has 2 speakers outpout, so i wire each pair to a voice coil. SO the amplifier should put out 500 Watts rms at 4 ohms so 250 watts rms per outpout and the sub was 300 watts rms per voice coil... ??? and tell me if i am right about the FI subs... : the DDS and the Q is more sound quality related and the BL and BTL is more about SPL... ???

thank you manrossdamn for your advice... yeah the car still run and the alt can maybe fried ??? i think thte oem alternator is a 105/70AMP if i replace it with a 140/80AMP do you think the lights will stop from dimming... ??? cause i checked out the price of an 200/125AMP H.O. alternator... is something like 450$ i dont'think the battery is to replece i think is still good. i think it is just because the alternator is not feeding enough juice to the amplifier... and my last sub was a dual 4 ohms kenwood excellon...

Ok yes i am new into car audio but i can love bass too, maybe a bit too much costing me my last sub... let me tell you something... this is the setup i was using : i passed a 4ga wire from the bettery (under the hood) straight to the trunk of the car where my amp was. I placed at 6 inches from the battery on that same wire a 80AMP fuse to protect from shorts. so the alternator was feeding the battery when the car was running and i wasnt using my stereo when the car was off because it wouldn't restart. Because even when the car was running the interior lights and the headlights were dimming alot. The thing is i don't really want to invest into a H.O. alternator because when the car is scrap you can do nothing else with the alt... The other 4ga wire was the groung of the amp was bolted in the trunk, it is straight on metal no rust or paint chips... that cause sometimes a bad ground... i was using 8ga wire from the outpout of the amp to my enclosure... and another little wire from the head unit to signal the power to the amplifer when to turn on and turn off... and 1 pair of of audio cables from the head unit to the line in of the amplifier...

OK I WILL DISABLE THE FUCKN BASS BOOST ! THANK YOU FOR YOUR ADVICDE... I am a french canadian guy, so its hard to find stuff in french on the subject ! but ill do my best in english. i am going to do some search on the forum... yes maybe a Q 12 would do the job too, but wich one to decide on Q12 or the BL 12 wich difference they have if they are rated the same power... ???

yeah i toughth you were missreading... i dont want to run the battery on the alternator i want to charge it everytime the battery is empty and it is for my car... and yes i am looking a liitle bit more for the BL 12 and i want to know if i bought this one with the flatwind and 4" coils options, can i run this sub with the bass boost or will it cooked like the last one... ??? i want a sub that got bass to hurt real hard, i want to feel it inside of me ! i am a bass head and i like when the sound quality is good, i dont want to be affraid to turn up the volume... HELP ME !!!

hi ! Brandonf and hzd skizzy, thank you for your help so i will maybe just get a ordinary 12V deep cycle battery, to be sure and on my last sub the bass bosst was at the half so thats maybe why, i will turn it off good advice ! I am looking more for the FI bl 12 just to be sure to dont cook the coils... : (

thank you hzd skizzy, but i dont want to run the batt on the car i have a charger at home so that's why i want to use a deep cycle battery, so i can always charged that battery... on the amp specs it says 16v allowable but will it give more outpout... ??? what i want is to have the more bass, the more DB'S. I am not doing spl comp. but i push my sub real hard everyday. I am a Bass head and what i listen to is music with a lot of bass like : Bass MekaniK and a lot of rap / hip-hop music... You think a SSD would be enough it is only 800 watts rms and my amp is 900 watts rms and i already blew a 2000 watts peak and my amp is only 1800 watts peak... ??? Thank you for your help : )