Audio experts needed please....

[AnthonyF]

Well, lets start off with my setup. I am running the factory head unit, I have one of those little boxes from circuit city so I can wire up a sub/amp, I have a kenwood 1000w amp and 2 L7 Kickers. I have wired them up in many different variations. But I still get the same problem. Now It is being more common. The subs will hit very hard then dim down and stay that way for awhile. Every now and then it'll go back to normal and pound once or twice, then fade away. :thinking: It used to only happen when I pushed them very hard, but now it is all the time. Any ideas? I really appreciate the help.

-Ant.

[Nitro]

hit Kevin up....... expert at *Platinum Audio* 770-596-0452 tell him u my homieeeeeeee :D

[X-Runner]

Clear you PMs man. I can help you fix this also.

[blackboi50]

sounds like voice coil issues!!!!!.......hope u arent hearing words through your speakers!!!!! :(:(........1

[AnthonyF]

No words though the speakers. I wired the subs up in a series yesterday which prob made it worse. But when I had the amp wired up for the 2 channel option and the subs wired up normally, I pulled out one of the male RCA connectors and the **** POUNDED harder than ever. I dunno why....I hate audio. I never understand it.

-Ant.

[blackboi50]

hahahahhha i know what your problem is!!!!!!! :lmfao:...........haaaahhahhaa.......did u clear your pm's????

Fack it!!!!! ill tell u :D

seems like u have the wires reversed on the back of the speaker........all u gotta do is simply swap out your pos and neg wires on one speaker......bet it will hit great!!!!!:goodjob:.......1

[AnthonyF]

no, the speakers are wired up correctly. I tried to wire up the subs in a series. taking the + from one running it to the - of the other, while that + wire ran to the bridged + of the amp and the other speaker's - was wired to the amp in the bridged - position. Get what I am saying? EVen when it WAS wired up the normal way, with the 2 channel option, each channel to each speaker, it would cut off and barely hit. Then it would come back on, then off, etc....

-Ant.

[blackboi50]

no, the speakers are wired up correctly. I tried to wire up the subs in a series. taking the + from one running it to the - of the other, while that + wire ran to the bridged + of the amp and the other speaker's - was wired to the amp in the bridged - position. Get what I am saying? EVen when it WAS wired up the normal way, with the 2 channel option, each channel to each speaker, it would cut off and barely hit. Then it would come back on, then off, etc....

-Ant.

wow i never wired anything with the neg and pos together!!!:thinking:.........im thinking u might wanna bring it to a shop cuz i dont wanna hear no bad news about the truck!!!!! :goodjob:.....1

[AnthonyF]

^like what? What would happen? Not like it is going to blow up. You've never wired anything in series? When your running 4 ohm subs or when ya gots 4 terminals on ur sub, you run the + to the - :goodjob:

-Ant.

[blackboi50]

^like what? What would happen? Not like it is going to blow up. You've never wired anything in series? When your running 4 ohm subs or when ya gots 4 terminals on ur sub, you run the + to the - :goodjob:

-Ant.

yea ant just personal prefference but i always run one sub because its easier......ran 2 twelves in the old neon and didnt like it!!!!....

when i had my 2 12s in i had the same problem cuz once one starts goin bad it makes the whole thing sound like shyt!!! with that being said u have L7's so u are good!!! those are like the best speaker to get!!! i have an L5!!!:goodjoB:

if your shyt keeps cutting off and stuff its prolly doin the protect mode thing!!!.....which is never good on an amp!!!!! just be careful ive had my fair share of amps blow up!!!! not kool!!!! :(........1

[AnthonyF]

I got 2 L7 solobarics....for FREE!!!

It might be. I paid 100 bucks for this amp brand new at pendergrass flea market. I might just need to upgrade to something stronger.

-Ant.

[blackboi50]

I got 2 L7 solobarics....for FREE!!!

It might be. I paid 100 bucks for this amp brand new at pendergrass flea market. I might just need to upgrade to something stronger.

-Ant.

man ok :doh:.....so tell me something!!! what size fuses are on the side of the amp???? :no:......

i shoulda asked that earlier!!!!!.................1

[Sammich]

anthony..gimme some L7s...PS i hope u fix ur issue

[The BUCKY]

shut up

[blackboi50]

shut up

:no:...tsk tsk.....play nice guys :D.......1

[Sammich]

bucky wildin again

[AnthonyF]

Bucky is whoring up my thread wit dat nonsense. lol

I have a 40 amp fuse in the amp and I believe a 40-60amp for the amp power wire.

-Ant.

[The BUCKY]

you dont need a fuse. use a pennie

[blackboi50]

Bucky is whoring up my thread wit dat nonsense. lol

I have a 40 amp fuse in the amp and I believe a 40-60amp for the amp power wire.

-Ant.

amp X voltage = wattage!!!!!..........so a 40amp x 12v = 480 watts.....:no:.........u need to upgrade those L7's are not liking 500 watts!!! :(:(.....that could be your problem!!!!!.....1

[AnthonyF]

you dont need a fuse. use a pennielol. No! Why you being so mean? :(

amp X voltage = wattage!!!!!..........so a 40amp x 12v = 480 watts.....:no:.........u need to upgrade those L7's are not liking 500 watts!!! :(:(.....that could be your problem!!!!!.....1

I dont need to upgrade subs, I need to upgrade fueses, is that what u are trying to say?

-Ant.

[Sammich]

i think he means upgrade your amp

[AnthonyF]

^it's cus you black folk speak on a different frequency and understand each other. lol

-Ant.

[blackboi50]

YEA DO NOT PUT BIGGER FUSES IN THAT AMP UNLESS U WANNA BLOW THE TRUCK UP!!!!!! ((((no pun intended))).....

my L5 calls for a minimun of 500 watts so i gotta class D amp 1000watts........has 2 30A fuses!!!.........
:goodjob:
u gonna need to upgrade ya amp man :cry:............1

[patrick4588]

that amp is not nearly enough for those subs. are those dual 2 ohm vc or dual 4 ohm vc? i personally would get a mono block instead of a 2 channel amp. anyway, if they are dual 2ohm, wire them in series and you will get a 2ohm load. if they are dual 4ohm, wire them in parallel and get a 1ohm load. make sure to get an amp that is 1ohm stable if you go that route. you will need an amp that can run about 1000w rms to power them. gl

[blackboi50]

that amp is not nearly enough for those subs. are those dual 2 ohm vc or dual 4 ohm vc? i personally would get a mono block instead of a 2 channel amp. anyway, if they are dual 2ohm, wire them in series and you will get a 2ohm load. if they are dual 4ohm, wire them in parallel and get a 1ohm load. make sure to get an amp that is 1ohm stable if you go that route. you will need an amp that can run about 1000w rms to power them. gl

damn he summed me up in one post :(:(........1

[Sammich]

^it's cus you black folk speak on a different frequency and understand each other. lol

-Ant.

FAWK U ROCKY

[AnthonyF]

they are dual 4 ohm subs. I guess I will have to upgrade. :( Amps are just so damn expensive.

-Ant.

[Sammich]

i'm suprised u didnt know u had to reach at least the minimum (rms) wattage in order to satisfy your sub...but u dont know nothing about satisfying do you...always come up short...italian bamma

[AnthonyF]

^It's not that, why is the amp cutting out though? I can see if it maxes out but why cut off? I hate audio sh*t.

-Ant.

[Sammich]

the sub requires 500+ just to get it started...as stated by BB50..ur giving it 480watts (i imagine thats your amps full capacity) there for you are running the amp overtime causing it to cut out.

wats the specs on that amp u have pushing BOTH L7s?

[Sammich]

^It's not that, why is the amp cutting out though? I can see if it maxes out but why cut off? I hate audio sh*t.

-Ant.


^It's not that, why is the amp cutting out though? I can see if it maxes out but why cut off? I hate audio sh*t.

-Ant.

double tee eff double post motherfletcher...quit it

[patrick4588]

you could go with this amp and run each sub to its own channel and it would power them perfectly. it runs 500w rms @ 2ohms per channel. also, mtx amps always underrate their amps, so its probably closer to 600. pretty good price too.... http://www.buy.com/retail/product.asp?sku=203307907&listingid=25527536&dcaid=17902

[blackboi50]

yea man look into the kicker amps 2!!!! they make the L7's sound the best!!!!!!:goodjob:.....1

[blackboi50]

you could go with this amp and run each sub to its own channel and it would power them perfectly. it runs 500w rms @ 2ohms per channel. also, mtx amps always underrate their amps, so its probably closer to 600. pretty good price too.... http://www.buy.com/retail/product.asp?sku=203307907&listingid=25527536&dcaid=17902

reps for u dude!!!!! i tried to explain to someone about MTX underating their amps and got looked at funny!!!!! :goodjob:.....1

[Sammich]

amirite about old fosgate amps being underrated too? like i have a 260sd says like 60watts or some nonsense...but i seen it beat up a12...

[patrick4588]

i have a thunder elite 801d and its rated at 800w rms @ 2 ohms. birth sheet said 965 @ 2ohms.

[AnthonyF]

they are not underrating their amps, they are saying it can and WILL hold 500 continuous watts w/o losing power

-Ant.

[Sammich]

well...u have issues...

[joshk5145]

i think he's saying you need to upgrade that amp. your starving the l7's lol. i had the kenwood 920 and i couldn't keep a fuse in it unless i wired it in a series. Had nothin but problems out of it when i hooked it up to a sub with a high rms. like the titanium eclipse and the eye candy audiopipes. *edit* yea my bad i posted after readin the 1st page but not the second. oops lol

[03RCode]

Anthony hit me up, I got the perfect amp for those 2 subs.

[Sammich]

****** need to answer my post

[patrick4588]

they are not underrating their amps, they are saying it can and WILL hold 500 continuous watts w/o losing power

-Ant.

i understand what they are saying, but thats a minimum rating for their amp. they say there 801d will do 800w @ 2ohms. each amp is a little different though, so they come with a birthsheet. most mtx amps do well over what they are rated at. it continuously, without losing power, does over 900watts rms.

[dabuilding]

u need a capacitor its prolly not getting enough power or it could be the 1000 watt amp those l7s have an rms of 1500 right? get a bigger amp i know those subs r really good with power trust me on that one

[patrick4588]

the amp he has is not even remotely close to enough power

[PSYCO G]

It could be a couple of things... first what gauge is the power wire?... then what fuse are you using? your supposed to have 100 amps per 1000 watts. also if your amp cuts down like that it either not getting enough power or there is a short in the mother board. another thing is the kicker L series subs require alot of power and should have a mono block amp class d!

[sonic30101]

he will need a stout amp if he has 2 dual 4 ohm subs cause he can only run 1 or 4 ohms out of the amp so something like this or bigger
http://www.sonicelectronix.com/item_1500_Kicker+SX1250.1.html

[terrytowe22]

the L7 needs more power than a 1000 watt amp bridge the amp. in see if it makes a diff. or wire ur sub like this pos. to pos to amp then neg to neg to amp or u can do a setup where u get one wire run it on one side of the sub neg. to pos. then run ur positive out then ur neg out.

[The BUCKY]

penny fuse

[PSYCO G]

Get a better amp man! At least 2000W rms. maybe somebody who knows how to install also cause wiring and amp and fuse rating are important too.

[BanginJimmy]

wow, this thread is infected with idiotic noobs.



Oh, and I completely lost the point of this thread so I have nothing of use to add.

[AnthonyF]

^thanks..i guess.


FYI i just blew the fuse in the amp. WTF. I dont get it, is the radio to powerful for the amp? Why would the amp cut out if it has a max rating on it? Its like a speed govener, the car isnt going to blow up if u sit at the S.G.

-Ant.

[X-Runner]

wow, this thread is infected with idiotic noobs.



Oh, and I completely lost the point of this thread so I have nothing of use to add.

You are so correct, thats why I didnt even try to post anything.

[BanginJimmy]

ok, read the original post and I have a few questions. If it was answered already just say so and I'll do soem more reading.


1. What actual model subs and amp? I know its a kenwood amp and L7's, but it would help to have the actual model number like S10l7d4 or whatever.

2. What is the final ohm load that the amp is seeing?

3. How it it wired up and with what size wire?

4. How were your gains set?

5. Have you tested your battery and alt to make sure they were still good?


We can move on from here and see if we can get this figured out.

[Motivation]

u need a capacitor its prolly not getting enough power or it could be the 1000 watt amp those l7s have an rms of 1500 right? get a bigger amp i know those subs r really good with power trust me on that one


:no: :no:



Just because the amp isn't "big enough" isn't going to cause the speakers to hit hard and then all of a sudden fade out...

[PSYCO G]

Im sure he is not getting the correct power to the amp and other things. those subs require plenty of power which means you need alot of power coming from the amps, which pull power from the batt and alternator. I work on systems down in miami for dream cars south.