csills Posted March 6, 2010 Author Report Share Posted March 6, 2010 my HU is probably is around a year old its a JVC KDR300, i swapped radios but didnt hook up any of the speakers on the ground, remote, and power, thing is i couldnt get the rca to work on that for some odd reason 2 JL W7's @ 1.5ohms - SOLD Soundstream PCX2000D - SOLD Yellow top Optima - SOLD Stock Alt 148db @ 36hz Link to comment Share on other sites More sharing options...
toaster Posted March 6, 2010 Report Share Posted March 6, 2010 OK I need full layout here. Do not understand- first you say one of them sounds bad, then you say BOTH of them sound bad. WHICH is it? If they BOTH sound bad hooked to your amp, I believe your issue is a bad ground on your head unit OR amp (but probably your head unit). When your head unit is not grounded properly, it pulls ground up thru your rca cables. If both of your subs sound bad, don't play it anymore, you are about to damage some equipment. Former USAC Director MECP Certified First Class of 1997 First car in the world to register 150db from the dash and sealed, in the trunk of an escort, with 2 10 inch subs. In 1997: http://audioforum.termpro.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=51;t=002600 Just my part in the modern development of SPL competition:) Link to comment Share on other sites More sharing options...
bobonit Posted March 6, 2010 Report Share Posted March 6, 2010 You need to isolate your problem so you don't damage your equipment. So we now know that your subs are fine. Now we need to isolate your headunit and your amplifier. Do you have ANY sort of portable music player that has a headphone jack? You can use that with a 3.5mm jack to rca adapter and hook right up to your amp. If the subs play fine, then the problem is NOT with your amplifier. If they still sound like crap, then the problem IS with either your amplifier or its electrical connections. If they play ok on your amplifier in the previous test, now its time to isolate your rca's from your headunit. Get a cheap pair of rca's from radio shack or something. Disconnect your rca's from your headunit and your amplifer and take this cheap pair you just bought and hook it up to your deck and your amplifier. Just run it over the seats, we are just testing here no need to make it pretty. If your subs sound fine, you have BAD RCA's. If it still sounds like crap, you have a problem with your headunit or your headunits wiring. 97 Maxima SE Bunch of shit going in, check out the build Build Log Link to comment Share on other sites More sharing options...
R_Mac_1 Posted March 6, 2010 Report Share Posted March 6, 2010 I don't see how one would sound bad and the other wouldn't if it were something farther up the line. The amp is a mono amp, so both subs are getting the exact same signal. 2002 Pontiac Bonneville SSEi Pioneer DEH-P6000UB Alpine SPX-17REF 6.5" components (active) Sundown SAX-50.4 Sundown z15 (3 cubes @ 35 hz) Sundown SAX-1200D 2006 Buick Rainier CXL AWD V8 Stock Bose system 12" Alpine Type E in aeroported box Profile AP1000M Link to comment Share on other sites More sharing options...
Gotloud555 Posted March 6, 2010 Report Share Posted March 6, 2010 Damn $600 for just 2 recones too much.. Money wasted and could at least buy a another new sub.. Link to comment Share on other sites More sharing options...
bobonit Posted March 6, 2010 Report Share Posted March 6, 2010 I don't see how one would sound bad and the other wouldn't if it were something farther up the line. The amp is a mono amp, so both subs are getting the exact same signal. The lack of straight information is how. jl said they will fix both of them because the other was doing the same thing free at no charge, but if they see that i abused it (i haven't) i will be charged for both of them , i dont know what they mean abused all i did was hooked up both of them when i got my other one in, and they both distorted, took it it to local audio shop, they said its blown but it still plays, just doesnt play great at high volumes. 97 Maxima SE Bunch of shit going in, check out the build Build Log Link to comment Share on other sites More sharing options...
cthedinger Posted March 6, 2010 Report Share Posted March 6, 2010 i think you should take your car to a professional shop and have them look at it ad figure out the problem for you because it sounds like you have absolutely no idea what your doing If you have any questions PM me or Add me on Facebook CLICK ME! Shop at ct-sounds.com Subscribe to us on YouTube Link to comment Share on other sites More sharing options...
toaster Posted March 6, 2010 Report Share Posted March 6, 2010 i think you should take your car to a professional shop and have them look at it ad figure out the problem for you because it sounds like you have absolutely no idea what your doing Agreed. You are about to permanently damage some equipment. I know the issue is with one of your grounds, but don't know which one. Former USAC Director MECP Certified First Class of 1997 First car in the world to register 150db from the dash and sealed, in the trunk of an escort, with 2 10 inch subs. In 1997: http://audioforum.termpro.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=51;t=002600 Just my part in the modern development of SPL competition:) Link to comment Share on other sites More sharing options...
STEvil Posted March 7, 2010 Report Share Posted March 7, 2010 Agreed. You are about to permanently damage some equipment. I know the issue is with one of your grounds, but don't know which one. If one plays fine and the other doesnt when both are hooked up at the same time its not grounds and its not farther up the line. MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
toaster Posted March 7, 2010 Report Share Posted March 7, 2010 If one plays fine and the other doesnt when both are hooked up at the same time its not grounds and its not farther up the line. ..... that was my thoughts as well, but he has now changed his information and said BOTH of them sound bad..... He is pulling up ground somewhere..... Former USAC Director MECP Certified First Class of 1997 First car in the world to register 150db from the dash and sealed, in the trunk of an escort, with 2 10 inch subs. In 1997: http://audioforum.termpro.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=51;t=002600 Just my part in the modern development of SPL competition:) Link to comment Share on other sites More sharing options...
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