LA1

Allrighty, didnt work for me lol. Hey who knows maybe yours just needed a connection moved. Mine was working for 9 months, speaker blew and I am now assuming messed up the amp. ****UPDATE.**** Removed every wire from start to finish on both ends, replaced RCA's, Replaced Speaker wire with brand new wire (Speaker is only 16 inches from sub) hooked everything back up and had the same result but this time lets say I could get to around 40% b4 I had a problem, that lasted for about and hour and then all of a sudden the speaker went dead. When I got to the location I needed to get to I carry a multi meter with me, so I checked the ohms, I was getting .006. I shut the truck down, let everything cool, start then recheck and I get a reading of .026 for about 3 seconds, and then it shoots down to .003. That seemed to be the end of the amp cause now I only get the .003 no matter what I do. Would anyone not agree that its a blown amp? I just got home from work, so I am going to do the normal routine, Paper work, Poop, Shower, Eat my dinner and get some sleep. When I wake up I am going to go see my buddy, have him test the amp and pick up a new amp. Will let everyone know how that goes. Thanks again all.

Wanted to know if there is a way to just test the amp? I will be doing what everyone said to do. I just want to know for sure that its just a shit amp. To me even being out of the loop for so damn long, I feel it just makes sence to be the amp. We shall see.

Really? Since this isnt a common car or truck, it was a real pain in the ass to run these wires. For those that do not know, inside a Peterbilt or a Pacar (Pacar is who builds Kenworth and Peterbilt trucks) you have your normal steel outside body and then an internal shell thats Aluminum, so I was able to run all the wires inbetween the outer body and the inside shell. I will do as you said Alvitae. For all others. I am going to test the Ohms, and I have seen people talk about the RCA's for other problems, could this also be a problem for me? I am off to work now, so I will not be back for some time.

I went from a P2 to a P1. I found out (after the fact) that the P2 I had bought was well over a year old b4 I bought it, and "may" have been returned. Ahh in any case, I will check everything everyone told me to check, and Let everyone know. When I check for ohms, am I just going straight to the output of the amp, or @ the speaker wire?

I will recheck all connections. I honestly clueless as to how to check the ohms. Was never great at electrical, but I am sure I can figure it out. Its been a good 10 years since I was into all of this, do todays amps go bad that easy? I really am leaning towards the deck or amp, but wanted to see what some of the great minds thought it could be. Thanks for the reply.

In a nutshell... I have the following. Pioneer DEHP4900IB Deck Pair of Pioneer TSA4672R Speakers (4x6) Kenwood KAC8103D Amp With a P21234 Rockford Sub (Non Ported, custom box built to proper specs) This is all installed in a Peterbilt Big Rig - Yaknow those big scary trucks... Anyway this all was installed by me LAST September with the help of a friend of mine from a Stereo Shop. Everything was fine until about 3 months ago. Out of the blue my sub started cutting off, and the only way to get it back on was to turn my radio off for a bit. Then after a bit of use it would do it again. I played with the controls and lowered how much the sub hit, everything seemed fine until my sub all of a sudden sounded like crap. I decided to check out the sub, well wouldn't you know it... The sub was in fact cracked in 2 places... So I said I guess that was the problem. At the same time I broke my Sirius Plug & Play radio, and seeing as this rid is an Auto Transporter, I never installed a real FM ant, so I was left with just a CD player. Anyway I got frustrated and decided I would just deal with what I had. Today... 3 months later I decided to re up my Sirius account, go buy a new Starmate 4 and buy a new sub, cause I really have been missing the system. I spend around 30min to replace everything, turn it all on and its the SAME thing. The sub just cuts off if you crank it to high, and I am not talking about 80% volume, I am talking about lifting it past 30%.. I am 32 years old with 4 kids, I honestly have not kept up to speed on all the latest and greatest, but come on now. This seems to be a simple fix. All my setting are the exact way my buddy told me to do. And remember the system played PERFECT for 9 months straight, and was even able to handle 95% volume with NO problems so please can someone point me in SOME direction. I am kinda feeling like its the Stereo now. But don't want to just start guessing on what the problems COULD be. I thank everyone in advance for your help. PS here is the Cliff Note Version... "Sub cuts off @ 30+% Volume"