great forum here at scionlife!
i just purchased an xb and i love it
here's my problem i have two mtx thunder 5000's in a bandpass box i had my old alpine mrp-f240 amp hooked up to them in my old car and they would knock with no problem at all recently i purchased the sony xm-2002gtr from circuit city and they installed it for me it worked perfectly fine for the first 2 days and now all it does is go into protection mode i checked all the connections i even moved the poor excuse for a ground they made i called them and they told they would book me an appointment for friday but in the meantime any help would be greatly appreciated ! thanx in advance

 

first does the sub box have 2 sets of speaker wires going to it or just 1? if it has 2 disconnect one set being careful not to let the bare wires touch each other or a ground, now check if the amp is still going into protection. if yes, reconnect the set and disconnect the other set of speaker wires. does amp go into protection? if no, then sub is bad, if yes, disconnect both sets of speaker wires. does amp still go into protection? if yes you possibly have a bad amp. you can check voltage with a multimeter also to make sure you are getting 12 volts on the power wire of the amp.

another possibility is if the ground was faulty the amp would look for a ground through the rca's which could damage the amp or even the headunit.

 

i tried disconnecting the speakers and it would stay in protection mode i personally think it is the amp because everytime i turn the car on the subs work for a second or two then the amp goes back into protection i have an appointment with them on friday morning i just want them to give a new amp and take this one back

 

if possible look into the Kicker amps. they might be a little more money but worth it.

 

that i will do thanx

 

 

well I finally fixed the problem it turned out that one of my tens were blown so i did the only thing i could and put 2 twelves instead and now it knocks hard I just need to dynamat now

 

glad you got it rockin'.

 

well i dynamatted over the weekend and the bass just keeps getting deeper my next mission is to build a panel to keep my box in place and hide one wire that is visible

 

2-12's is the shizzzz! Just the right size for the box.

 

i have another question i have my sub box with the woofers facing up should i face the woofers in another direction to get better sound? for example like towards the seat or hatch

 

Haven't tried up, but between facing forward or back at the hatch, rear firing sounds louder/better/deeper imho.

 

i will try that thanx