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no sound from amp


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jgonzales82 
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Joined: October 12, 2011
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Posted: October 12, 2011 at 1:09 PM / IP Logged  
Okay i have a mtx 8302amp that i had pushing 2 jl audio 12's (model w0v2). Those bumped very good in my car. I then got a mtx 8500 from a friend hooked it up to the mtx amp turned on but no sound. so i swapped out the rca cables and checked the remote wire to see if they got pinched anywhere and still nothing still nothing! so now i picked up a eclipse cd5442 to see if the rcas went out on my alpine and i still have no sound with the eclipse.
so now im thinking my amp has bad connectors so we test the amp and sub in a friends ride and they both work and just for fun we hooked up the eclipe deck and it worked with everything also.
haemphyst 
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Posted: October 12, 2011 at 1:47 PM / IP Logged  
jgonzales82 wrote:
I then got a mtx 8500 from a friend hooked it up to the mtx amp turned on but no sound.
You hooked an amp to an amp...? Help *me* out (probably everybody else, too...). What, precisely did you do?
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
i am an idiot 
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Posted: October 12, 2011 at 1:57 PM / IP Logged  
If the gain controls are turned all the way counterclockwise, that amp will have no output.
jgonzales82 
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Posted: October 12, 2011 at 3:59 PM / IP Logged  
yeah i have the gain set half way! on the mtx 8302 if your bridging the amp you only use the left gain and turn the right side all the way down.
jgonzales82 
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Posted: October 12, 2011 at 4:00 PM / IP Logged  
mtx 8500 is a sub and i hooked up to my mtx 8302 amp!
i am an idiot 
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Posted: October 12, 2011 at 5:28 PM / IP Logged  
That is not how you use the gain if you are bridging that amp. Both channels need to be set at the same level, and you have to feed both RCA inputs.
jgonzales82 
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Posted: October 12, 2011 at 5:33 PM / IP Logged  
okay so i tried it with both gains all the way up and still nothing
i am an idiot 
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Posted: October 12, 2011 at 8:06 PM / IP Logged  
Single or Dual voice coil woofers?  Have you used an ohm meter to verify that the woofers do not have an open voice coil?
soundnsecurity 
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Posted: October 12, 2011 at 8:18 PM / IP Logged  
check your main fuse. sometimes it can be only slightly blown, meaning it is blown but the end fell out in a way that it makes just enough contact to turn the light on the amp on but the amp wont output. you need to test the fuse because you might not be able to tell just by looking at it. test for voltage on each side of the fuse, if its semi blown you will notice a pretty big voltage drop.
jgonzales82 
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Posted: October 12, 2011 at 8:51 PM / IP Logged  
they are dual voice coils!
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