Why 2 Dead Channels on my PDX 4.150

[srl520]

Here is my system:

Speakers:

8 JL Audio 7.7 Components (New) 100-150rms

4 MB Quartz Components (couple yrs old) 60-70rms

Amps:

2 Alpine PDX 4.150 (New)

I have 6 of the 7.7 going to 1 amp and the other speakers going to the

other amp.

I just lost 2 channels in the amp running the 6 7.7s and my system has goes distorted after while when turned up. All fuses good. Voltage is 12V.

Any ideas on the reason for the 2 dead channels?

I have tested all speakers and they do work.

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[loudmofo 5,000+ posts]

how where they ran to low of a ohm load ?

 

[Supergumby5000 5,000+ posts]

so you had multiple speakers hooked up to each channel?

you probably wired the channel to see a load it couldnt handle, or you tried getting too much power out of the channels

 

[srl520]

I had this install done at local audio store by a pretty knowledgeable and reputable tech. According to him and the other techs, the PDX 4.150 should be able to handle these speakers.

I will be meeting with him tomorrow to have him evaluate what happened

 

[srl520]

so you had multiple speakers hooked up to each channel?
you probably wired the channel to see a load it couldnt handle, or you tried getting too much power out of the channels

This is what I was wondering, should I add another amp and run 1 set of speakers/channel?

I have run this system 3-5hrs at full volume or mostly (30/33). Probably around 25hrs total. No problems. Running 2 blue Top Optimas.

When this happened the system had been running for about 2-3hrs.

Would running less than 12V cause this to happen?

 

[srl520]

OK, this is embarrassing. My wonderful wife was fooling around with the controls and had the Fade and Balance all the way to one side, there for 2 of the inputs from the head unit had very little input power.

When I confronted her about it, she blamed it on the dog.

Readjusted Fade to 0 and Balance to 0 and we are back jammin.//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif:veryhapp:

 

[Toone 10+ year member]

you have all this shit and didnt think to check that first lol

 

[jwth2005 10+ year member]

haha nice How do u like the PDX amps? I have an older V12 amp and love it.

 

[FJF 10+ year member]

OK, this is embarrassing. My wonderful wife was fooling around with the controls and had the Fade and Balance all the way to one side, there for 2 of the inputs from the head unit had very little input power. When I confronted her about it, she blamed it on the dog.

Readjusted Fade to 0 and Balance to 0 and we are back jammin.//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif:veryhapp:

This reminds me of the time I tried isolating a rattle in a door panel, only to realize that I had some Tic Tacs in the map pocket.

 

[TurdFergueson2 5,000+ posts]

OK, this is embarrassing. My wonderful wife was fooling around with the controls and had the Fade and Balance all the way to one side, there for 2 of the inputs from the head unit had very little input power. When I confronted her about it, she blamed it on the dog.

Readjusted Fade to 0 and Balance to 0 and we are back jammin.//content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif:veryhapp:

Pix of wife

 

[DidUHearThat? 10+ year member]

Pix of wife

X 2 //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif