Symptoms

[Silver 10+ year member]

What are the symptoms of a + and a - that are switched on the amp going to the sub? Will the sub even work?

Eversence I re-did my box placement and port in my car my sub sounds quieter. I popped the trunk and it sounds distorted a lil bit.

I dunno if this could cause this or what. Help please. Thankya.

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[squeak9798 5,000+ posts]

What are the symptoms of a + and a - that are switched on the amp going to the sub? Will the sub even work?
Eversence I re-did my box placement and port in my car my sub sounds quieter. I popped the trunk and it sounds distorted a lil bit.

I dunno if this could cause this or what. Help please. Thankya.

Reversing the polarity would not cause the sub to sound distorted. In many cases, people intentionally reverse the polarity of their sub to obtain better blending with the rest of the system. There are no "symptoms" for it, and it definitely would not be harmful to anything. You can go out to your car and switch the + and - wires going from the sub to the amp to see if you obtain better/different results.

But, if you switched your sub and port placement, I would suspect that could be causing some of the differences in volume that you may be hearing. Sub/port/enclosure placement has a big effect on that.

Did you double check all of the wiring at the amp to be sure nothing got knocked loose? Double check the settings to be sure nothing accidentally got changed?

 

[Silver 10+ year member]

no nothings knocked loose. I think its quiter due to re-placin the box, but i dunno why though. the port fires into the rear window. i figured that would flow better into the cabn of my car. plus the sub firing itself has nice space in the trunk also.

i re-adjusted my gains and i got it to be a little louder but its not low as it used to be. doesnt sound like a 15 unless i hit a 20-30hz low, then the whole car feels like its gonna fall to pieces.

should i keep messin with the gains? maybe add a little bass from the headunit? right now no bass x-hancer is on, everything is flat except for sub volume and treble... im runnin 1500rms to it right now and it doesnt sound like 1500rms...

I think i freed up the port a little, cause it was right under a sheet of metal. (Practically like a piece of wood that nailed to port shut). there was less than a 1/2inch that was from the port to the metal in my trunk. so, i made a nice hole in my rear deck for better port flow. now its quiter.

right now my gains are at little below 3/4 and the bass boost is half way on the amp.

this is wierd.