Amp problem, 1 rca louder than 2?

[jucaraman 10+ year member]

ok i understand, I just wanna thank you for the help, I cant wait to get out there tomorrow and mess around and see what I can find, the whole sounding good running off of 1 rca wire outta the set it just confusing me?? doesnt make sense, then when you plug the other one in it makes the sub pop once and the lights flicker a tad and then it starts sounding weird, then you unplug one rca, and one sub starts slamming and sounds very good?

 

[stones 10+ year member]

is there a quick way to check my polarity is correct without removing the speaker from the box?

You take a 9volt battery and and touch the positive terminal to the (what is supposed to be) the positive speaker wire, same with the negative.

If the polarity is correct the sub will move forward slightly.

If the polarity is incorrect and the positive battery terminal is actually touching the speakers negative terminal the sub will move slighty inward.

Your subs are dual voice coil so that complicates things, if you connected one the coils correct and the other incorrect on the same sub the 9volt test will be inconclusive.

The only way to be absolutely sure is to pop them out of the box and rewire them.

 

[jucaraman 10+ year member]

I think my polarity is jacked, ill see what I can do

 

[stones 10+ year member]

ok i understand, I just wanna thank you for the help, I cant wait to get out there tomorrow and mess around and see what I can find, the whole sounding good running off of 1 rca wire outta the set it just confusing me?? doesnt make sense, then when you plug the other one in it makes the sub pop once and the lights flicker a tad and then it starts sounding weird, then you unplug one rca, and one sub starts slamming and sounds very good?

Important note-

Its bad to uplug and plug in RCA's while the amp is running, its hard on the inputs and could possibly damage them.

That weird noise is probably because of the one of the subs wired wrong, you'll get it all fixed tomorrow.

 

[jucaraman 10+ year member]

yeah I am maybe thinking in wiring the subs before I put them in the box, I might of wired a - to a - on the speaker or a + to a + on the speaker.

will unscrewing the subs, weaken my boxes sub holding strength? I wanna make sure the subs stay scewed in tight, after I spent all the time building it ya know.

 

[jucaraman 10+ year member]

ok, I will stop doing that then immediatley

sometimes my friend will try to get alittle to helpful, and start pulling the rcas and switchin them and stuff :S but i never had the system up above volume like 5 barely moving sub, during this.

 

[jucaraman 10+ year member]

on that 9 volt test what will the sub do if the wiring is incorrect on the sub (inside box on sub)

 

[stones 10+ year member]

yeah I am maybe thinking in wiring the subs before I put them in the box, I might of wired a - to a - on the speaker or a + to a + on the speaker.
will unscrewing the subs, weaken my boxes sub holding strength? I wanna make sure the subs stay scewed in tight, after I spent all the time building it ya know.

Unfortunatly the screws will chew the wood up with repeated taking the sub out and putting it back in, so you want to make sure you get it right the first time to avoid having to go back in there.

Turning the sub slightly to offset the mounting holes will work if the original holes are too badly chewed up.

Those coarse thread black drywall screws are pretty good for not chewing the wood up too bad.

 

[jucaraman 10+ year member]

but removing it once, or twice wont matter much will it, once I get this corrected I plan i keeping it closed for good.

 

[stones 10+ year member]

on that 9 volt test what will the sub do if the wiring is incorrect on the sub (inside box on sub)

I don't know, I never actually checked too see what would happen if a dvc sub had it coils connected wrong.

 

[jucaraman 10+ year member]

hmm I guess ill find out //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Ill have to let you know

Ill get you a picture of my box I just finished tonite sometime tomorrow

 

[stones 10+ year member]

Cool, good luck //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[jucaraman 10+ year member]

I fixed the polarity you were right on of the wires was backwards, I put the 9volt and it sucked in and the other pushed out so I switch it and ta da, then I piggybacked the wires, and bridged it mono 2ohm, and drove around for about 20 mins slammin pretty good most the time, and when I got out I felt the amp and it was warm to the touch, but not bad, ive got a temp gun, but not with me id guess running maybe 100 degrees, and its about 80 outside.

 

[jucaraman 10+ year member]

I deff need to tune em in though they arent set quite right yet, but sounding 100% better already.

 

[stones 10+ year member]

Good to hear //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif