Sub issue - one sub is bottoming out

[PIITB Wut Wut 10+ year member]

have 2 dd 9518s

before wiring the subs up we notice that one coil on one of the subs was reading a 70-80 ohm load reading. we did a quick pop test on it with a 8v battery. after that the ohm load read correctly.

Built a box that is symetrical. One sub on top of the other with a port to the drivers side.

For what ever reason now that sub seems to be bottoming out occasionaly while the other sub preforms fine....

it weird...

anyone have an explanation of what may be happening?

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[RAB 10+ year member]

coil is going out or might be mis aligned

 

[audioarsonal 10+ year member]

Sounds like a loading issue.I talked to mlstrass who said he was having a simliar problem.He said he built chambers around each sub(not enclosed) and it solved his problem.

 

[PIITB Wut Wut 10+ year member]

well i dont think it could be loading because... the box is completly symetrical... well centered off... if one was doing it then the other should too...

Rab your probably right...