Inverting a sub???/

[Pistonsfan70 10+ year member]

Well I have an IDMAX now and the cone is very ugly and I was considering inverting the sub. Do I need a new box to do this, or do I just flip it upside down and screw it in? Also, does this effect the output or SQ of the sub at all?

Thanks!!

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[SSS 18734 5,000+ posts]

the only effect it will change is that you will now have more airspace in your box, which will change your tuning. But if its sealed it wont make much of a difference.

 

[dbornotdb 10+ year member]

Like was said, you will gain some airspace. Probally not enough to affect the tuning to your ear though.

Also you need to make sure you flip the wires on the sub terminals. With the sub inverted, the positive from the amp should go to the negative of the subwoofer and the negative form the amp to the positive of the subwoofer.

 

[Pistonsfan70 10+ year member]

Why do I need to flip the wires around????? Won't that harm the sub? Thanks for your help so far!

 

[SSS 18734 5,000+ posts]

no, that just reverses the direction the cone moves. Since you have it upside down, you want it to move the other way. ALthough hooking it up normally will work too.

 

[dbornotdb 10+ year member]

You want to cone to move outwards into the listen space when the bass hits. Thats why you flip the wires.

 

Listen to it with the wires normal and with them flipped, I think you will hear a difference.

I know I can.

 

[Pistonsfan70 10+ year member]

Thanks for your help, I will invert it pretty soon. I love the sub but it is kind of an eye-sore. None of my friends have heard of an IDMAX anyways so they will think it must be an awesome sub since it is flipped lol

 

[squeak9798 5,000+ posts]

FYI: When you install a subwoofer, you should try it with both "normal" polarity and reversed polarity to see which way sounds best in your particular vehicle. There is no right or wrong here....just whatever sounds best.

 

[squeak9798 5,000+ posts]

You want to cone to move outwards into the listen space when the bass hits. Thats why you flip the wires. 

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The cone moves in just as far as it moves out with each note.....guess I'm not understanding what you are saying here.

 

[Pistonsfan70 10+ year member]

As long as it has no chance of harming the sub, I am going to try it. I appreciate your help so far

 

[SSS 18734 5,000+ posts]

As long as it has no chance of harming the sub, I am going to try it. I appreciate your help so far

you will be perfectly fine. Many people do this.

 

[audioholic 5,000+ posts]

You want to cone to move outwards into the listen space when the bass hits. Thats why you flip the wires.

Like squeak said, the cone will move in AND out during the bass notes. The cone moving backwards is not it simply reloading to 'hit' forward again, if that's what you're thinking. And so that is also NOT why you flip the wires. Reversing polarity is about sound wave interaction. You try the different polarities to find out which allows the subs to blend with the rest of the system best. Subs are usually the furthest speakers from your ears, and due to many times using multiple steep slope crossovers the subs can become out of phase with the rest of the system even with all speakers wired for the same phase.

 

[noob with an RS 10+ year member]

how dare you say our cones are ugly! you call yourself an idMAX owner!?!? shame on you! my idMAX needs a twin brother and i think you're ungrateful.. hand it ova bastid!!

 

[audioholic 5,000+ posts]

I took it to mean it was damaged or something. I think the ID cones/logo are pretty elegant myself.

 

[Justinw303 10+ year member]

...better than a Shiva or something from Adire...