Inverting subwoofers.

[Fi_ 10+ year member]

Do I need to reverse polarity or anything special? Also what's a good way to make the holes perfect so your surround doesn't hit the wood? I wanted to invert to save a little space and for looks also It will be easier for me to monitor my subwoofers and not have to take them out of the box... I'm just scared that I might do this wrong and **** my subwoofers up.

Also what do you guys recommend for box size @ 32hz for 2 DC Level 3's with added spiders. right now i'm doing 3ft^ ea. which DC says is best but I've never ran a box this small for 2 15's of this power. I was thinking doing 6.5-7ft^3 for the both of them and tuning to 32hz right now im 6ft^3 tuned to 34hz.

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[Bggd_GMC 10+ year member]

yup just reverse it... some head units do it for you FTW!! atleast mine did.... make a template of how wide you need the hole... then cut it out

 

[Sleeklsc 5,000+ posts]

Predrill the holes with them mounted regularly. If all the subs will be inverted then you just hook them up like you normally would.

 

[Fi_ 10+ year member]

Yeah I'm going to invert both subwoofers so I DO NOT need to invert? I see 2 different responses to this I need a definative answer. Also what do you mean make a template of how wide I need the hole?

 

[wenn_du_weinst 10+ year member]

inverted sounds like **** //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

you also play around with the polarity. I do that no matter inverted or mounted regular.

 

[mast240 10+ year member]

You will reverse your polarity if you invert. also, predrilling your holes like mentioned before will help you get the subs centered. You also need to take into account that your box tuning may change slightly, due to the sub displacement not being a factor.

 

[Sleeklsc 5,000+ posts]

F really? It's been a while since I inverted subs but could've sworn you wired them up the same as long as they were all facing the same direction.. o well...

 

[Bggd_GMC 10+ year member]

Yeah I'm going to invert both subwoofers so I DO NOT need to invert? I see 2 different responses to this I need a definative answer. Also what do you mean make a template of how wide I need the hole?

knowing me i would fawk up so if the box isnt already built id cut it out and make sure the surround doesnt hit the wood

 

[Fi_ 10+ year member]

You will reverse your polarity if you invert. also, predrilling your holes like mentioned before will help you get the subs centered. You also need to take into account that your box tuning may change slightly, due to the sub displacement not being a factor.

I'm making a new box without displacement added. and I'm still seeing mixed signals DO IT REVERSE or leave it NORMAL seems like nobody actually knows haha. Also inverted sounds like ****? since when?

 

[Bggd_GMC 10+ year member]

I'm making a new box without displacement added. and I'm still seeing mixed signals DO IT REVERSE or leave it NORMAL seems like nobody actually knows haha. Also inverted sounds like ****? since when?

you reverse if its inverted.... and inverted does not sound like crap... both inverted and non inverted sounded the same to me

 

[wenn_du_weinst 10+ year member]

Since always that lets all of the mechanical noise enter the listening area instead of being hidden by the enclosure.

There is no definitive answer to the polarity question, it all has to do with the distance and timing it takes for the sound to leave the enclosure/woofer and then get to your listening position. That is why you try it both ways, you will notice a lot of the good amps out have a phase switch, that is exactly what reversing the polarity does.

 

[ahole-ic]

I'm making a new box without displacement added. and I'm still seeing mixed signals DO IT REVERSE or leave it NORMAL seems like nobody actually knows haha. Also inverted sounds like ****? since when?

Inverted doesn't sound any different than normal unless you have crappy subs and they have mechanical noise. Lol wenn told on himself. Anyways, it really doesn't matter whether you switch polarity or not if they are all facing the same direction. It only matters if one is inverted and the other isn't. Then they cancel each other completely out if you don't wire one backwards.

 

[mast240 10+ year member]

I'm making a new box without displacement added. and I'm still seeing mixed signals DO IT REVERSE or leave it NORMAL seems like nobody actually knows haha. Also inverted sounds like ****? since when?

inverted sounds like **** when the box isnt designed properly, or the subs arent mounted properly. You DO want to reverse your polarity. The main reason people invert, is to save space, I.E. if they dont have enough space to get proper cubed with sub displacement. it can sound just as good... for your cutouts, you'll just do normal sized holes, the manufacturers recommended.

 

[wenn_du_weinst 10+ year member]

don't tell people **** that's wrong just because you don't know the answer. There is a big difference when switching polarity and it ''really DOES matter''

 

[Fi_ 10+ year member]

inverted sounds like **** when the box isnt designed properly, or the subs arent mounted properly. You DO want to reverse your polarity. The main reason people invert, is to save space, I.E. if they dont have enough space to get proper cubed with sub displacement. it can sound just as good... for your cutouts, you'll just do normal sized holes, the manufacturers recommended.

I realize this but in a normal size cutout wasnt mean to have surrounds in it and i dunno how to see or tell if the rubber is hitting it really worries me. So I reverse polarity and I just make sure my cutout is exact and ill measure and **** thanks everyone. does anyone advise against inverting my lvl 3's?