Reverse mount/ inverted subwoofer

**RedGTiVR6** · 11-03-2007, 08:28 PM

inverse mounting....

there's no benefit one way or the other. we did it in our car because the back side of a 40KX Focal sub is too pretty to hide:

**Megalomaniac** · 11-03-2007, 08:39 PM

when i had the mx it was quite deep to mount flush with the floor

it gave it more power too

j/k

**mnkyblz123** · 08-10-2008, 03:08 AM

I have just built a killer fiberglass sub box for 3 12s and i have 4000 watts of power going to the 3 12s but 2 of the 12s are inverted and the one in the center is just normal i have plenty of air space and no air leaks at all there are also no air leaks chamber to chamber but it sonds terable is there any thing i can do to make it sound better

**funkyphil** · 08-10-2008, 10:01 AM

I also feel the same way as jchahn, I have my entire car stealth and if you try to look in my windows, you'll see nothing but the pc monitor. And that is also pretty stock looking as well. For my home, I have my tv on the wall, but the speakers are actually wall mount Polk's LCi-C speakers and in my closet I have the amp, reciever, and PC as well as my Blue Ray.

Keeping it stealth in my eyes is the way to do it. Makes me feel really good about how it looks and sounds. Showing off my stereo or home theater is nice but keeping it MINE is much more rewarding to me!!!

Phil

**colin** · 08-10-2008, 02:33 PM

Even though this is hella old, I just wanna say that I agree.
My home audio amps are on my dresser, mostly because its HUGE and has a CD player on top of it, but all the wiring is hidden way behind, goes down behind the dresser into a custom wallplate that I made with speaker poles and RCA inputs all over the place. On the other side, RCA inputs go up the wall into the back of the TV which is mounted discreetly against the wall, and the speaker inputs go into the ceiling where I used normal every-day speakers and just screwed them to the studs in the ceiling and covered them with those typical round speaker plates for ceilings. Nobody even notices them until the sound starts pumping out and I always get questions about how the sound from the CD player is so loud with only one speaker showing (center one).

Same goes for the car. If you look at my worklog, my PC is hidden in the center console behind the screen -- which itself is fixed to the bezel as a stock piece. The wiring is all super discreet under the center plastic armrest thingy, and the amp is mounted to the top of the trunk behind the convertible top where the only way to see it is to bend over and look upwards.

There is a beauty in simplicity and the people who would truly appreciate all your hard work will be much more impressed when you describe how you hid everything. The people who have no friggin idea what everything does will appreciate that it's all there somehow and they don't know how it works

That's what I've found anyway. I like to sit in a friend's car and go "WHOA, where did that bass come from!"

**RedGTiVR6** · 08-10-2008, 02:54 PM

There are ways to keep something completely hidden, integrated looking yet very eye catching.

We've managed to do so in our car.

The back hatch area can be hidden from view on a whim. At that point, the front really doesn't draw attention. It's all about implementation.

**SPElectronics** · 08-10-2008, 11:47 PM

Originally Posted by mnkyblz123

I have just built a killer fiberglass sub box for 3 12s and i have 4000 watts of power going to the 3 12s but 2 of the 12s are inverted and the one in the center is just normal i have plenty of air space and no air leaks at all there are also no air leaks chamber to chamber but it sonds terable is there any thing i can do to make it sound better

Since you said you have one mounted normal (facing out), and two inverted (facing in), did you remember to REVERSE the phase to the two that are inverted? Those two need to be wired "reverse" (positive amp output to negative on sub, negative amp output to positive on sub), that way they all move the same direction at the same time. If you did NOT do this, then you have subs FIGHTING, and canceling each other out.

It's something a lot of people FORGET...

**Epon** · 08-11-2008, 11:31 AM

Originally Posted by SPElectronics

Since you said you have one mounted normal (facing out), and two inverted (facing in), did you remember to REVERSE the phase to the two that are inverted? Those two need to be wired "reverse" (positive amp output to negative on sub, negative amp output to positive on sub), that way they all move the same direction at the same time. If you did NOT do this, then you have subs FIGHTING, and canceling each other out.

It's something a lot of people FORGET...

And even more so, most amps have a switch that you can flip to do this for you. If your amp supports phase inversion, use that instead of switching around wire polarity. Usually the switch will allow you to chose between 0deg or 180deg (the latter being the selection you would use if you mounted your stuff inverted)

**SPElectronics** · 08-11-2008, 11:43 AM

Originally Posted by Epon

And even more so, most amps have a switch that you can flip to do this for you. If your amp supports phase inversion, use that instead of switching around wire polarity. Usually the switch will allow you to chose between 0deg or 180deg (the latter being the selection you would use if you mounted your stuff inverted)

This is a very BAD idea if he's running one mono amp to all 3 subs, since he'll STILL have the exact same problem as before..

If he's running 3 separate IDENTICAL amps, one to each sub, then yes, he could switch the two that run the inverted subs, but I doubt he's got 3 separate matching amps running them. If he does, his problem could also be due to not level matching each amp...

Not a good idea to give advice if it hasn't been thought through thoroughly. (say that 10 times fast).