Inverted?

[Slammed 5,000+ posts]

Didn't know that.
I hate being a n00b. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

lol...we learn something new everyday

I just learned something too //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[helotaxi 5,000+ posts]

With any sub install you pretty much need to try it wired both ways. Until you try, you don't know which way will blend in with the front stage better. Phase is relative and as long as all the subs in the system are in relative phase with one another (they all move in and out with relation to the enclosure together) then it doesn't matter how they are wired to the amp. A single sub will always be in phase with itself, obviously.

 

[NewToTheGrounds 10+ year member]

thanx for the help I've had it inverted for a bit now just came to me the other day that maybe there was something special i might have to do lol, as far as the polarity reverse goes i never thought of that one of my friends had told me if you have your polarities mixed up you could reck your speaker or amp, but im taking that thats not true : )

 

[squeak9798 5,000+ posts]

you run the + wire to the - terminal and vice versa

When inverting a single sub you do not necessarily need to wire the positive speaker terminal to the negative amp terminal, and negative speaker terminal to the positive amp terminal. This is the misconception I was speaking of in one of the earlier linked threads.

Polarity is not definite. It's something that should be tried both ways, regardless of mounting method, to determine which polarity sounds best with the rest of the system.

This means that when inverted, you could arrive at the best results with the sub wired "normal" (+ to +, - to -).

To state your above statement is simply, wrong //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Now mind you, this is for single sub wiring. If there are two subs, they must stay in relative phase as helotaxi pointed out. But that doesn't mean that the inverted subwoofers wiring will be the one that is reversed. The best results may be acheived with the "regular" mounted sub's wiring reversed, and the inverted subwoofers wiring "normal" (+ to +, - to -).

 

[NewToTheGrounds 10+ year member]

thanxs great help //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ill try to get sum pics for use of where im at hopefully u guys will like them my first set up and box made it my self

 

[bigguy2010 10+ year member]

i have a premier 640 i think it is, it has a thing when you come to the sub setting, and you can change it to reverse is this reverse phase??

 

[squeak9798 5,000+ posts]

i have a premier 640 i think it is, it has a thing when you come to the sub setting, and you can change it to reverse is this reverse phase??

Yes.

Only instead of changing the wires to reverse the phase (like we were discussing here), that will reverse the phase of the signal.

Same effect. Different approach.

 

[burnzie2413 10+ year member]

in the interest of learning can someone please explain adjusting phase on an amp and what it does and such? (i think this question goes with the thread...)

 

[squeak9798 5,000+ posts]

in the interest of learning can someone please explain adjusting phase on an amp and what it does and such? (i think this question goes with the thread...)

Sound waves are...well, waves. They consist of peaks and valleys, like any other waveform.

Reversing the "phase" of the signal reverses when the peaks and valleys of the signal occur. And reversing the polarity at the speaker determines when the speaker moves in or out in relation to the signal (this is called absolute phase).

For things like a phase switch on an amplifier or phase reverse in a HU, it's going to actually reverse the phase of the signal itself by 180 degrees. For example, the original signal (like on a CD) has a pattern of "peak, valley, peak, valley", then the amp or HU will reverse the pattern to be "valley, peak, valley, peak".

Likewise, if you reverse the polarity of the wiring at the speaker's terminals (+ speaker terminal to - amplifier terminal, - speaker terminal to + amp terminal), then the speaker is going to move in when the signal is at a peak, and move out when the signal is at a valley. Whereas with "normal" wiring, the speaker would move out with a peak and in with a valley. Simple way to demonstrate reversing the polarity of a speaker is to grab a 9V battery. Touch the + speaker terminal to the + battery terminal, and negative to negative. The speaker will excurt outwards, and hence is in absolute phase. Now reverse the wires....+ speaker terminal to - battery terminal and - speaker terminal to + battery terminal. The speaker will move inward, and is out of absolute phase.

 

[Slammed 5,000+ posts]

When inverting a single sub you do not necessarily need to wire the positive speaker terminal to the negative amp terminal, and negative speaker terminal to the positive amp terminal. This is the misconception I was speaking of in one of the earlier linked threads.
Polarity is not definite. It's something that should be tried both ways, regardless of mounting method, to determine which polarity sounds best with the rest of the system.

This means that when inverted, you could arrive at the best results with the sub wired "normal" (+ to +, - to -).

To state your above statement is simply, wrong //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

No mind you, this is for single sub wiring. If there are two subs, they must stay in relative phase as helotaxi pointed out. But that doesn't mean that the inverted subwoofers wiring will be the one that is reversed. The best results may be acheived with the "regular" mounted sub's wiring reversed, and the inverted subwoofers wiring "normal" (+ to +, - to -).

thanks for clearing this up //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

ECA was wrong then? //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

 

[squeak9798 5,000+ posts]

ECA was wrong then? //content.invisioncic.com/y282845/emoticons/eek.gif.771b7a90cf45cabdc554ff1121c21c4a.gif

Last time I got on ECA from work, it gave my PC a virus //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[Slammed 5,000+ posts]

oh shyt //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

Squeak....its weird though, perhaps its my front stage phase, but, last time I wired my sub out of phase (while inverted) it sounded better.

 

[squeak9798 5,000+ posts]

Squeak....its weird though, perhaps its my front stage phase, but, last time I wired my sub out of phase (while inverted) it sounded better.

Could be your cars acoustics, your subwoofer placement and aiming, your crossover frequencies, a combination of them all, etc.

It is going to be completely vehicle and setup dependent //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[phantom240 5,000+ posts]

so in short, what this thread has come to the conclusion of... well as far as WHY would you run it inverted... would be that it could be run inverted to compensate for small box volume... or at least thats the most logical thing i got out of this. Running a sub in and out of phase is pretty much common sense among those who really take the time to understand subs and their acoustic properties. Not that im an expert in the field, its just im on a never ending quest for knowledge of audio. I have audiophilia. lol.

 

[NewToTheGrounds 10+ year member]

i flipped mine to show off its booty bc its all chrome and looks nice alot of subs have nice ***** : P so why not show em off?