OMGz snip snip huge increase

[req 5,000+ posts]

did you have that extra wire coiled up in a bunch of loops?

hell. the inductance from the EM field could have messed things up.

but i doubt it would be very strong or very much.

i dunno man, i think it might be in your head...

 

[helotaxi 5,000+ posts]

I didn't mean the subs shifted phase from one another but meant from the front stage which could improve SQ as he mentioned. My second paragraph was meant that the subs were originally wired out of phase from each other and when he changed the wire out, he wired them in phase this time.

Yeah I understood what you meant perfectly. If the subs were out of phase with each other by 180 deg in the same enclosure, output would be almost zero and what little you did get would sound like ***. It would be pretty obvious that something was wrong.

Rolling down the windows can have a huge effect actually.

 

[dtavano 10+ year member]

Considering that I drive a Jeep Cherokee and the subs are in the cabin I'm pretty sure there is a big effect on the acoustics of my car when the windows are down and thus a loss of volume. Also the wires going to the left sub was about 3 or 4' longer than the going to the right.

And actually a good portion of the wires were all jumbled up together on the floor.

There is an audible difference though...

On a different note, should I fold down my back seats? Hehe

 

[Volenti 10+ year member]

18' of wire will cause a phase shift and a change in phase can "delay" the subs' cone movement. Will it be a huge phase shift? Doubtful... but there will be one.
It could be possible that you had them wired out of phase and this re-wiring brought things back in phase which will yield a VERY noticeable difference in output and quality.

I'm about to buy some more wire so I'll try having like 50' of wire to my sub and see what kind of difference it makes in my setup.

Electricity travles at the speed of light (186,000miles/s), it will take 0.0000000189s for electricity to travel 18', the heartbeat in your inner ear will cause a greater phase shift.//content.invisioncic.com/y282845/emoticons/fro.gif.c695f1f814b01c4ad99fe7f8cccadd29.gif

 

[helotaxi 5,000+ posts]

The inductance of the wire causes the shift. Not the distance that the signal has to travel.

 

[Immacomputer 10+ year member]

Electricity travles at the speed of light (186,000miles/s), it will take 0.0000000189s for electricity to travel 18', the heartbeat in your inner ear will cause a greater phase shift.//content.invisioncic.com/y282845/emoticons/fro.gif.c695f1f814b01c4ad99fe7f8cccadd29.gif

Like helotaxi said, it's caused by the inductance. The phase shift isn't really a delay in time, which is why I quoted it in my post, but rather a lag in the phase of the original signal. This is caused by the wire going from a purely resistive load (0 phase angle) to having an impedance with an imaginary component giving it a phase angle. The smaller the wire, the lower the inductance and the smaller that phase angle will be.

Oh, and electricity doesn't really flow at the speed of light but pretty close to it.

 

[nauc 10+ year member]

so it got twice as louder??? 3 db increase is usually twice as loud unless its in the 140's then its different. but i think your just getting the placebo effect. just playin but maybe it did get louder?

3ds? not according to M.Smith from JL Audio... its 10dbs

 

[newusername 10+ year member]

3ds? not according to M.Smith from JL Audio... its 10dbs

Check post #13

 

[Lightninghoof 10+ year member]

Try playing around with this speaker wire calculator:

http://www.bcae1.com/images/swfs/speakerwireselectorassistant.swf

 

[Lakota 5,000+ posts]

Try playing around with this speaker wire calculator:
http://www.bcae1.com/images/swfs/speakerwireselectorassistant.swf

That thing is pretty sweet.

 

[BassAddictJ 5,000+ posts]

i dunno about 3dB, but taking off 13ft of unnessessary wire im sure helps the efficency of the amp/sub enough to be noticable.

 

[dumple 5,000+ posts]

im not gunna lie before i even read the post i saw the title and thougth about a guy gettin his meat whistle cut

 

[TreyE 10+ year member]

that calculator said you had about 1V drop in your wire...that sucks lol

 

[Calikid 5,000+ posts]

im not gunna lie before i even read the post i saw the title and thougth about a guy gettin his meat whistle cut

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif

 

[htownplaya456 10+ year member]

I'm reading another variable that is not accounted for:


With that information, it's quite possible that you noticed a large difference when listening; in fact, it's the norm.

And just to clarify something: 3dB is a perceived increase in sound, but the perceived doubling of sound is 10dB.

well if you were to double the power to a subwoofer would it get twice as loud?