so i did some investigating

[04silverz 10+ year member]

if you remember i had a thread about two ported idmax's not producingmuch volume or bass. amp ws nine.1 at 2 ohms making 900 watts.

well i disconnected one of the subs and wired the other down to 1 ohm, remember these are dual 2s, and set gains for 1000 watts. HOLY SH*T!! i cant believe a sub that is supposed to be so sq is this loud. granted its in a ported box designed for two subs and is the only one playing.

anyway if you remember my subs are both v3's but one is triple stacked and the other double stacked. so is the bass coming from the added power going to only one sub or bc they subs are no longer "competing" against each other.

ID has told me a couple different times taht the subs are the exact same even with the different magnet but...

oh yeah side note:this box is common chamber, im not risking hurting the non playing sub by leaving it in am i?

Click to read more...

 

[04silverz 10+ year member]

ok so far no one knows the answer

can anyone answer my sidenote question of whehter or not the sub in the box, not hoooked up, will be damaged if left in. the cone is moving when music is playing.

 

[sundownz Pro Seller]

It won't be damaged... it is just acting like a passive radiator.

 

[spljim 10+ year member]

take it out and make a new box it will sound even beter

 

[azbass 5,000+ posts]

um, I really would get matching woofers. to have in the same box. with More power to em.

or just use one in a new box.

 

[mlstrass 5,000+ posts]

Maybe they were wired out of phase and cancelling each other out...

 

[04silverz 10+ year member]

It won't be damaged... it is just acting like a passive radiator.

thats what i was figuring

um, I really would get matching woofers. to have in the same box. with More power to em.
or just use one in a new box.

im looking into a new amp, possibly a second nine.1, and am giong to see what hapens then. if ID says theyre the same woofer i have to go wtih them til someone can without a doubt prove otherwise. if the more powerful amp doesnt do it then ill just sell one of the max's and use the other one in a smaller single ported box i guess

 

[ThatChevyGuy 5,000+ posts]

something was wired wrong, ive used two COMPLETELY different subs, and it was louder.

 

[Immacomputer 10+ year member]

I'm willing to bet my car that things were wired wrong from the start. Whether you were running them at 8 ohms or just out of phase. Either way, it has to be your issue with two of them.

 

[04silverz 10+ year member]

something was wired wrong, ive used two COMPLETELY different subs, and it was louder.

louder than what? two different subs was louder in the same box than one? is that what youre saying?

I'm willing to bet my car that things were wired wrong from the start. Whether you were running them at 8 ohms or just out of phase. Either way, it has to be your issue with two of them.

i checked the ohm load at the speaker wire that goes into the amp. it was at 2.2 or 2.3 i believe. not real sure what out of phase is.

 

[Immacomputer 10+ year member]

i checked the ohm load at the speaker wire that goes into the amp. it was at 2.2 or 2.3 i believe. not real sure what out of phase is.

Out of phase means that one sub is moving in while the other is moving out. It happens when the positive and negative wires get switched on one sub. Just looking at the wiring doesn't always mean things are correct, especially when there are new wires in the enclosure. It's a simple flip at the amp and it's easy to hear when it's correct and when it's wrong.

 

[audioholic 5,000+ posts]

I would have questioned ID further, as to why one sub aparently requires an additional magnet slug, yet they retain the exact same specs? This makes no sense to me.

That box is designed and tuned for both drivers to be playing. Running just one of them not only alters your tuning rather drastically (lowers it), you are risking bottoming out your speaker prematurely. In other words, if that box was built properly for two drivers, its way too big and has way too much port area to only run one driver in it.