2 exact same amplifiers to 1 dvc sub?

Ok i have 2 - 12" DVC Cerwin Vega Stroker subwoofers rated 2000w RMS & 4000w Max...... and right now powering these subs i have 2 pheonix gold Octane-r 1500w mono amplifiers.. one powering 1 sub and the other powering the other sub!!

I just don't feel as though the subs are getting enough power compared to what they can handle!!!  so i was actually thinkin about buying 2 more of the Pheonix Gold Octane-r 1500w mono amps..(exact same as the ones i have now) so that i could run (having a total of 4 identical amps now) 2 amps to each subwoofer by connecting 1 amp to each voice coil on the subs!!

i believe doing so would be safe as long as the amps are all at the same frequency and all!! but i just wanna check and see if i am able to do this without damaging the subs or amps!!

So can i connect 2 amps to 1 DVC sub by connecting 1 amp to each voice coil??? 

the amps are pheonix gold which have a config switch so only the master amp controls settings and each additional amp controls are bypassed so they all run exactly the same!!!

Ok thats what i thought!!!

I just wanted to check and see if it was ok because even though i was almost positive it was ok... i figured id rather be safe then sorry!! lol

and i think the cerwin vega's should be able to handle it with a 2000w RMS & 4000w Max rating for each sub!!!  and of course i wouldnt push em harder then they should be!!!

So i think i am going to get me 2 more of these amps and do that!!

my stereo pounds so damn hard now... about 130db actually!!! and thats not even giving each sub the power they need!!!

damn it.... thats right i totally forgot about that part of it!!

so it would be pointless to do that then cause my amps are 2 ohm stable and the subwoofers are 4 ohm DVC!!

When i bought the subs i got the 4 ohm DVCs because i was only intending on having one amp to each sub.... thus wiring the subs in parrallel config. to get 2 ohm load to the amp!!

but i can always still return the subs and exchange them for the 2 ohm DVC subs which are the exact same as the 4 ohm DVCs only with 2 ohm DVCs instead!!!   so there may be hope for me yet with doing what i would like to!!!!

thanks for mentioning that.... i totally forgot about that!!!   so thanks for reminding me!!!

swerks wrote:

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u can for sure put 1 amp per voice coil, make sure thet are set equally and giver!

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i am an idiot wrote:

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Are you saying he can wire one coil of his dual voice coil woofer out of phase with the other coil and it will not hurt anything?

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swerks wrote:

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i think he is

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Flakman wrote:

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Haem is correct...it would sound like wet doodie...but won't hurt the woof.

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haemphyst wrote:

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i am an idiot wrote:

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Are you saying he can wire one coil of his dual voice coil woofer out of phase with the other coil and it will not hurt anything?

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Yep... That's EXACTLY what I'm saying...

swerks wrote:

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i think he is

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Flakman wrote:

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Haem is correct...it would sound like wet doodie...but won't hurt the woof.

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Probably wouldn't sound like much at all... Two voice coils wired out of phase will have very LITTLE output. But you're right, no damage (as in zero...) would occur.

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aznboi3644 wrote:

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i was just saying....since the coil won't be moving as much but still receiving the same amount of power right??

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This is a misconception I had for a very long time too.  The truth is as long as you do not exceed the thermal power rating of the voice coil, it can remain stationary without damage.  Two signals 180 degrees out of phase at exactly the same levels applied to a DVC speaker will theoretically result on zero cone movement, and the end result will simply be heat.  But no damage will occur unless you exceed the speaker's power ratings, and then damage will occur anyway.  So the reason to match the signals going to separate amps used to power a DVC speaker is to minimize self-cancellations that will limit output levels.

i may have overread it but im not sure if anyone gave the writer of the post any ideas on how to properly set the gains so that you know for certain that both amps are putting out the same amount. as we should know, not all "3/4 of the way up" are equal.

one thing I do in these rare occassions that I actually have to put an amp on each coil is use my DMM and measure the voltage output of one amp at the bridging/mono channels (without anything connected) with it set at whatever level I'm wanting it at. Then I match the voltage on the second amp to the first. Once matched, I connect the coils to the amps. This way, you are certain that the output is equal for the best results.

so you are saying that you are going to get the best sub performance if one coil is seeing more power than the other? forgive my ignorance here but i would think that if you are going to have a dvc sub perform at an optimal level, then both coils need to be active... at least that's what I've always practiced and was taught. i was always advised too that you want both coils to move as one in order to have the best output.

for example, if one coil is wired to an amp with the gain set at 3/4 of the way up, you would ideally want the other coil to see the same amount of power for the best performance. if it doesnt matter, then whats the point of having a dvc sub (aside from an easy way to get a 1ohm load with one sub)?

The only point to a DVC sub (or any other DVC speaker) is for connection flexibility.  Yes, for maximum output performance maxing a speaker's power handling capability is one approach.  But let me be clear: you can connect any amplifier signal you want to use to each voice coil of a DVC speaker and as long as you don't exceed the coils power handling ability, it wont matter.  There is no reason why the power levels need to be the same.  If you want to connect a 200 watt amp to one coil and a 100 watt amp to the other, you can.  As long as the signals are in phase, the effect will be additive. 

Dual amps on a DVC woofer is no big deal.  I've used dual amps on a DVC sub with one crossed over higher than the other to achieve the desired blend with the midbass drivers (I needed more power below a certain frequency, so for example one coil was driven by a 500 watt amp below 60Hz and the second coil driven by a 300 watt amp below 100Hz.)

wow thanks for all the helpful info from you all!!!!

not sure if i made it clear or even mentioned for that matter that the amps im using are all phoenix gold OctaneR 1500w mono amplifiers which all have the abilitiy to have them all connect with only one being the MASTER amp and the others being the SLAVE amps... which means the master amp can be set so that whatever the master ampo settings are is what they all are!! the master amp can be set to bypass all slave amp settings!!!   hope you all understand what im saying here!!!

anyways i have all things understood about the question i posted about!!! THANKS everyone for your info!!

but now during the process of starting to build my enclosure for the subs.. ive ecountered a lil confusion about the specs for my subs  (which again are Cerwin-Vega Stroker 12" DVC 2ohm Subwoofers)

the following pictures are from the install manual that came with the subs....  https://i142.photobucket.com/albums/r109/DaShizNit74/Strokerinstallmanual.jpg   https://i142.photobucket.com/albums/r109/DaShizNit74/Strokerinstallmanuall.jpg      from what i see in the 1st picture for Spkr vol. displacement it says 0.16 cu.ft. and in 2nd picture it says for sealed enclosure the Box Volume: 1.1 cu.ft. which correct me if im wrong... is what they recommend the enclosure volume should be for this sub!?!?!

ok after i started and finished markin out all the pieces needed for the enclosure i came across this info from the Cerwin-Vega website, at this following link  https://www.cerwinvegamobile.com/CVM_enclosures.html      the info on this webpage for sealed enclosure volume for the Stroker 12" should be 1.5 cu.ft.

therefore this leaves me confused on what the manufacturer recommended box volume should actually be!!!!

anyone have any suggestions or anything to what the actual manufacturer recommened Volume is CORRECT????? 

any help ASAP would be awesome..... and thanks ahead of time and thanks again for all previous info!!!!

DYohn] wrote:

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ccording to the manual the recommended enclosure size is 1.75 to 2.25 cuft ported, tuned to about 35Hz.

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actually i just talk to Cerwin-Vega's costumer support & for a sealed enclosure the Volume is 1.5 cu.ft

so everyone disregard my previous reply about this!!!!

thanks