EMF Audio Ermahgawd?

[Chriszle 10+ year member]

Still doubting the 6500 RMS claim. Not doubting that the suspension/motor can handle 6500, probably much more in the right box, but the thermal limits of a 4" coil are still ~4k clamped.

 

[RSDXzec 10+ year member]

Still doubting the 6500 RMS claim. Not doubting that the suspension/motor can handle 6500, probably much more in the right box, but the thermal limits of a 4" coil are still ~4k clamped.

same, when i looked up the specs i was expecting more than a 4 inch coil.

 

[supereikenator 10+ year member]

Still doubting the 6500 RMS claim. Not doubting that the suspension/motor can handle 6500, probably much more in the right box, but the thermal limits of a 4" coil are still ~4k clamped.

This is why I posted this thread, I want the people who know their stuff to voice their opinion. I don't know enough to say whether or not a hulking sub like this would be any good. I just gawk at how beefy it is.

 

[mlstrass 5,000+ posts]

4 18's in a flat wall might be in the future if I decide to change things up over the winter.

I do wonder about that power rating as I agree that a 4" coil can only take so much. I believe the SHD is rated around that and I've seen a few of them blown recently.

 

[raptor727 10+ year member]

4 18's in a flat wall might be in the future if I decide to change things up over the winter.
I do wonder about that power rating as I agree that a 4" coil can only take so much. I believe the SHD is rated around that and I've seen a few of them blown recently.

please keep us updated if you do that, I would love to hear how they perform

 

[supereikenator 10+ year member]

4 18's in a flat wall might be in the future if I decide to change things up over the winter.
I do wonder about that power rating as I agree that a 4" coil can only take so much. I believe the SHD is rated around that and I've seen a few of them blown recently.

I agree, let us know.

 

[bhsdriller 10+ year member]

 

[mlstrass 5,000+ posts]

please keep us updated if you do that, I would love to hear how they perform

I don't do build logs, but I'm sure some vids would end up on youtube...

 

[supereikenator 10+ year member]

Still doubting the 6500 RMS claim. Not doubting that the suspension/motor can handle 6500, probably much more in the right box, but the thermal limits of a 4" coil are still ~4k clamped.

I think it might be a quad coil, if it is, should it be able to handle 6500 rms?

 

[Dirtrider4eva 10+ year member]

honestly its not that big of a deal. the amount of power, electrical, and strength spent in a system design can be better suited for other equipment. it more than likely has a super low sensitivity, and will require huge amounts of power to generate any decent numbers. When in fact, a more sensitive driver will outperform this easily. Think about Say, 1 15" DD Z or HDC4/ Zcon. all utilize a 4" coil. they will probably be louder up to the 2.5-3k power line. well beyond that this EMF driver may be louder, but you could easily run 2 15" other 4" driver at 2.5-3k vs 1 15" that needs 5-6K just to get moving, and be louder with the latter.

 

[Chriszle 10+ year member]

I think it might be a quad coil, if it is, should it be able to handle 6500 rms?

Still do not seeing it be able to dissipate enough heat to perform at that power level for long periods, doesn't matter how many coils it has.

 

[Dirtrider4eva 10+ year member]

Still do not seeing it be able to dissipate enough heat to perform at that power level for long periods, doesn't matter how many coils it has.

but its name is errmagerd im retarded sub.

 

[Slo_Ride 5,000+ posts]

EMF - Unbelievable - YouTube

 

[hispls 5,000+ posts]

According to a reliable source, thermal limits of a coil can be estimated by 100W X number of layers X diameter (in inches). Anything beyond that and it's only a matter of time before it burns up. That's continuous sine wave, go to work, come home and it's still playing. I'd rather get as loud with less power with more efficient sub, but some people just like to brag about how much power they use so these inefficient subs have their place I guess.