Sub builders & TC experts... building a 4kw 3hp woofer???

[SomeDonnieDude 10+ year member]

Hoping someone can help me out here... im looking to build a 12" woofer based on a tc sounds 3hp ferrite motor (was previously an LA storm x1). Im looking into a building a woofer that will handle 4,000w daily for music. My concern is if I can fit a coil in there that will handle the power on music, and if it will cool properly. Motor specs...

Gap OD- 3.385"

Pole OD- 2.933"

Top plate height- 1.41"

Motor height from bottom to top plate- 4.255"

Pole extends 0.6" above top plate

Pole vent is 1.375" diameter

Can anyone recommend me some coil dimensions? Would likely use a aluminum flat wound coil unless someone advises other. not sure on basket, if I can repair my cracked tc3k/storm style basket i will likely use it. but not opposed to using 12 spoke either.

Before i get too far ahead of myself, anyone think using this motor (or a 3hp in general) would not be the greatest idea?

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[Boomsday 10+ year member]

wont work

 

[SomeDonnieDude 10+ year member]

wont work

why? cant fit a big enough coil? wont work well due to motor strength/design?

 

[PioneerSPL1990 10+ year member]

idk about 4k all day but you can fit some nasty 8 layer coils in there, ill PM you, i got some coils that will take a beating.

 

[SoCalBean420 10+ year member]

Get yourself a 4" coil motor like trf and you be set.

But to answer your question, I would say that the 3hp motor is good for about 2500 rms.

 

[SPLaudio 5,000+ posts]

no sub will handle 4000 clamped watts for 20mins and be eff.

alot of 8 layer coils will fit.

4k for 30 sec yes

4k for a song or 2 no

 

[Kross6622 10+ year member]

My guess they named the motor 3hp because its 3 horse power. Converted to Watts its 2,237watts. Not sure if it has any relation but I think it does.