Anyone know why some MT motors are black and some chrome?

[PHATBOi 38]

Anyone know why some MT motors are black and some chrome? Thanks.

[Duran 387]

US made vs. China made probably

[PHATBOi 38]

Heard the black ones have more cooling, and a slightly larger gap for more power handiling.

[PHATBOi 38]

ttt

[Duran 387]

Heard the black ones have more cooling, and a slightly larger gap for more power handiling.

That cooling philosophy is backwards, you want a tight gap to increase air velocity.

[Julian 641]

a loose gap is to accommodate for daily scenarios so the coil has some room to wiggle when the subwoofer becomes non linear.

[Duran 387]

Coil rock = bad for tight gap

[Julian 641]

Coil rock = bad for tight gap

In other things it's a good thing

[PHATBOi 38]

Yeah that makes sense cause I read somewhere the black ones where built for daily. Hence the better cooling and wider gap. Just trying to find out if anyone knows for sure. Seems like no one has even really heard of the black ones.

[ford302redneck 15]

I've always wondered this myself.

I know the chrome are the original design, and the black ones came after US Amps bought RE.

[USAMPFREAK 4]

Black motors had the gap enlarged by less than .25 mm to help with coil scrub. And that was only on the T-Yoke.

The MT will still take mega power and is now daily usable. We are currently working on a new 4 inch coil MT.

[PHATBOi 38]

Black motors had the gap enlarged by less than .25 mm to help with coil scrub. And that was only on the T-Yoke.

The MT will still take mega power and is now daily usable. We are currently working on a new 4 inch coil MT.

Thanks for the reply. I am waiting on my recone from David at PSI right now, then my builder is going to build me a MT/PSI Hybrid 12D1.4 to run off my AP18001D in this:

Can't fuckin wait!