N48 BTL N2 magnet operating temperatures

[nick_19 1]

Just out of curiosity, what is the operating temperature of the magnets in the BTL N2. I'm sure Fi researched this, but I was just curious. From what I can gather, the operating temperature for ferrite magnets is around 300*C, but the operating temperatures for neodymium magnets is quite lower (source). What grade exactly is the magnets used in the N2? As in, is there a letter following the "N48"? I don't know exactly how hot the magnets get, but I read that voice coils can exceed 150*C. Thanks!

[NDMstang65 403]

Which is why that biiiiiiiiiiiiiiiiig hunk of aluminum surrounds the coil and not the magnet material itself

[SubSam 21]

The heatsinks are monstrous on the N2. When mine was inverted I ran it hard for about 30 minutes, felt the motor/heatsinks and expected it to warm my hands... it was cold. It was about 45 degrees out, but I was bumpin hard at idle with the car nice and toasty

Since then I flipped the sub around, so I can't tell how warm it got, but I did some pause burps and 30 sec music runs at 3200 watts off a SAZ-3500 with no issues. I'm going to run around 3k for NESPL, don't foresee any problems... I'm sure I could run 4k+, but I'm saving that for my world record run for stock class with a N3 woofer

[SubSam 21]

but what exactly does ""maximum operating temperature" even mean? The magnet doesn't lose magnetism until like 500+ degrees, that is really the important number right? The magnets could never get to 500 degrees. Is that the curie temp?

[masterofallbass 0]

The heatsinks are monstrous on the N2. When mine was inverted I ran it hard for about 30 minutes, felt the motor/heatsinks and expected it to warm my hands... it was cold. It was about 45 degrees out, but I was bumpin hard at idle with the car nice and toasty

Since then I flipped the sub around, so I can't tell how warm it got, but I did some pause burps and 30 sec music runs at 3200 watts off a SAZ-3500 with no issues. I'm going to run around 3k for NESPL, don't foresee any problems... I'm sure I could run 4k+, but I'm saving that for my world record run for stock class with a N3 woofer

Yeah Fi realy did there homework on there new btl line up.