hispls 5,000+ posts
CarAudio.com Veteran
not sure where you’re getting that they recommend 500 from
IDMAX | imagedynamicsusa
www.imagedynamicsusa.net
No, or not significantly. A coil is a coil and it's likely ID already uses a good quality American made coil, one that's sized appropriately for the gap, and one that gives the expected performance. There's no magic fairy dust that (insert meme parts re-seller here) is going to sprinkle on a coil to make it survive too much heat. In my experience the only thing that doesn't really matter is the cone but for suspension and coil you absolutely must use the exact same thing if you want the same performance.I wanted to see if they could increase the thermal capacity.
IDMax is a fantastic sounding woofer and will really shine if you're working with a 500-600W amp. If that's not going to be loud enough and you need to get louder with more power as opposed to sacrificing more space you need to decide how much power (and still how much space you want to use) and work from there. My rule on power handling is if you have to ask and/or you absolutely don't care if you blow stuff up do not try to run more power than recommended to speakers.
Keep in mind that in perfect conditions (ie. never going to happen in real life) you would gain +3dB from doubling power for reference that's about two clicks on the typical volume knob on a head unit. Bear that in mind when you consider what it all is really worth to try to jump into a 1200W amp and 1200W capable woofer.