I live in Saskatchewan, and I have 2 type-r 12's in my trunk.. what I do is just lay off the subs when its really cold. If its a -15 degree day or colder, leave the bass down so low that you can barely feel it. If it's between 0 and -15 go easy on them, but let them warm up for 20 minutes first, by playing music and gradually increasing the volume of the subs to warm them up. If its melting, go hard! I pump the R's at 720w rms @ 1 ohm as loud as they go and its like +1 Celcius here. Also, I find working outside to be a real ***** when its cold and dark //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif