i cant really answer that about the spider. i have no idea. its hooked up right now in a 1.25 box tuned to 38, lows are just insane, excursion videos coming tomorrow. i hear that noise the noise everyone is talking about. a bottoming out type of noise, more mechanical noise. its powered off of about 1800 watts for the time being, but its not staying in my van for long, its going to my gfs car. i have big plans, no room for tens.