Depends on which w3's you have, dual 2 ohm, dual 4 ohm, or dual 6 ohm. Not sure about the autotek, but although the 500/1 would work well with dual 6 ohm and dual 4 ohm subs you might be pushing the stability envelope a hair with 3 dual 2 ohms drivers(1.33 ohm mono load). That amp is supposedly only stable to 1.5 ohms. 1.33 ohms might not be too bad, but its not within JL's stated specs.