What is the max watt amp i should use for my 8' polk subs?

The super MTX Thunder7402 car audio amplifier is designed with a long list of convenient features and technical innovations that make this amplifier a home for any car stereo system. The Prizm EFX feature of MTX lets you match the colour of the display according to your vehicle and also lets you adjust its light according to the pulse with the music. This 2 channel MTX Thunder7402 car stereo amplifier delivers 100 watts of RMS to each of the channel of your full range subwoofers. You can also bridge the amplifier with a single channel amplifier to deliver 60 watts of RMS to your speaker system.