Im running a Sundown on a Q at 1ohm, I doubt Id run it at .5 ohm. It could handle it, but IMHO it isnt worth the stress of the driver. Remember the Q is rated at 1000rms for a reason. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif