yes more than enough. As always keep voltage above 12, below 15.5 and avoid clipping, the light on the amp does work. If your below 14.4 by the time you begin to clip, a light clip will be fine for daily. If you have great voltage and staying over 14.4 near full tilt, keep the clip light off.
These amps are very effecient if you keep them below clipping as in 90%+ effeciency, they sip current. They are also really tiny, can play fullrange if you need that for an install and very cheap.. Downsides, you can't push them too hard, so keep voltage between 12 and 15 and watch the clipping and you want to mount them to a solid surface, def NOT the subbox. Also the fans can be a hair noisy if you in a SUV, but nothing worse than most, just wish they only ran at high output intead of all the time, that's the price you pay for the size though.
I also agree with people who said get a little bigger than what you think you need.. You want to stay away from clipping and they are effecient. Better to get a little bigger amp and never have to clip it and even keep gains down.
Anyway I've ran one in my car for a few months and have read probably every thread on 3 or 4 major forums about em, any other questions I can probably help field it.