I have to admit I haven't heard those speakers but they aren't going to put out much bass with a 4" driver and the surrounds being only 85dB efficient and 8 ohms will take some juice to push and the others aren't a whole lot more efficient. I don't know if the specs included the sub but there's no way those speakers play down to 20hz as the spec said. It also takes a lot more power to recreate bass, the sub is only rated at 100 watts. I may have missed it, did it say why these were $699. when supposedly retail was $2k? I may be wrong but from the ad it just looks a bit suspect to me.

I was referring to recessed into the ceiling when I suggested "ceiling speakers".

If you are buying online be sure you have a return policy and watch for restocking fees. You want your dad to be happy with his system. I'd recommend keeping with established brands of equipment.