ryws, if for SQ, yes, it is a very good amp to power up especially your components. as for your sub tho, most 4ch amps are not designed to take the load of whacking a sub, moreover, this red 12" sub is DVC, 200W RMS at least. Hence, the amp may not be fully utilizing the sub's maximum potential, but in terms of SQ, i think it shud do the job.
Cheers