Power line filters will limit current delivery capability to a certain extent because of the series inductor in series with the AC circuit. Power line surge protectors will not limit current in any way because the surge protection element (usually a metal oxide varistor) is in parallel with the AC circuit rather than in series with it.

The overriding concern is the current rating on the unit you are looking at. It should be at least capable of passing 15 amps which is the capacity of the normal circuit breakers in your house.

In general, I avoid using power line filters with power amplifiers that have significant power requirements (basically any multi-channel home theater amplifier) - using only surge protectors. In low level equipment like preamps, DVD players, etc, a combination power line filter and surge protector is the best way to go because these components are most likely to pick up RFI/EMI interferrence which could degrade their sound.