I would guess not, unless you habitually listen at unusually low levels or the amp has unusual dynamic headroom. But the only way to know for sure is to measure the levels at which you personally listen, then it's a straightforward calculation. If you use an analog Rat Shack meter, add 10 dB since it doesn't read true peaks (the digital one seems to, though I'm not aware of any confirmation).
Fortunately, this is something that can be done with measurements, wouldn't want to get an amp only to discover that it's too small.