OK, I’ve read this thread and here are my thoughts, simple as they may be. A 100W capable amp and a 200W capable amp will output the same amount of bass at the same wattage. Notice I have used the word "capable," as it is the "maximum" wattage the amp is claimed to produce. If each amp is putting out 25W at a particular point, then the bass output would be the same.
Now, the capability issue comes into play generally with musical peaks, and/or low sensitivity or low impedance speakers ... it is in this area where wattage capability becomes important. A 200W amp will better address those issues than a 100W amp, and will provide more headroom when and if needed. Is a 200W amp preferable to a 100W amp? It depends on several factors. However, if one listens at low levels mostly, then the difference in wattage becomes somewhat negligible.
Nonetheless, I agree with both propositions that: (a) amps outputting the same amount of wattage at a given point in time will output the same amount of bass; and (b) a larger, more powerful amp generally will provide better control of a speaker IF the additional wattage is necessary for musical peaks (i.e., high volume listening), a speaker with low sensitivity, or a speaker which is not stable into a relatively normal impedance (i.e., 8 Ohms). Them’s my thoughts, no flaming, please.
