The bottom line is you need to deliver plenty of power reserves to your amp to allow it to make good bass response. It isn't as simple as supplying the nameplate current to the amp.
The second half of the question, which is often debated, is, do you need to "clean up the power" to be 120V with "no noise" in it. Many think that isn't necessary since the power is promptly rectified in the amplifier. Others think it makes a huge difference.
The problem I have is when the second effort affects the first. If a power conditioner restricts current availability to address spikes needed to make good bass, it affects the sound.
Everybody wants to sell more stuff. But if a power conditioner comes with a 14 gauge cord on it, then I would suggest passing, it isn't designed to provide power for the spikes. The exception would be if a power conditioner has provisions to store power internally to address the spikes. Need to makes sure impedance doesn't limit the ability to address fast spikes.
Bottom line is, putting anything upstream of an amp except a heaver (10 awg) power cord has a lot pitfalls that for sure some manufacturers don't address. Do your research. If possible, demonstrate the conditioner in home and have someone help you with a blind test vs plugged directly into the wall.
Jerry
