Reminder: how to tell current from an amp's specs?

I can't believe there is even a debate about this. It is well known that driving a speaker that has a variable impedance curve that dips below 4 ohms with an amp that cannot produce the appropriate current at the low impedances will change the frequency response of the speaker. It's a well documented fact. If you can produce evidence to the contrary please do so.

If the amplifier is able to act as a voltage source at less than full power then the contray is certainly possible. For example the Osiris amplifier that @akg_ca mentioned can't double power at full power as load impedance is halved, but at lesser powers it can. In a case like that when the current demand is exceeded, rather than changing the FR the amp will simply clip.

@8th-note I’d just stop here if I was you as it will not end well.  You’re simply outgunned here.  

There are "facts" and there are FACTS.

Personally, I appreciate a civil exchange. I've found this thread to be quite edifying. 

P=IE.  Power = Current * Voltage.  

Problem is that amplifier rail voltage varies and is seldom specified.  

Pick an amp that increases output as the resistance is lowered and is stable at loads as low as possible- e.g. 2-ohms.