Power amps into surge protector/Conditioner or DIRECT to wall? Final verdict?

@aberyclark, I believe that blanket advice was good, absent context or other additional factors being mentioned.  Without some knowledge of the equipment, an amplifier could literally ruin and fry a low-end surge protector (picture smoke, I've seen it), even electronically controlled, due to high current draw.   Looking on the back of your equipment might reveal 1300 watts (or 1300 VA rating via inductive, capactive measure) or higher.  That's nearly a hairdryer.  Any other equipment would be fine to plug-in, e.g. the pre-amp, DAC and even TV since those are now minimal draw.  This equipment still might not protect against a lightning strike, but an intermittant surge would be okay.  Direct lightning strikes are very difficult to guard against.  When unsure, just unplug EVERYTHING.  Even in the off state, a lightning strike will fry everything along a path if plugged in.  BTW, the fuses are simply to protect equipment from its own internal failure or as a wide swag protection against external inputs out of specification (e.g. speakers).  Lightning will not care about fuses as they either will not react, or not quickly enough, or it will just arc over.  Grounding is also meant to either protect a user or protect equipment but never 100% guaranteed.  GFCI is also only 99% effective.  All of this is why, when weirder things happen, you can still have electrical fires which is why arc-fault interrupters are now code in addition to GFCI requirements in various locations in a residence.