Not sure for power conditioner my amp or not.

After you have experimented with the power conditioner vs directly to the wall outlet (which is the only way to answer your question) let us know what sounded better and why, please.

I plug my MC500 amp directly into my shunyata power conditioner. I’ve tried it both ways and cannot tell any difference. I’d rather have clean power and protection. 

With a big honking transformer power supply, I would just plug it in. Toss a ferrite on the power cord if it makes you feel good. I have a whole house suppressor which if you can do, is highly recommended.  If not, I would look at the amp schematic and see if they properly did any surge and RF internally. It amazes me how any product above the price-spec only market fails to do proper AC input design. 

If you have a toroid transformer, a DC blocker is a good idea. Nothing wrong with a reputable power strip with RF filtering and surge suppression.  I have used Iso-Max, Trip-Lite and Monster strips. Reputable, actual engineering. 

None of that is going to make it sound any better. Just safer. I have not lost any audio to surges, but two stove control boards, two TVs and one computer.  My audio is all old school with transformer inputs except my new DACs

@smoorenc

Your post represents what I love and hate about the internet. I love it because your question is clearly communicated and others with relevant experience donate their time and expertise to answer your question. The negative is that you are the one with all of the equipment, including your ears, to answer the question that you pose. To rephrase your post…. I trust the ears of others that I don’t know, more than I trust my own ears, so tell me what to do. My power amps are plugged into a very expensive conditioner. I also have a whole house surge protector. I live in an area with frequent lightening storms, so the isolation is important. My suggestion to you is to decide how important surge protection is to you and then trust your ears more than people that you don’t know. Try answering your own question by listening. If you can’t tell the difference, then great. Go with the added surge protection.

I love the “edit” function, because one other thing entered my thoughts.  Maybe, your question wasn’t stated clearly.  Maybe, you are stating that with a short A/B you could not hear a difference, but you would like to try a longer comparison and wanted suggestions as to what to listen for and perhaps, what to use as source material…ie….music.

If I lived in a location with lightening I would probably install someting like this on the power to my equipment.   The dowside is you have to start everything up every time you isolate it.

https://www.amazon.com/SIEMENS-General-Safety-Switch-Non-Fusible/dp/B07PPX5K8C/ref=sr_1_5?hvadid=634142430941&hvdev=c&hvlocphy=9031287&hvnetw=g&hvqmt=e&hvrand=15039701867404092636&hvtargid=kwd-18819807243&hydadcr=25940_13574254&keywords=3+pole+disconnect+switch&qid=1694867119&sr=8-5

I use these on all my 3 phase equipment in my shop.

Jerry