Looking to buy a power conditioner

I'm on the Underwood Hifi mailing list. Seems like there might be some good ideas to start there...

https://www.underwoodhifi.com

They might have some slightly used units for sale.

I can see the wisdom in buying pre-owned hifi equipment. But, for some reason, I hesitate to purchase pre-owned power conditioning gear. Seems to me that if there was anything I'd want to have the full service life and protection of in new condition, it would be in power conditioning.

An exception to this might be if I knew the previous owner, who was upgrading because his equipment had outgrown his power conditioning gear. 

Perhaps I could be convinced to change my mind about this. 

Good Luck.
T.

I recently bought my first (used), an Isotek EVO Sirius. It has helped (e.g. seemingly lower noise floor), though the most obvious difference was in video. In fact, the difference was shocking!

I purchased a Furman it reference 15i brand new from an eBay store for a huge savings. Boyton-studio. Get a price from him and it'll be a lot less than anywhere else. I have no affiliation with him whatsoever. 

if you have a dedicated spur I’d go passive. I have very good results in SQ from an Acoustic Revive RTP-4 with their reference power cord

I bought 2 of the new Audience Forte power strips with the free Forte power cord (the CableCo web site has this deal. One of these strips is extra inputs for my filled up Torus RM15. The other one is for the family room gear. I am not sure if this thing helped the audio but on the video side both TV I have hooked up to it have a much better picture.

I trust Audience gear and just bought it without much research. Very happy with the purchase.

Audience Forte V8 Power Conditioner (thecableco.com)