After my house being hit by lightning, through my satelite, I would recomend some type of protection no matter what it cost. My damage was over 10k in electronics (stereo & computer) luckily no fire. I use Panamax products currently but I have read great things about some of the Monster products. Conditioning is included as a bonus in most of the more inexpensive units. I use a Panamax 1000 that would fall in your price range, It has been discontinued "I think" but there are still plenty available. Give Panamax a look IMO they are comparable to what you have listed.
I need help choosing a power conditioner.
I am interested in adding an inexpensive power line conditioner to a second system that I have in a spare bedroom. Stereo only, no video. Budget is $150.00 used and some recommended contenders are, API Power Pack 2, Adcom Ace 515, one of the various Monsters, 2500 maybe. Degree of system improvement is the only criteria and I would appreciate input from respondants with experience with at lease two units so that I can get a contrast. Please feel free to add other models into the mix. Your knowledge and guidance are greatly appreciated.