yes I've read the guide but it didn't really recommend any specific models, I need something more to protect my equipment and filter noise then for back up but 1 or 2 minutes of back up would be nice also. The power in the area I'm living in tends to be stable but we have had the occasion black outs and surges. The only things I'm plugging into this would be my computer monitor digital piano and maybe a mixer or amp on occasions. I would like to stay under 100 but I can spend more if its necessary, Any advice or help would be greatly appreciated