I found the same thing and everything I used it on improved, even amplifiers mad a difference as the PP units use the battery backup to also handle peak demands so it can usually output a lot more than the actual line voltage/amperage. Amazingly when I had a Mark Levinson 433, and AV Preamp, sources etc AND my 70" Sony XBR RPTV on it even at high volumes my 700 unit read that I was only using low 80% of it's ability!!!
BTW They make a huge difference in video displays as well!!! I didn't believe how much good power improved the video!
BTW They make a huge difference in video displays as well!!! I didn't believe how much good power improved the video!