I have an APC H10 power conditioner which controls/regulates the power to my AV equipment (wide screen HDTV, Cable STB, Moxi, dvd recorders and Sony home theater receiver). Because of the number of power outages I get, I want to add a Cyberpower CP1500PFCLCD 1500VA 900W UPS (an interactive, pure sign wave device) to that mix. Even though the Cyberpower UPS provides AVR, my understanding is that the AVR it provides is not as good a quality as the AVR in my H10. In fact, a Cyberpower rep told me the exact same thing saying: “A power conditioner would keep the voltage very steady at 120, and focus on keeping out line noise, which this unit would not necessarily do”.
For this reason, (and because I already have the H10 and wouldn’t want to stop using it otherwise) I would like to use the H10 in line with the UPS. Is it possible to do this? I keep finding conflicting information regarding this during my research. Some say that they can be used together without problems, others say that you shouldn’t connect the UPS to the H10 power conditioner output since doing so would cause the UPS to go offline when it shouldn’t.
Still others say that you should not plug the H10 into one of the UPS outlets since it could have problems accepting the simulated sign wave output of most less expensive UPS’s. APC for example says that connecting a non-APC surge protector to an APC UPS will void the UPS warranty. This sounds as if it might be a marketing oriented statement from APC however since it would force you to buy their own surge suppressing products. Also, I know that the San Francisco fire code says not to connect a power strip to another power strip (which I would presume would include a UPS). I would guess that this is because of the risk of adding too many devices to a single circuit and overloading it however.
It seems to me that since my UPS is a pure sine wave model and Cyberpower seems to have an excellent UPS, I should be able to use the the H10 along with the UPS as long as I made sure that the wattage loads on both devices remained well within specs. Furthermore, if what I want to do can be done at all, the best arrangement seems to me would be the following since it would provide the cleanest power to the AV devices:
Wall outlet -> UPS -> Power Conditioner - > AV equipment
Does anyone have any comments/thoughts about this or even better, have any experience with actually doing it? One last comment I will make is that APC has some combination power conditioner/UPS models but they only provide simulated square wave outputs on all models and no AVR on any but the most expensive model.
Thanks in advance for any feedback.