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MassDropFan
46
Feb 8, 2014
Regular Massdrop customer so not trying to cause trouble. Question: How is this better than UPS or UPS/Conditioner combos that have batteries built in and puts out sine wave power? Examples such as:
http://www.amazon.com/APC-BR1000G-Back-UPS-Uninterruptible-Supply/dp/B0038ZTZ3W/ref=sr_1_4?ie=UTF8&qid=1391914658&sr=8-4&keywords=power+protector+ups
http://www.amazon.com/APC-J25B-8-Outlet-Conditioner-Battery/dp/B003GSLL2E/ref=sr_1_9?ie=UTF8&qid=1391914591&sr=8-9&keywords=power+protector+ups
There are a bunch of others but I just randomly selected a couple. Thanks.
Tristor
97
Feb 9, 2014
MassDropFanI'd suggest reading my comments earlier in the thread since I answered this question previously. If you get a proper UPS with AVR that puts out a true sine wave signal rather than a stepped sine wave, then it would technically be equivalent or superior to this, assuming that the output ripple characteristics of the UPS are favorable. Good UPS units cost a lot more money than power conditioners though and a good chunk of that is the cost of the battery. If you don't need a battery, buying a UPS is probably a silly idea, but it's totally your choice.
Neither one of the units that you linked though actually do true sine waves. From the first link in technical specifications they even explicitly state this: "Waveform Type Stepped approximation to a sinewave" In the second link the specifications are not nearly as forthcoming, but a quick Google search leads to the answer on APC's website at http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=J25B&tab=models and again we see "Waveform Type Stepped approximation to a sinewave"
If you want QUALITY power output from a UPS-type device, you need AVR and true sine wave output. If you're just looking to ensure that power is available from a battery source when your mains goes off, then this is less essential. But in audio applications power quality plays a huge role in the noise floor of your signal.
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