is this pure sine wave output???? It would be nice to highlight if yes or no.
1278186
It is not a pure sine wave inverter. That being said, it will operate 90% of anything you would want to run with no problems.
95291
If you're 100% sure it's not the source, then yes. I don't have hum unless I am on high volume but I have had a lot of source hum from my sound card. So check that out before shipping it off.
1024163
Hi Glen ,This is not a pure sine inverter.Please read the additional facts below.The inverter have three Power Index1.Marked power2.Peak Power3.Long time working powerNormal Output Power means the Peak power.Peak power is the moment Maximum power when we start the electric equipment.this peak power might be 1.5-3 timesDifferent electric equipment have different peak power. We need to know the rated power (Average Power) before we choose the Electric power supply ( like the inverter or battery). The power supply is 1.5-2 times. Electric equipment power,special electric equipment will need 3 times of Electric Power.General Average Power is counted according to 72% of peak power.This accounting methods usually is for small power electric equipment. Hi Glen ,This is not a pure sine inverter.Please read the additional facts below.The inverter have three Power Index1.Marked power2.Peak Power3.Long time working powerNormal Output Power means the Peak power.Peak power is the moment Maximum power when we start the electric equipment.this peak power might be 1.5-3 timesDifferent electric equipment have different peak power. We need to know the rated power (Average Power) before we choose the Electric power supply ( like the inverter or... » Read More Hi Glen ,This is not a pure sine inverter.Please read the additional facts below.The inverter have three Power Index1.Marked power2.Peak Power3.Long time working powerNormal Output Power means the Peak power.Peak power is the moment Maximum power when we start the electric equipment.this peak power might be 1.5-3 timesDifferent electric equipment have different peak power. We need to know the rated power (Average Power) before we choose the Electric power supply ( like the inverter or battery). The power supply is 1.5-2 times. Electric equipment power,special electric equipment will need 3 times of Electric Power.General Average Power is counted according to 72% of peak power.This accounting methods usually is for small power electric equipment. « Show Less
117824
it is a pure sine inverter. The Flicker is caused by the deadtime at the zero crossing, adding a small resistive 100 watt load smooth's the output to where the flicker goes away.
1489777
Stereo & TV no, only on ceiling fans. The reason being because it is square wave and not sine wave.
424567
Square IS modified sine wave if you are looking to power sensitive equipment or power with out noise then you want TRUE sine wave.....
1942432
I got the below from Tom's Hardware from someone who asked the same question and the answer they received from CyberPower: "I received the following answer from Pietro Boggio, Senior Technical Support Specialist at CyberPower: "No digitally created wave can be a true mathematically curved analog wave. But the number of digital steps used to create the wave can be great enough that the electronics used in even the highest efficiency computer power supplies are unable to distinguish them from an analog wave. The total harmonic distortion of the output on battery is under 2% which means the output of the UPS is closer to a mathematically ideal analog wave than the powercoming out most peoples walls. "These units were created specifically for the needs of computer users with Active PFC power supplies. We put PFC in the model name to highlight the fact that these units are compatible with Active PFC Power Supplies." I can tell you I have the CyberPower CP1000PFCLCD PFC Sinewave UPS 1000VA 600W PFC Compatible Mini-Tower and I've had zero problems with it, my power has gone off several times since I've owned the unit and I have lots of sensitive equipment plugged into it.
848539
All generators Champion makes use a true sine wave. It does not use square or modified sine waves. When it has a lot of THD those waves grow erratic spikes on them but they still maintain their waveform
1561188
The only way to get a pure sine wave is to have a generator or plug into your house
996797
I don't use devices which allow my making that comparison, however just listening, I'm satisfied. The frequency response seems flat with no noticeable distortion. I don't feel I'm compromising sound for convenience.
75708
no it is not - I have had mine for only 1 month, but what you describe sounds like it is defective so contact your seller. sounds like you may have gotten a bad unit.
1872959
When I purchased mine I got the answer to that in the literature that it came with as a modified Sine wave. However unless you are using this for medical physics the difference between the two is minimal. I hope that helps. Mine has worked fine for running a small refrigerator and TV while we camp.
2043108
I have this inverter, and my understanding is that it is pure sine wave. I use it to power my entire vacation house on a Caribbean island with no troubles, save for the fact that the vacuum cannot run at the same time as anything else.
2216857
Pure sine wave will always be the default recommendation, especially for electronics. However there is generally a big cost hit with pure sine wave compared to simulated sine wave. For a unit like a power supply which is quite robust in design, when talking about the quality of power input, a simulated sine wave UPS would be acceptable to use. It is certainly much better than exposing the PSU & your PC to power brownouts.
1539335
Some electronic ignitions on the furnace won't work without a pure sine wave. Better check first.
1436887
I have never seen any sine wave interference with any inverter I have ever used and this one is no exception. I have used it to charge my laptop while driving and listening to the car radio with no interference. I do not have a tablet, but it also has not interfered with my smart phone which uses the same and similar technologies as a tablet.
1286416
It's a pure sine wave output, so there's no difference in the output. the second back up wouldn't know the difference.