Does this really put out a pure sine wave?
1798464
I used a 'scope to fine adjust the frequency and seem to recall it was close to a pure sine wave, quite clean power. It powers all our electronic equipment without a problem. I adjusted the frequency using the peaks of the waves to stop our UPS's from complaining
1798465
the company that makes this is out of business. Mine arrived with a damaged generator, and no warrantyI had to buy another one
1798466
Not sure about that Enoch. What I can tell you is that several of the circuits in the house have electronics (Flat panel TV's, AV receivers, computers etc) as well as UPS units. When I first tested the unit, it worked fine but the UPS units went crazy - beeping and b*tching about the auxiliary power. I checked the output using a KILL-A-WATT meter (great investment, by the way) and found that the cycle (Hz) was running a bit low (like ~59.something). You can adjust the Hz by adjusting the idle/governor (do a Google search on this unit). I put a load on the generator and adjusted the idle/governor to remain as close to 60.0 Hz as possible and no more problems. None! We recently had an outage and had the generator on line for about 4 hours. Not one peep out of the UPS nor did we notice anything unusual on the computers or television. My original opinion of this generator remains the same. It is a great value for the price and provides us with all the power we need during outages.
24412
Use a SUM-PRO. They ARE designed for sump pumps. Mine runs my sump pump for more than a day (on and off). Do Not use a Sum-Pro for anything else. It is NOT a sine wave, but motors don't care, though the pitch changes.
543008
I am afraid the answer is no. This is a pre-amplifier, therefore it does NOT amplify the source. In fact, in my experience, it even weakens a bit the source signal (which I think it should not do either, but it happens). Otherwise, it is an excellent device, solid construction and well featured. Hope this helps.
849295
Are you using an inverter, I had the same problem, it will only heat when using a pure sine inverter
955390
It is modified sine wave but it is a very good quality wave and can run appliances cheap ones cant.
1442686
It just amplifies what goes into it, the frequency response is pretty flat unless you change the EQ switch, and even then it's only a very slight increase in the 20-40 Hz range.
1599167
Thanks. I was afraid of that. Sine wave sweep? Spl meter? I just want to turn down the treble a bit.
1867823
Hi Don, There's really nothing noteworthy to hear - it simply amplifies the tone of an instrument signal, so it will sound like whatever you put into it (a clean guitar, clean bass, etc).
1136313
This is a very high quality product, delivering pure sine wave power. We use it to drive very sensitive medical equipment in our van. It powers a cough assist and suction for our son with muscular dystrophy. If properly installed this will do everything you'll need.
1539335
Some electronic ignitions on the furnace won't work without a pure sine wave. Better check first.
547800
I severely doubt it, because the sine waves would NOT be in synch and that would play havoc with any electronic devices attached, changing the RMS voltage outputs. It would create very dirty power. If you want to do this, you should contact the manufacturer to see if there is some modification they can recommend. Otherwise, just split the outputs to different circuits, but be very careful to NOT share a common neutral, and provide a separate ground as well.
12399
This unit has excellent frequency stability and as far as generated harmonics are concerned I did not detect any of any measurability. It has an rf frequency chip from Japan that has rave reviews. So you shouldn't have to worry about it.It produces very high fidelity stereo sound and I would recommend it to anyone who'd buy it. I hope this is helpful to you. Regards, Greg
754036
Interesting idea. Two things to consider is although this unit has a wide range it is incremental not continuous (decimal values) which may not give you resonants (natural) you may want. Also I am guessing you will need to amplify the output to accomplish a level for the effects you need.
1988274
We have done two tests and can confirm that indeed you can trust the sine wave for your electronics. First we plugged our cell phones and computers into the receptacle and found no issues. Secondly we used an ocilloscope and found no raged edges on the wave. In fact we then tested the wall outlet and found that the power from the wall was not as clean as the IG800W.
1561189
If it dos'nt say Pure Sine its probably not. However the pure sine is marketed as safe for delicate electronics like tv and computer. And you pay for that. Nevertheless, lately manufaturers are aware most buyers want it to be safe. My opinion, if its says it is safe for tv and such, than it probably is. You can also use a surge protector.Another way to go is buy a smaller pure sine at less price and put it next to tv or computer. You won't have to turn on the big inverter, saving battery power. The bigger the inverter,the more battery power it will use to convert.
548857
Modified Sine. So it's not as good as a pure Sine. Depends on the electronics you're trying to use. Laptop or PC should be fine. High end test equipment, medical devices, you would be better with pure sine.
1235603
It runs on a true sine wave with a total harmonic distortion of 3% to 6% at full load and has a voltage variance of +/- 5%.