The PS Audio Power plants have a scope and analyse the incoming power. I would really like to see the THD numbers out of the inverter. the sine wave coming off the grid in San Diego has 4-5% THD.
Using battery power to go off the City's power grid
I'm using a Bluetti AC200MAX 2,200 watt expandable power station to take my system off the city's power grid. It runs off a lithium ion phosphate battery with a 4,800 watt pure sine wave inverter. My total system only takes about 450 watts so I have never heard the fan kick on - it is totally silent. The music comes from a completely black background, with a huge soundstage that sounds very natural. I know that Ric Schultz has talked about these types of setups and there is a very expensive Stromtank battery system that is marketed to audiophiles. Anyone else tried this type of setup in their audio system?
Here is a link to a review:
Showing 5 responses by carlsbad
You should realize that the power coming into your house qualifies as "perfect sine wave" yet it has (at my house) 4-5% THD. I am familiar with PS Audio power regenerators. They analyze the power in with a scope and give you a THD reading for the incoming power. It would be extremely helpful if someone could power a PSA regenerator from some of the highly touted battery systems with "perfect sine wave" inverters and publish the actual THD numbers. Until then I'll remain skeptical. Anyone who calls their power "perfect" is pretty much by definition lying. But modern marketing practices allow it. Jerry |
@sns Power out of my PSAudio regenerator is always 119.9 vac. voltage in is generally pretty good but this summer with high air conditioner use in SoCal it is often 115vac. I've also seen 122V. I too have a monitor plugged into an outlet on the counter. Tube amps love the same voltage every day, so I'm glad I got the PP10. Jerry |
@theaudioamp I suggested the PS Audio unit because that is something many people here own and the test data will be consistent. The level of electrical knowledge here is generally not very high so buying test equipment and using it competently is not likely a plan that will lead to useful data. |
@ricevs Good that you can hear the failings of the interters you are testing. About your comment on PS audio, I don't understand what you are saying or else you don't. Inverting is changing DC to AC. The PS audio rectifies the DC from teh wall and the converts it back to AC, the definition of an inverter. Are you trying to point out some other subtlty? But I say it is the quality of the inverter, the quantity of amperage, and the low output impedance, that makes a quality power supply expensive. Jerry |