Battery Power For Audio - EcoFlow Pro

When looking at solar and battery supplies for audio, there’s something you will want to remember.

I researched these a few years ago, and the very best inverter specification I saw was 2% harmonic distortion. Utility regulation in the vast majority of the US sets 2% as the maximum harmonic distortion for power delivered to your home by the utility. So it’s quite likely your source will be cleaner coming from the utility rather than solar or battery. (I did not research systems such as the Stromtank to see whether their inverter specs were any better.)

What is responsible for “dirty power” is almost certainly nothing occurring outside the home, but rather what happens in the home. LED lights, motors for heat pumps, air conditioners, refrigerators, etc., microcontrollers (these days that can be anything from a toaster to a thermostat) will all put noise on the line. And of course there’s the wiring for your audio system and any ground and noise loops that may be involved. The usual safety measures involving sacrificial MOVs can also be sources of noise.

There are ways to be safe and “sound” (as in good sound) that don’t have to involve multiple tens of thousands of dollars. There are used isolation transformers with great specs, separate circuits for audio systems, optical fiber, safety equipment such as that made by ZeroSurge and others, that won’t break the bank.