I have heard on a number of occasions that the RS meters, especially for the lower freqs are a tad bit off on accuracy, not sure, just hearsay, please Axiom police don't whip me, thank you sir can I have another.....

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85