How i fixed my Orbi Wifi woes

Just curious, when you observe the noise level on the network (from a computer, as I don't think iOS can show this), do you see any indication of this interference?  I ask, because when I encountered drastic speed problems on the 5ghz band, which I eventually traced down to a Vizio soundbar transmitting to a wireless subwoofer, compared to the upper 5ghz channels (which were almost always -96) I saw higher interference on channel 36 (around -80 to -90).  This has improved a bit since getting rid of the soundbar (now averages about -88), and speed is now perfect, but still I was surprised that something with such a debilitating effect on my network speed did not register more noise.  I don't know if the still higher noise on channel 36 is an indication that there is something else in my home transmitting on 5ghz or if it's just "background noise", but regardless, shutting down the rogue soundbar yielded a huge improvement in throughput, yet only registered a couple of dB of noise (at best).