Thanks – I have no idea what “Noise Floor” is. On the older iPhones you could plug an adapter into the 30 pin port and get “line out” un-amplified audio, which was perfect. iPhone 7 – with new type of “jack” You cant do that anymore. I guess the Same Holds true of you run audio out from a p.c. or mac from the headphone jack. No “line out” setting, so Volume all the way up?
Thanks!