Again, an incorrect assumption.
I repeatedly see references to 70 volt products introducing loss and not being high fidelity. I've tried to figure out how to convince you that it is product selection, not the technology, where the loss is introduced! I'm thinking I should not continue to care. That's more 70 volt jobs for those of us who know about it.

One last attempt: yes, a market exists for crap fidelity 70 volt audio. It's the supermarket ceiling, the elevator, the hallway, where people want sound but have no interest in spending another penny to have high fidelity.

The fact that this market exists does not mean that high fidelity 70 volt equipment does not exist.

If the only 8 ohm speakers you ever heard were in portable radios, you'd think there is no high fidelity 8 ohm product. That's about where most of us are in relation to 70 volt: we've never heard better and we've not seriously looked into it.