Balanced input of PA5 II is 2.6V and 5V is about 6db in the red. But you can use the volume control on the E70... Just keep it always lower than -6db.Received my Pa5 II plus version on Monday. So far made a little comparison with LA90 and can't hear any difference. No scientific test of any kind, can't dB match levels or make it a blind-test though..
Question: Does it accept 5v from Topping E70 DAC? Or will it clip?
Not sure where the volume control of PA5 II is located. Maybe you can compensate with the volume control for the very strong input. Don't know for sure though. I suspect it's buffered and not placed right at the input. If they say 2.6V then it's safe to assume that more than that will clip the amplifier.