Fellow Niagra 7000 user here - I agree it produces a more dynamic sound with my amplfier than straight into a wall socket.
I do have footers under my Niagra - Ansuz Darkz DTC. They are expensive but make a difference. You can probably find them second hand now. If you do go down the Ansuz route do not go for anything less than D-TC in the range - some of the lesser models sound much less good.
I do have footers under my Niagra - Ansuz Darkz DTC. They are expensive but make a difference. You can probably find them second hand now. If you do go down the Ansuz route do not go for anything less than D-TC in the range - some of the lesser models sound much less good.