Trying to narrow down my choice of amp to partner a pair of Cadence Anina
hybrid electrostatics (easy 8 ohm load, 89Db efficiency, very open and
natural sound with plenty of bass extension; far better than the equivalent
M. Logan Aerius for example).

Having put aside the thoughts of Class A behemoths I am focusing on Copland
305/520, Primare Pre30 / A30.2 or MF A3.2cr.

Anyone any experience of comparing any of these ?

Whatever I buy will replace my trusty NVA pre/power monoblock set up (I need
the remote control and a bit more headroom than 70W allows).

Thanks