@dhcod, the Mani is an excellent suggestion, for a couple of reasons. First, it's $129! No need to sell it, just keep it as a back up. More importantly, the Mani has a setting specifically for the 5mV output Deccas and Londons: 30dB of gain. By the way, George Counnas provides a 15k ohms mm cartridge impedance loading position on his Zesto Andros phono amp specifically for Decca/Londons. The Andros also has 200pf of capacitance on the mm input, good for D/L's.
I also use a Herron with my Londons, so let me ask you, is yours a VTPH-1mm, or a VTPH-2 getting upgraded to a 2a? Keith told me most of the difference between the -1 and -2 was in the moving coil section of the -2. If yours is a -2, may I ask what he said about the change to the -2a from the -2? Thanks---Eric.