After some more reading, and some more research, passive EQ seems for me the ideal option. With this decided, the choices then boil down to either a one stage RIAA equalisation or a split EQ. Having read some information regarding the Tango EQ-600 LCR RIAA equalisation 'unit', I become interested. This was short lived as I discovered they are no longer produced. However, upon further seraching, I have discovered two current manufacturer/supplier of a LCR RIAA EQ unit. One from Silk (which can be found from DIY Hifi Supply (bottom of page)) and the other from Acoustic Dimension. Both are reasonably costly (in the US$470, and Euro 420, respectively). More to follow.