Hi Nick,

I did'nt know there was so much space inside G68 too (861 is almost empty inside). The only G series gear I had my hands on, besides my own G08, was a G92 and it was crowded!

This is a nice shop with quite good service (IME) and here you have some options (reasonable non-ultra esoteric, but Meridian uses 7805s anyway): audiophonics

You do need +12, +5 and -12, and my bet will be to have the +5 better isolated as it powers the logic and digital components (and this is what Meridian does in the 861 PS with an extra pre-regulation in this rail).

So my 'first step' -or first try- on a G68/61 will be to add a linear regulated +5 supply and disconnect this line from the original PS (but let the original PS supply the +-12V analog lines).

Off course all at your own risk, etc etc wink

Basement: Linn Sneaky DS, 568.2mm, ARS Sonum Gran Filarmonia, Ramallo Allegro.
Living Room: 602, Linn Akurate DSM, Hypex Nc400, B&W 802D.