Thanks for the measurements Cliff.

I used to have a G68, but I don't remember the insides very well. Does yours look like this Meridian G68 Internal View?

In that picture, the 245mm is presumably the horizontal distance from the right side of the fan housing to the right hand side of the unit, on the right? In other words, the space that is half ocupied by the SMPS? So if the fan could be relocated to the left, there would be about 300mm available? I ask this because the form factor for the popular HBAA-40W LPS is 260x102x63. It sounds like that would have enough space if it could encroach on the fan aperture.

And when you say "the central board retaining struts", do you mean the plastic brackets that aren't visible in the above picture, but can be seen in Meridian G61 Internal view of the G61?

So that there's 120mm available without having to cut the struts in the G68? That being the case, there would be nearly enough space for the 60W Acopian 51212T9A at 235x87x130 (which I've just bought). I have high hopes for a G68 with a linear supply...

Thanks, Nick