Hello TheLad

In my various set ups, I've found Meridian's room correction to be of marginal value. I've used the G68 and 861v4.

For the price of a used G68, you could buy a used 568.2mm and HD621 and have access to Bluray codecs (not Atmos).

For me, the trade off between the G68 and 568.2mm was more functionality and connectivity, vs better sound quality with sufficient functionality/connectivity. The 861v4 betters both units, but costs up to 5x the price.

And I'm completely with you on your choice of charity shop. I've been donating a lot over the past few months, homelessness isn't a sexy cause, and the local place does suffer in comparison to the big charity chains (worthy as they are)

Cheers

George