The best available psu I could find was a Bicker SNP-Z101 wich has higher efficiency, it is a bit tricky to fix it into the psu case from Meridian, the power cable inside the G68 I replaced it for Furutec and the fuses are from HiFi-Tunning Silver the total upgrade was around 160 euros. The G68 was very revealing and detail with more control along the wide frequency range, enhancing the micro details.

Rgds,

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Sonus Faber Cremona M, Cremona M Center, Auditor M, Meridian G68XXV,
Synergistics Research PowerCell 10SE, SR Acelerator, SR Apex