Hi Costas
Don't get your hopes up too much for your G55 I too have had one on order since early January with numerous delivery dates promised the last being 'definitely delivered week beginning 7th June' but nearly 2 weeks later and still no sign!!!
It's not that long ago I was told by my dealer that they still only had a prototype.
Sadly there doesn't seem to be an alternative amp (spatial dimensions here)otherwise I would have had it by now. The nearest is TAG McLarens 5 channel but it suffers from clashes with Meridian's remote frequencies ie it switches off amp channels when changing Meridian sources!.. helpful yes?
We continue to wait in eager anticipation

Rod

818v3, QNAP HS-453DX, Roon, 7200SE, ARCAM AVR380, REL B2, Panasonic BD 80, LG OLED, SBox Transporter, iPad, F80. Shunyata Delta NR power cables.