Many thanks for these replies and interesting re the Audeze which I will need to look into also.

I am new to this forum and hope I am posting correctly. I notice there are a few tempting deals around on Denon AH-D7000 and 7100 headphones and there a couple of used pairs of Beyerdynamic T1 around too, all around the £500 mark. In the past, I have owned Stax Lamba Nova Signature system...