There are no immediate plans, but I admit to being very curious about it. I had previously tried the XS pre but it was a tonal change that I wasn't prepared for - especially given that I knew I had the M Projects on the way and so I held off. I'd love to hear that again - perhaps even with the XS-150's but my current budget doesn't make that easy.
I'd also LOVE LOVE LOVE to hear the Soulution gear - or even Constellation. And of course Mark's Tenors.
But my first step is going to be bypassing my Equi=tech transformers that feed balanced power to my listening room (will require an electrician). While my sound is very clean, I feel there's a 'hardness' in the upper mids that I'd love to tame. This has been around for the last 4 pairs of speakers and various cabling so it's either something in my room, the Pass electronics or power related.