Thanks guys,
I just received the XP17 yesterday so I've been using at 66dB of gain and 100 ohms to start, I will try loading at 200 then 500 tomorrow.
I can only set at 56dB,66dB or 76dB of gain.
My old MiniMax phono was between 56-58dB and that sounded good so I'll try dropping it down to 56dB on the Pass.