HI Jim, last time we messaged you changed your port settings to the small ones and said you might not need the sub anymore. I am looking into buying 2 Rel S/812 subs to compliment my ref 5's. Have they made much difference to your overall sound? I know the 5's only go as low as 32hz so would expect them to.
BTW, I've not heard the meta version of the kef 5 and I will not be looking to upgrade them. I had (still have) the Ref 4's for over 20 yrs!
Cheers, Mark