Ayre owners and preamp options: seeking advice

...what more could you want...

More Ayre, of course!
 Done with room and system tweaks. The suggestion to look at new DACs is reasonable too. But I'd want something with an upgrade path. 

I agree with Randy and Stringreen. Ayre will do it right, should you want to upgrade. 
Regarding upgrading your DAC, why not get a Codex? It must be the best buy of the decade.
The only other comparably priced DAC is the Schiit Gungnir of Yggy, both are upgradable.
Bob

Ayre announced a new DAC at Munich - it has a 100W amp built in

may not be an upgrade for you

and here is something on a dealer's page:
http://ciamara.com/new-ayre-8-series-components-coming-fall/

I haven't seen anything on the 5 series

Now that new 8 series looks interesting.  I will also look at the codex specs again.  It has received a lot of positive reviews.  My current dac receives a USB input from my Mac Pro as well as an optical input from an older meridian CD player which I use as a transport.  I should try a newer dac  and see where that brings me.  If not a big change then I will very likely just get a new Ayre pre.  I really do love the Ayre stuff.  It's built well,  reliable and musical.  I'll probably die before it does.  thank you all for the helpful suggestions!

I am using a VAC Renaissance Mk3 pre with phono in front of my Ayre VX-5 Twenty with excellent results.