The Harbeth fit my musical preferences perfectly; I typically go through a lot of equipment, but I've had Harbeth in my system longer than any other component. 

I found the Mountain Wood blocks at Home Goods, they were only $39 so I bought a few of them. 

You can also find them on Amazon ($49 + $12 for shipping). They are the 16"x16" Acacia extra thick (2 1/2").  

I've always wanted to hear Robert's speakers, but haven't come upon the opportunity. How do you like your Adagios? 

What would you gentlemen suggest as a good Tube amp match for Harbeth? 

I tried a Rogue Cronus Magnum and Line Magnetic 518. 

The cabinet is an inexpensive piece that I ordered from JC Penney a couple years ago. It's actually pretty well built and serves it's purpose. 

I find the Harbeths sound best with a lot of power and the MF packs a 500 watt punch. I've used the SHL5+ with lower powered tube amps and didn't enjoy them nearly as much.