These are what I use. They are a modular performance stand option with looks to taste but they certainly deliver on the musical front. They began as Quadraspire furniture but have been breathed on a few times by the guys at Audio Works.
The only drawbacks with them seem to be:
1) They are not fans of a particular Scottish turntable with the bouncy upgrade. The unbouncy option on this stand outperforms the bouncy one on ordinary furniture quite significantly.
2) This stand is constantly evolving meaning you just have to go out and buy the latest improvement.
First they changed the rods to be tapered and have decoupling rings to prevent each shelf coming in contact with the rod supporting the shelf above it. The 'Reference' version of Quadraspire wooden furniture was thus born in 2001. It was available in different wood veneer finishes or black or silver MDF. The MDF version sounded slightly better but wasn't as pretty.
Then Dave Cattlin discovered cutting holes in each shelf reduced mass and speeded up energy transfer across the shelves and down the rods to ground. Dynamics, timing (further reduction of time smear*) detail and soundstaging (if you like that sort of thing) were improved as a result. Fortunately Quadraspire offered a straight swap option plus £10 . I got my "bog seats" in early 2002.
In 2003 acrylic was discovered as an inert material that was just a no-brainer improvement. I bought just one shelf in acrylic for under my CD player.
Further minor modifications included shortening the decoupling rings.
In 2006 plastic spikes under mains block tables, top shelves and power amp tables were a subtle improvement in tunefulness and harmonic detail. They could not be placed under multi-tiered racks though.
In 2006 and last year after messing about designing a block shelf for the Reflex mains block that they ultimately abandoned, it was discovered that guitar-shaped shelves sounded a lot better than the Quadraspire shaped ones. I now have two guitar-shaped shelves and two Quadraspire ones.
This year the supporting rods are now made from acrylic. This is still at prototype stage though. I'm sure Rick will keep us posted with the latest on that score.
*Another thread will attempt to explain this particular phenomenon. Larry?