The Grace Design SB-DT is Decca Tree - Standard 3 microphone tree (2m x 1m)
Spacebar modular microphone positioners are designed to make any multi-microphone setup simple and precise. Clearly engraved scales for angle and distance make setting capsule spacing, angle of incidence, and X axis rotation easy and repeatable.
The Spacebar modular system components can be purchased in pre-configured assemblies for several standard microphone arrays, or you may build a virtually limitless range of microphone holding structures to meet any need.
All components which feature microphone mounts come with American standard 5/8-27 threads, or can be ordered with European standard 3/8-16 Whitworth threads.
The Spacebar modular system components are precision fabricated from machined aircraft aluminum, brass, and stainless steel. They are light, strong, and if properly cared for will last a lifetime.