Thick 3mm fine anodised Aluminum on the top;
30 mm thick high quality solid multi-ply birch wood;
bFly-audio believe that by combining dissimilar layers in a specific sequence results in the best broadband resonance attenuation;
3 PROfessional MLA Absorber, height adjustable feet (this "tripod" arrangement normally results in the best results, although an optional additional foot can be added if preferred).