rh black box

The Synergistic Research Black Box is a compact acoustic treatment device
designed to address low-frequency issues in a listening room. Utilising patented
sympathetic resonance technology, it acts as a broad-spectrum low-frequency resonator array, effectively eliminating bass nodes and expanding the room’s capacity to portray accurate low-frequency information and spatial content. The Black Box enhances overall sound quality by balancing low, mid, and high frequencies, thereby clearing up every multiple of the base frequency it corrects