Synergistic Research Black Box Carbon 211 tubes - 64 mm diameter

- 64 mm diameter

say I -- a more open mind might help those folks attain a far better-sounding listening environment without the clutter of baffles and traps

2013 Audio Accessory Excellence Award

allowing the loudspeakers to develop a fabulously deep and wide soundstage

they're sold out

Synergistic Research Black Box Carbon 211 tubes - 64 mm diameterOver a decade ago, Synergistic Research introduced a transformative broad spectrum low frequency resonator array called the Black Box that eliminates bass nodes and room modes while expanding your rooms ability to accurately portray low frequency information and spatial content. Working from the principle that all frequencies in the audible bandwidth are linked through harmonics, the original Black Box balances low frequencies, mid range, and high