Enormous Door - BSO OverdriveIf youve been using a Ouija board to channel the ghosts of guitar greats who have passed on, then rejoin the 21st century, because the BSO is your conduit. A work horse on any pedal board, the BSO can forge an infinite spectrum of sounds; from bluesy crunch to full tilt overdrive. Designed to compliment any style, as well as any rig, the BSO is a classic overdrive designed to fill your sound with the spirit. Engineered around the legendary Burr Brown