These are original BIC Venturi Formula II speakers, a classic set from the golden age of American hi-fi in the 1970s. BIC (British Industries Corporation, based in Westbury, NY) was known for pushing speaker design forward, and their Venturi line stood out for using innovative porting to produce deeper, cleaner bass response than most rivals of the time. The Formula II model features BIC?s dynamic tonal compensation switch (manual or automatic) and adjustable brightness control, giving listeners the ability to fine-tune their sound ? a unique feature that was ahead of its time. These were marketed as speakers that could deliver both accuracy and power, making them a favorite for rock, jazz, and classical alike. Physically, the cabinets have that unmistakable 70s vibe with walnut veneer and waffle-style foam grills. They?re substantial, well-built, and still highly regarded among vintage audio enthusiasts for their lively, room-filling sound. Condition: These speakers are in used vintage condition with signs of wear consistent with age. Grills, drivers, and controls are shown in photos. They?ve been fully tested and produce a wonderfully warm clear and powerful sound. Ships out next business day with free insurance. Buy with confidence - check out our feedback!