Up for sale is a rare pair of early 1970s Rectilinear Mini-III bookshelf speakers. Designed during the golden era of high-fidelity audio, these compact powerhouses are famous for outperforming speakers twice their size. Rectilinear Research Corporation was known for its no-compromise engineering, and the Mini-III is a prime example. They feature a robust 3-way design that delivers incredibly warm bass, clear mid-range, and crisp highs. If you love the vintage acoustic suspension sound (like classic AR, KLH, or Advent), you will love these. Perfect for a vintage vinyl setup, office, or living room stereo system. Design: 3-way acoustic suspension bookshelf loudspeaker. Drivers: Heavy-duty woofer, dedicated midrange, and crisp tweeter. Cabinet: Rich natural wood veneer cabinets. Impedance: 4 ohms (pairs beautifully with vintage receivers). Era: Early 1970s (Made in Brooklyn NY). One connector replaced with a screw down. Cosmetic: Cabinets are in good vintage shape with some wear from age (see photos). Grilles are intact with original badges present. Professional, heavy-duty packing to ensure safe arrival.