Yamaha DSP-1 DS Surround Sound

Available for purchase is one gently used and in excellent like new working condition --- Vintage (circa 1986) --- Yamaha DSP-1 --- Natural Sound Digital Sound (Surround Sound) Field Processor (with 16 adjustable Acoustic/Surround Sound modes). The DSP-1 is designed to be paired with mainly the DSR-100 PRO unit. It includes the unit, its owner's manual, x4 stereo cables and remote control, and it is packaged in its original product box --- (Asking price --- $350.00 --- OBO --- Serious inquiries only). If interested --- please leave a message to inquire. Thank you.