This vintage Altec Lansing Model 1589B mixer amplifier is a true gem for any audio enthusiast. With its classic design and sturdy construction, this preamp is built to last and provides high-quality sound performance for any occasion. Featuring the iconic Altec Lansing brand name, this model is a true collector's item that is sure to impress any vintage audio enthusiast. The mixer amplifier is perfect for those looking to add a touch of vintage charm to their setup. With its powerful sound and timeless design, this preamp is a must-have for any serious audio professional.