This is a powered acoustimass speaker system from Bose, model AM8P/800PSERVICE MANUAL with extras. It is a vintage audio and video accessory that is perfect for collectors or enthusiasts. The system is designed to provide high-quality sound and is ideal for use in small to medium-sized rooms. The brand of this speaker system is Bose, known for their high-quality audio products. This model is part of the Vintage Manuals, Vintage Parts & Accessories, and Vintage Electronics categories, making it a rare find. The system is perfect for consumer electronics and is a great addition to any vintage audio collection.