This is a rare Furman PQ-4 Parametric Equalizer Preamplifier that is perfect for any music lover. Its sleek black color adds style to your collection and its originality is priceless. The brand, Furman, is well-known for its quality musical instruments and this piece is no exception. This page-style advertising collectible is a must-have for any serious collector of musical instruments. The parametric equalizer preamplifier is designed to produce a high-quality audio output, ensuring a clear and crisp sound. Whether you're a musician or just love listening to music, this unique piece will surely impress.