VINTAGE Realistic 31-1989 Seven Band Graphic Equalizer. Made in S. Korea. The brand of this item is Realistic, with a model number of 31-1989. This item is being sold untested. It is a great addition to any vintage audio setup and a rare find for collectors. The seven-band graphic equalizer is a unique feature that allows for precise sound adjustments. Don't miss out on the opportunity to add this piece to your collection.