The Harman Kardon Ax20 Audio Amplifier is a vintage integrated amplifier from the United States. This high-quality unit is produced by Harman Kardon, a renowned brand in the audio industry. The Harman Kardon Ax20 model offers exceptional sound quality and performance for vintage audio enthusiasts looking to enhance their audio experience. This amplifier is a valuable addition to any vintage audio setup, delivering a timeless and classic sound for music lovers. Fully tested and working condition.