Air Tight ATM-1 – the 2024 version of the legendary amplifier
The Japanese company Air Tight has presented the latest revision of its famous amplifier Air Tight ATM-1 (the first device was released in 1986, and in 2006 a more advanced version ATM-1s was released). The amplifier uses a push-pull circuit on 1/12AT7 (ECC81), 2/6CG7 (6FQ7) and 4/EL34 tubes.