Air Tight ATM-1E Stereo Power Amplifier [2024 edition]

After launch of the original “ATM-1” in 1986 and “ATM-1s” in 2006, the EL-34 push-pull amplifier” has been updated for the first time in 18 years as “ATM-1 (2024 edition)”. While following the orthodox yet sophisticated design of the original model and the concept of “a tool for listening to music”, we selected the best parts currently available and designed an amplifier that allows the EL-34 to provide more stable performance. Authentically designed to bring out the best of EL-34. The circuit configuration is a typical Leak-Mullard type. We choose to use UL connection from the balance between quality and output prospective to draw stably outputs of 35W+35W. We focused on authenticity over novelty, balance over uniqueness, and focused on bringing out the wonderful characteristics of the EL-34. The output transformer and choke coil are made by reliable Tamura. The bias circuit has a fixed bias, and a custom-made precision vertical edgewise meter has been adopted for ease of adjustment