Air Tight ATM-3211 Mono Amplifiers

The Air Tight ATM-3211 Mono Block Amplifier brings the legendary magic of the 211 triode tube to a new level. Building on the heritage of the ATM-211, this refined design uses a push-pull configuration to deliver over 100W per channel, combining breathtaking power with the graceful delicacy triode enthusiasts love. After more than five years of development, the ATM-3211 offers both lifelike detail in the quietest passages and effortless authority in dynamic peaks. Perfect for driving even low-efficiency speakers, it represents Air Tight’s uncompromising pursuit of triode musicality, engineering excellence, and timeless sound.

Features 

• Valves employed: 12AX7 x 1, 12BH7 x 3, 211 x 2
• Rated output: 120W (6Ω/THD2%)
• Frequency response: 10Hz~50kHz (±1dB/THD0.06%)(at 1kHZ/30W)
• Damping factor: 6(1kHz/1W)
• Input sensitivity: 1V/Input impedance 100kΩ
• Power consumption: 550VA
• Load impedance: 6Ω/16Ω(Interchangeable, 6Ωstandard)
• Dimensions: 400(W) x 450(D) x 405(H) mm