Air TIght ATM-2211 Monoaural Power Amplifier

SET x High Power   About 20 years have passed since the launch of the ATM-211 single-monaural power amplifier using 211 tube, which has been well received since its launch in 2001. Since then, we launched 211 push-pull monaural power amplifier ATM-3211, which has become a turning point for the Airtight brand as well as SET ATM-300R. At an eve of 35 years anniversary as AirTight, we will launch the new 211 single monaural power amplifier ATM-2211. This time, we decided not to use the overall Negative Feedback (NFB) from the secondary side of the output transformer, but to apply a large amount of NFB from the plate of the 211 output tube to the first stage. This is because the sound penetrating power and the energy feeling are emphasized rather than the so-called characteristic improvement. The operating point of each components of the circuit were designed more strict, and increased the output to 32W. ATM-2211 uses fixed bias method and DC ignition for the filament.   For the Ip mo