Website:https://airtight-anm.com/
Est. year: 1986
The input stage of the amplifier is built on one 12AX7 lamp, the cathode repeater is built on three 12BH7.
The main feature of the Airtight ATM-2211 is the use of two independent power sources in each device. As a result, the system began to produce much less noise, and its power increased from 18 watts per channel to 32 watts per channel.
