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Re: AIR TIGHT ATM-1/BIAS PROCEDURE

219.188.105.5

AIR TIGHT ATM-1 is a very fine power amplifier. I do not think it has an auto-bias feature, so you have to set it right on your own if the unit you are buying is not properly maintained. Its output is 36W/channel (8 ohm)--more than enough to drive ALTEC 19 or Klipsch La Scala and it sure will "rock/swing" you hard. Its signal-to-noise ratio is 100dB, so the amplifier is supposed to be very quiet. As a power amplifier using two EL-34/6CA7's per channel in ultra-linear configuration, AIR TIGHT ATM-1 is one of the best sounding amplifiers ever produced. Again, it all depends on the condition of the unit you are buying. Good luck. M. N.


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