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Real Balanced ACSS Pure Class A Preamp

Price: USD1180  (Exclude shipping cost)
The unit include below remote


Summarize Use Manual Specs Shipping Cost

The unit applied input short design :
         The unit  had design the analog idle input short circuit for avoid the disturb between different sources.
         This design also applied in a lot high end
brand devices.
         The working theory : 
Without the idle input short circuit ,if the input 5 and input 4 had connect two extra DACs,  while users select the either input 5 and input 4 , the another input signal will fire through the circuits and mix  into the using signal, even though this signal is  weak  but still can degrade on the sound quality.
          With the idle input short circuit function : if user select either the input 5 and input 4, the another input signal will short circuit then no any signal fire through circuits , can keep the sound quality had not degrade.

         Below case users don't want the idle input short circuit function, users can open the chassis, pull off the jumpers of the proper input channels, please note must pull off of left and right channels together :
        1, The same extra source not only connect the
unit analog input, but connect with other amps simultaneity.
        2, The same extra source connect to the
unit different inputs  at simultaneity.

The Debug button on rear :
         The Debug button on rear is for select the display always on or auto dark while 10 seconds after user stop operate the unit.

Connect with KRELL amplifiers:

          Master 1 is compatible with KRELL amplifiers CAST inputs.

          A cable can be made with one side connecting to Master 1 ACSS outputs, other side to a  KRELL amplifier CAST inputs.

         The ACSS output pins:
         Pin 1, GND
         Pin 2, Hot
         Pin 3, Cold
         Pin 4, GND

         KRELL amplifiers have lower gain versus audio-gd Master series amplifiers when using the CAST connection, so customers can custom order the Master 1 to have higher ACSS output gain if expecting to connect to KRELL amplifiers.




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