audio-gd Stellar product

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HE-2 MK3
Real mono ,built in regenerate power supplys
30W pure class A , 250W class A at 8 ohm each channel
Supports XLR and ACSS inputs
20 and 26dB two gain modes
Apply Real balanced ACSS non negative feedback power amp
Apply "Linear Fidelity" technology non negative feedback output stages
Soft start power design
80 pcs ONsemi (Motorola) output transistors
　

Note: The manufacturing process and design can be updated and upgraded at any time so internal and external changes to the actual product can occur without notification.

Summarize

Use Manual

Specs

Shipping Cost

The first time connect the HE-2 MK3:
     Connect the signal cables between the preamp and HE-2 MK3, confirm the HE-2 MK3 selectors that on the rear have select to proper position.
     About the gain switch , recommend turn to "L" (20 dB) when the speakers has higher than 95dB sensitivity , otherwise turn to "H" (26 dB) .
     Users also can try the AB compare find the best choice because the preamp and listen room size also effect the loud level, please shut down the amps before switch the gain .

The rule of power on and off the HE-2 MK3:
     Power on the transport, then the DAC and preamp , latest turn on the HE2 MK3.
     When power off the system, must turn off the HE2 MK3, then power off other units in the system.

Please note:
     The stock AC power cables can not show the HE-2 MK3 real performance , they are only for test the HE-2 MK3 if can work. We recommend customer buy the good quality power cables for the HE-2 MK3, the power amp even need two strong power cables .
     We have the power cable for customer order   http://www.audio-gd.com/Pro/CablesEN.htm

How to connect the preamp only had the RCA output :
      The Single ended preamp can not show how good of the HE-2 MK3, we don't recommend that connected.
      But if must connect, can built the RCA to XLR cable connect the preamp and HE-2 MK3.
　