Holo Audio Azure Headphone Amplifier – SoundHub

Holo Audio Azure Headphone Amplifier

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  • Regular price $2,799.00
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“沧” Azure is a preamp/headphone amplifier from HoloAudio.“沧” Azure adopts a fully balanced structure with 4 groups/channels. The left and right channels form a fully balanced structure. Each channel has two independent amplification modules to complete the buffering and amplification functions. There is a total of eight amplifier modules built into the “沧” Azure and they are fully discrete. The design is able to solve the shortcomings of the transistors, so that its tone can exceed the limits of traditional transistors. It also has both the advantages of tubes and transistors. And the use of a large number of transistors makes the linearity of the amplifier superior in every way.The volume control of “沧” Azure is a fully balanced stepping device controlled by a relay. It has a total of 64 steps, and each step is 1 db volume. The advantage is that the noise is minimal and small, and it can be precisely controlled, even at a low volume the left and right channel will not be biased.“沧”Azure has three output modes, low-impedance headphone output mode, high-impedance headphone output mode, and line output mode.


Analog Input

  • Single Ended Input x1
    • Largest Value 12Vpp
    • Impedance 3.9Kohm
  • Balanced Input x1
    • Largest Value 24Vpp
    • Impedance 7.8Kohm

Analog Output

  • Single Ended Line Output x1(PREAMP)
    • Largest Value 16Vpp
    • Impedance 33ohm
  • Balance Line Output x1(PREAMP)
    • Largest Value 32Vpp
    • Impedance 66ohm
  • Headphone Single Ended Output x1
    • Low Resistance Mode – 400mW@32ohm load
    • High Resistance Mode – 180mW@300ohm load
  • Headphone Balanced Output x1
    • Low Resistance Mode – 1600mW@32ohm load
    • High Resistance Mode – 720mW@300ohm load


  • Aluminum Remote Control