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v1.1
Note:
Please connect DC power cable before AC power cable. Disconnect the AC power before disconnecting the DC power. Failure to do so could potentially cause damage.
1 |
P a g e

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Questions and answers

Alvin Ferguson
May 6, 2025

I’m trying to remove the umbilical cord between the May power supply and DAC without success. Is there a special way to do this?

1 comments:
Mr. Anderson
May 18, 2025

To disconnect the umbilical cord between the Holo May power supply and DAC, locate the LEMO-style connector on the back. It can only attach one way and has a red dot indicator for correct alignment. To disconnect, gently pull the connector straight out without twisting, aligning with the connector's design.

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Summary of Contents for Holo audio May

  • Page 1 ---------------------------------------------------------------------------------------------- 梅 v1.1 Note: Please connect DC power cable before AC power cable. Disconnect the AC power before disconnecting the DC power. Failure to do so could potentially cause damage. P a g e...
  • Page 2 P a g e...
  • Page 3: Product Overview

    Proprietary anti-jitter technology that provides a full amplitude of anti-jitter without increasing noise floor and other undesirable effects. Based on this new generation of technology May “梅” can provide a SINAD of >115dB and a dynamic range of >130dB, which represents the performance limit reached by today's most advanced R2R architecture DAC.
  • Page 4 PCM 44.1-192K (24bit) COAXIAL1, COAXIAL2, OPTICAL, AES DSD 64X (DOP) PCM 44.1K-1.536M (32bit) DSD 64-512X (DOP) DSD 64-1024X (Native) PCM 44.1K-1.536M (32bit) I2S1,I2S2 DSD 64-1024X THD+N 0.00017% @1K(-115dB) PCM 48K NOS DNR 130dB Voltage Output 2.9Vrms (RCA), 5.8Vrms (XLR) THD+N 0.00025% @1K(-112dB) DSD 128X DNR 115dB Voltage Output 1.45Vrms (RCA), 2.9Vrms (XLR)
  • Page 5 AC Power Cable x1 DC Power Cablex1 Included Accessories USB Cable x1 Remote Control x1 P a g e...
  • Page 6 May "梅" will stop working and stop outputting. Right of display, 4 buttons from left to right: In the silent mode, some of the May "梅" output stage circuit turns off. However, the power consumption is essentially unchanged, and will maintain its hot machine state.
  • Page 7 NOS can avoid these problems. Generally speaking, NOS has a significant impact on other performance indicators, but the May “梅” is designed to maintain good performance in NOS mode. Super-sampling the PCM to a higher frequency PCM oversampling the DSD to a higher frequency DSD performing a digital to analog conversion.
  • Page 8 Note: please connect DC power before AC power. Similarly, disconnect the AC power before disconnecting the DC power supply. Failure to do so could potentially cause damage. DAC (main) – Rear Panel P a g e...
  • Page 9: Remote Control

    Settings 梅 *This is a universal HOLO AUDIO remote. Volume (+/-) is not applicable to the “ ” May DAC as there is no pre-amp built in, will work simultaneously with other HOLO Audio branded products i.e. pre-amps and head-amps.
  • Page 10 I2S Port Pinout Using LVDS differential transmission. Physical interface and HDMI consistent, you can use the HDMI cable. But note that the electrical signal transmission is I2S, not conventional HDMI audio and video signals. 10 | P a g e...