HOLO AUDIO DSD1024 Digital Analog Converter User Manual
- June 6, 2024
- HOLO AUDIO
Table of Contents
HOLO AUDIO DSD1024 Digital Analog Converter
OVERVIEW
May, “The Possibility of”
A new generation DAC of fully discrete resistor network (commonly known as
R2R) .
FEATURES
- The new generation of linear compensation technology solves the accuracy errors caused by resistor tolerance, after compensation, reaching a variance of 0.00005% tolerance accuracy .
- 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 can provide a SINAD of> 11 SdB and a dynamic range of> 130dB, which represents the performance limit reached by today’s most advanced R2R architecture DAC.
- Using the ultimate performance of PLL +FIFO technology, provides 0.1 Hz Third-Order low-pass ability to inhibit jitter It also uses a high-performance femtosecond VCXO as the PLL clock source. Under the premise of being almost immune to the front-end jitter, it can also lock up to l5us-2us@ 1 KHz signal with high jitter. (It can lock up to l5us-2us@ 1 kHz signal with high jitter on the premise of almost being immune front-end jitter) .
- Dual Mono DAC L/R channels are independently powered by their own dedicated transformer in the PSU chassis. This provides better channel separation and more accurate sound stage .
- Supports USB and 125 up to DSD1024 and PCMl536MHz sample rates.
- The USB interface uses proprietary firmware with ultra-low latency, a highly reliable data transmission, ideal USB eye pattern measurements that contributes to 2-4 times higher performance than official firmware .
- Two sets of independent HDMl-125 input interfaces are provided, and each set of 125 has a four-way independent circuit, as opposed to standard LVDS chip, making 125 clock signals subject to lower interference and lower jitter. In addition, each group of 125 inputs can be configured with specific pinout configuration, making it compatible with most of the HDMl-125 digital devices on the market.
SPECIFICATION
DIGITAL OUTPUT
-
COAXIAL 1, COAXIAL2, OPTICAL , AES
PCM 44.1 -192K (24bit)
DSD 64X ( DOP) -
USB
PCM 44.1 K-1.536M (32bit)
DSD 64-512X (DOP)
DSD 64-1024X (Native) -
1251, 1252
PCM 44.1 K-1.536M (32bit)
DSD 64-1024X
AMAL06 OUTPUT
-
PCM 48K NOS
THD+N 0. 00017% @1 K(-11 SdB)
DNR 130dB
Voltage Output 2. 9Vrms (RCA), 5 .BVrms (XLR) -
DSD 128X
THD+N 0. 00025% @1 K(-112dB)
DNR 11 SdB
Voltage Output 1. 45Vrms (RCA), 2.9Vrms (XLR)
PHYSICAL CHARACTERISTICS
-
Size (Main Box)
430x300x55mm
(W x L x H, Dimensions do not include protruding parts) -
Size (Power Chassis)
430x300x55mm
(W x L x H, Dimensions do not include protruding parts) -
Weight
1 Bkg/39.68lbs
CONFIGURATION
-
Power Input (configurable, see label on bottom of unit for specified input)
220-230V 50/60Hz – Fuse Type 2A SB 5x20mm -
Power consumption
60W
ACCESSORIES
- Included Accessories :
AC Power Cable xl
DC Power Cable x l
USB Cable xl
Remote Control xl
FRONT PANELS
BUTTON CONFIGURATION
POWER, DISPLAY MODE I MENU, OVER SAMPLING IE-, SOURCE/
LEFT OF DISPLAY
POWER UNOl[RTION LIGHT 15 RED WHEN POWERED IN OFF-STRTE RNO GREEN WHEN ON
Press and hold this button for 1 second to switch the power on and off. In the off state, all is power is off except for the standby circuit and red indication light, other circuits of the May will stop working and stop outputting.
MUTE
In the silent mode, some of the May output stage circuit turns off. However, the power consumption is essentially unchanged, and will maintain its hot machine state.
DISPLAY MODE
In normal operation (display) mode, press this button to select whether to turn off the display automatically; in configuration (menu) mode, press this button to select the configuration item.
OVER SAMPLING
In Normal (over-sampling) mode, press this button to select oversampling mode. In configuration mode, press this button to change the configuration mode (left).
SOURCE
In Normal mode, press this button to select the digital source. In configuration mode, press this button to change the configuration mode. Select the digital input source, including USB (ground isolated), RCA, BNC, AES, fiber optic, 12S-1 and 12S-2.
OVERSAMPLING MODES
NO OVERSAMPLING MODE
directly converts the original data. Since digital oversampling caN cause time
domain distortion such as ringing effects, NOS can avoid these problems.
Generally speaking, NOS has a significant impact on other performance
indicators, but the May “” is designed to maintain good performance in NOS
mode.
OS- OVERSAMPLING MODE
Super-sampling the PCM to a higher frequency PCM oversampling the 050 to a higher frequency 050 performing a digital to analog conversion.
OS PCM OVERSAMPLING MODE
whether it is PCM input or 050 input, always oversample to PCM for digital
analog conversion.
OS OSO OVERSAMPLING DISTRICT MODE
Whether in PCM input or 050 input, super-sampling to 050 mode for digital
analog conversion.
CONFIGURATION MODE
How to enter Configuration mode:ln shutdown mode (powered off state, red light indicated) press and hold the menu button and power button to enter menu mode. Then press the menu button to select the configuration mode, press the left button or right button to change the configuration mode.
COf1FlGURRTl0f1 i’lODE OPTl0f1S [LEFT TO RlGHT SELECTl0f1)
-
1251 FMT
Select from HOLO, ALTl, ALT2, ALT3. Reference 125 Port Pinout for an explanation and the 125 line sequence. (See page 8)
1251 FMY
Select from HOLO, ALTl, ALT2, ALT3. Reference 125 Port Pinout for an explanation and the 125 line sequence. (See page 8) -
OUT POL
STANDARD, the analog RCA output is normal polarity, balanced XLR output 1-Ground, 2-Hot, 3-cold.REVERSED, the analog RCA output is reverse polarity, balanced XLR output 1-Ground, 2-Cold, 3-Hot -
PLL
Select ON to turn on the PLL function and work with all digital input signals to eliminate Jitter. Select OFF to turn off the PLL function.
REAR PANELS
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.
REMOTE CONTROL
*This is a universal HOLD AUDIO remote. Volume (+J-) is not applicable to the
May DAC as there is no pre-amp built in, will work simultaneously with other
HOLD Audio branded products i.e. pre-amps and head-amps.
125 – 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 12S, not conventional HDMI audio and video signals.
