Audio-GD DI-25HE Digital Interface Regenerative PSU

DI25-HE USB / SPDIF / I2S CONVERTER & RECLOCKER

Featuring versatile audio outputs such as AES/EBU, RCA Coaxial, and IIS HDMI, this converter guarantees seamless compatibility across a diverse array of devices.

What sets this converter apart is its discrete regenerate power supply, delivering a clean and consistent power source for optimal performance. Say goodbye to unwanted noise and distortion, as our converter prioritizes pristine audio reproduction.

For audiophiles seeking precision, the Special 10MHz Master clock output provides highest accuracy. With both 50 and 75-ohm BNC options, seamlessly connect to your D/A Converter and enjoy a heightened level of audio refinement.

HIGHLIGHTS

• Amanero USB interface , Support up to PCM384K / DSD512
• Accsilicon 90/98M AS318-B Series Professional Audiophile XO’s
• 50 & 75 ohm impedance 10MHz inputs & outputs
• Integrated 10MHz  ultra low jitter/phase noise clock output (50 & 75 ohm output ports)
• All inputs & outputs are galvanic isolated
• FPGA firmware update support to enhance features and sound quality.

DIGITAL INPUTS

• I2S audio input
  • HDMI I2S input interface
  • Supports MCK up to 40Mhz
• USB audio input
  • USB2.0 / USB3.0 support)
  • Support Windows, OSX, Linux, ISO
• External 10MHz Clock Input (BNC)
  • 50 & 75Ohm inputs available
  • 0.3Vpp -3Vpp
• FPGA firmware update port
  • Future enhancements.
  • Windows Software included

DIGITAL OUTPUTS

• AES/EBU 110Ohm output (XLR)
• Coaxial 75Ohm output (RCA)
• IIS LVDS 100Ohm output (HDMI)
• 10Mhz Master Reference Clock Output (BNC) (9dbm @50 ohm)

REGENERATIVE POWER SUPPLY

The Audio-GD proprietary integrated regenerative power supply functions as a built-in electric generator within the unit, effectively eliminating noise from the main power source. By delivering ultra-low noise and a clean AC wave to power the DDC, this innovative feature actively regenerates the main power supply while blocking unwanted noise from the power line. The result is an audio experience characterized by utmost neutrality and analog sound quality beyond imagination.

An independent balanced regenerative wave generator crafts a novel ultra-low noise waveform at 400Hz. The selection of the 400Hz frequency is deliberate, as it exhibits superior efficiency compared to the conventional 50/60Hz. At this specific frequency, 400Hz, the audio is enhanced to faithfully reproduce a genuine and pleasing analog sound. Amplified by balanced gain amps with robust output stages, the regenerative transformers are propelled to generate exceptionally clean AC power. This meticulously regenerated clean AC power is then directed to separate Class A PSUs power supplies, individually catering to both the left and right channels.

DI-25HE CONNECTIVITY

1 = AES/EBU XLR 110Ohm Output – 2= S/PDIF RCA 75Ohm Output – 3= BNC 75Ohm 10Mhz Out – 4 = BNC 50Ohm 10Mhz Out

5 = HDMI IIS Output – 6 = BNC 75Ohm 10Mhz Input

7  =BNC 50Ohm 10Mhz Input – 8 = AC Input – 9 = USB-B Audio input –

10- HDMI I2S Input – 11 = Firmware Update port & USB Firmware Reset button

Audio-GD Reports:

• “The built-in HDMI-IIS input can connect to source devices with a compatible HDMI-IIS output.”
• “The HDMI input signal rejects jitter, resynchronizes the clock and data, and regenerates an accurate clock signal, significantly improving the sound quality of connected sources, especially low-end and mid-range devices.”
• “The source’s HDMI output must match the diagram below, and the MCLK signal should be lower than 40MHz (most sources use a 24.576MHz clock, which is compatible with the DI-25HE HDMI input).”
• “We tested the DI-2014 (a 10-year-old device), a $300 CD player, and other sources connected to the DI-25HE. The sound quality improved noticeably, nearly matching the DI-25HE when directly connected to a MacBook Pro

SPECIFICATIONS