It's been a long time without purchase new DAC, since we are working on new class D amp with 12V trigger function.
And I choose Centaurus duo to R2R is my favorite type of DAC.
Front panel, it is new ID design with LCD display. The painting finish is really good than before.
Back panel, XLR/RCA output, I2S/Coaxial/Toslink/Bluetooth/AES/USB input and trigger. I believe it has all interface we need.
Bottom side, it also updates new foot with bigger rubber which makes more stable on table. The painting finish makes fingerprint more observed.
Inside, this DAC is made by Holo Audio DAC module same with Cyan2
Backside, we can see red screw glue on it to avoid someone teardown.
The power module. There are two portion, digital power DC5V on the left and analog power ±8V on right.
AC input, EMI filter put on main board and we can see ±8V wording on power module.
The digital control portion, XMOS XU316 on left side, Altera CPLD in the center and the IC without top marking should be SPDIF receiver.
SYNWIT MCU is used to control the DAC on the right side, I am not sure why this IC need to scratch out its top marking.
XMOS/CPLD used NDK crystal, I am not sure which series but they should be NZ2520SDA on CPLD.
Holo Audio R2R module, the OPA1612 may be used for reference voltage.
The backside of DAC module, those resistors are used for DSD decoding. There is something behind DAC module.
There are two IC on main board, CS43198 on left and the right IC should be used for upsampling or PEQ.
And there are some ultra low noise regulators surround those two IC.
It is quite interesting to add another DAC CS43198 since Centaurus is a R2R DAC, I guess CS43198 may be used for volume control.
Normally R2R DAC can't do volume control except extra volume control IC or something.
The I/V used Topping discrete module without epoxy coating. I am not sure this module is the same as Topping A70.
The single end converter used OPA1612. The AC coupling caps used Nichicon FW 220uF 16V
And I choose Centaurus duo to R2R is my favorite type of DAC.
Front panel, it is new ID design with LCD display. The painting finish is really good than before.

Back panel, XLR/RCA output, I2S/Coaxial/Toslink/Bluetooth/AES/USB input and trigger. I believe it has all interface we need.

Bottom side, it also updates new foot with bigger rubber which makes more stable on table. The painting finish makes fingerprint more observed.

Inside, this DAC is made by Holo Audio DAC module same with Cyan2

Backside, we can see red screw glue on it to avoid someone teardown.

The power module. There are two portion, digital power DC5V on the left and analog power ±8V on right.

AC input, EMI filter put on main board and we can see ±8V wording on power module.

The digital control portion, XMOS XU316 on left side, Altera CPLD in the center and the IC without top marking should be SPDIF receiver.
SYNWIT MCU is used to control the DAC on the right side, I am not sure why this IC need to scratch out its top marking.

XMOS/CPLD used NDK crystal, I am not sure which series but they should be NZ2520SDA on CPLD.

Holo Audio R2R module, the OPA1612 may be used for reference voltage.

The backside of DAC module, those resistors are used for DSD decoding. There is something behind DAC module.

There are two IC on main board, CS43198 on left and the right IC should be used for upsampling or PEQ.
And there are some ultra low noise regulators surround those two IC.

It is quite interesting to add another DAC CS43198 since Centaurus is a R2R DAC, I guess CS43198 may be used for volume control.
Normally R2R DAC can't do volume control except extra volume control IC or something.

The I/V used Topping discrete module without epoxy coating. I am not sure this module is the same as Topping A70.
The single end converter used OPA1612. The AC coupling caps used Nichicon FW 220uF 16V
