D3 Basic Version-3 DAC Decoder Assembled Dual PCM1794A Support Coaxial Optic Fiber Inputs RCA Output

D3 Basic Version-3 DAC Decoder Assembled Dual PCM1794A Support Coaxial Optic Fiber Inputs RCA Output

Version Comparison:
D3 Basic Version-1:
- Chip: Single PCM1794A
- Bluetooth: 5.0 (CSR8675)
- Output Ports: RCA + 3.5 headphone jack
- Input Ports: Bluetooth + USB + Type C
- Including external power supply (DC 12V, 5.5-2.1 port)

D3 Basic Version-2:
- Chip: Dual PCM1794A
- Bluetooth: 5.0 (QCC5125)
- Output Ports: RCA + 3.5 headphone jack
- Input Ports: Bluetooth + USB
- Built-in power supply (AC 220V input)

D3 Basic Version-3:
- Chip: Dual PCM1794A
- Output Port: RCA
- Input Ports: Coaxial + optic fiber
- Built-in power supply (AC 220V input)

D3 Standard Version:
- Chip: Single PCM1794A
- Bluetooth: 5.0 (QCC5125)
- Output Port: RCA
- Input Ports: Bluetooth + USB + optic fiber + coaxial
- USB: Onboard
- With display, external power supply, and a remote controller to switch input and turn on/off

D3 Upgraded Version:
- Chip: Single PCM1794A
- Bluetooth: 5.0 (QCC5125)
- Output Port: RCA
- Input Ports: Bluetooth + USB + optic fiber + coaxial
- USB: Italian digital interface
- With display, external power supply, and a remote controller to switch input and turn on/off

Features:
- Fine sound, dynamic balance
- Good sound quality, no delay, no lag. Reduce the secondary loss of sound quality compression, accurately reproduce full audio broadband, HIFI level high fidelity
- PCM1794A chip boasts a high sampling rate and resolution, and a sense of speed and transparency. The low-frequency, mid-frequency and high-frequency sounds are very commendable, and the human voice is round and sweet. It is a very cost-effective chip
- CT7302 receiver solution. PCM 32BIT/384KHZ allows PCM1794A to support DSD and DOP input. CT7302 is a lower S/PDIF receiver than AK4118 jitter
- High sampling rate. Advanced digital input processing chip CT7302, input channel with power-down memory function, low jitter, high sampling rate
- Using MCU program, soft control optimizes the performance of PCM1794A. Turn on and off via the panel keys. Automatically recognize the input signal. Breaking sound elimination technology: Song switching and fast forwarding, sampling rate changes, etc., will produce broken sound, which is solved by soft control
- Using active LPF, and I/V conversion design. Compared with other passive RC structures, it is more conducive to improving the system's response speed to audio, making signal distortion lower, and music dynamics more rapid and powerful
- 3pcs dual op amps: reserve IC sockets, and replace op amps with different music styles by simply plugging in and out, making it more playable
- High-quality power supply: Built-in positive-negative voltage conversion design, which is more conducive to improving the symmetry of positive and negative voltages than other capacitor voltage dividers, making Bluetooth signals for LDAC more stable and PCM1794A decoding smoother
- Secondary voltage stabilization: high-performance power purification circuit design, reducing ripple interference caused by switching power supplies, and providing clean power for DAC and LPF
- Suitable for multiple input and output devices

Product Parameters:
- Size: 120 x 95 x 30mm(LxWxThickness)
- Net weight: 283g
- Input interface: Varies according to different versions
- Output interface: RCA (output level 2Vrms)
- Bit depth & sampling rate: 16-32Bit, 44.1-384kHz
- Power consumption: 0.58W (standby <0.1W)

Package Included:
- 1 x Set of DAC

Note:
- It is assembled.
- Other items pictured are not included, for demonstration purposes only. Thank you for your understanding!

Instructions For Use:
Suitable for home audio and multiple music playing devices.

Operating Procedures:
1. Connect AC adapter to the mains socket and connect to the decoder;
2. According to the audio interface type, connect the Bluetooth adapter to the home audio system;
3. Long press the round button on the decoder panel to turn on, and the screen displays the real-time input channel;
4. Short press the round button to switch between different input channels, long press the button to shut down.