**DS4A High-End Audio Decoder - A Sonic Masterpiece for Audiophile Enthusiasts**

Elevate your auditory experience with the DS4A, a premium audio decoder crafted for those who seek the ultimate in sound quality. Here are the standout features that make the DS4A an indispensable tool for any music lover:

### Selling Points:

1. **Sophisticated Audio Design**: Equipped with dual 9038Q2M chips, the DS4A offers a pristine and emotionally resonant sound experience, enveloping you in the magic of every musical note.

2. **Refined Design System**: Validated by AP testing, the DS4A boasts high specifications for superior sound quality.

3. **Advanced Earphone Amplifier Module**: With support for a variety of headphones and a new TPA6120 dual parallel design, the DS4A delivers robust power output and exceptional channel separation.

4. **Versatile Connectivity**: Featuring Cardan, 6.35mm, and now a 4.4mm interface, the DS4A caters to a wide array of headphones, blending music with personal flair.

5. **Powerful Drive Capability**: The single-channel can reach up to 1.8W/32 Ohms, effortlessly powering a broad spectrum of headphones.

6. **High-End Power Supply**: Utilizing a 20W toroidal transformer, the DS4A ensures ultra-low magnetic flux for a powerful and stable audio output.

7. **Diverse Output Options**: The option to connect via Cardan or RCA to your powered speakers or amplifiers for enhanced audio quality.

8. **High-Resolution Audio Support**: The XMOS 208 chip and proprietary driver support up to DSD512 decoding.

9. **Intuitive Control Scheme**: Offering both knob and remote control for user convenience.

10. **Advanced Bluetooth Technology**: Supports APTX/APTX-LL/APTX HD/SBC/AAC protocols, allowing for the enjoyment of high-fidelity music wirelessly.

11. **Versatile Applications**: Suitable for both home audio appreciation and office environments, enhancing the quality of personal and professional spaces.

### Specifications:

- **Model**: DS4A

- **Color**: Silver

- **Body Material**: Aluminum Panel + Iron Shell

- **Dimensions**: 245mm (W) x 50mm (H) x 206mm (D)

- **Audio DAC**: ES9038Q2M x 2

- **Audio Processor**: Second-Generation XMOS Interface 8-Core Processor XU208

- **Operational Amplifier Chip**: OPA1612 x 3

- **Power Supply**: Toroidal Transformer

- **Bluetooth Audio Input**:

  - Module: Qualcomm QCC3040

  - Version: 5.2

  - Supported Protocols: APTX/APTX-LL/APTX HD/SBC/AAC

- **USB Audio Compatibility**: Compatible with Windows 7-11, Mac, Android, iOS systems

- **USB-B DAC Input**: Supports up to Stereo DSD512, PCM 768KHz 32bit

- **Optical Audio Input**: Supports up to DSD64, PCM 192KHz 32bit

- **Coaxial Audio Input**: Supports up to DSD64, PCM 192KHz 32bit

- **Analog Audio Output**:

  - Pre-Output: XLR (Balanced) + RCA

  - Earphone Output: Cardan Balanced + 6.35mm Single-ended + 4.4mm Single-ended

- **Control Method**: Knob and Remote Control

- **Recommended Headphone Impedance**: 16-300Ω for Single-ended, 16-600Ω for Balanced

- **Power Input**: AC 110V 50Hz / AC 220V 50Hz

- **Rated Power Consumption**: 20W