D8 HiFi Digital Power Amplifier STA328 USB DAC PCM5122 Decoder Support 14 EQ Modes for XMOS

Key Features:

- Supports fiber optic, coaxial, USB, and analog inputs, with up to 192K and a 24 bit sampling rate.

- Supports power amplifier and headphone output, 80Wx2 at 4ohms; Supports waveform and spectrum display.

- Supports 14 EQ modes, -12dB ~ +12dB treble and bass adjustment.

- Automatic power on/off protection, infrared remote control and rotary encoder control.

Description:

- Integrating power amplifier and DAC to meet the diverse needs of HiFi system construction, with built-in decoding chip and support for common digital inputs.

- AK5358 is a high-performance A/D conversion chip that supports 96Khz/24bit conversion, 102dB SNR. It converts analog signals into digital signals and has strong compatibility.

- Digital receiving core chip: WM8805 has a lower Jitter (50fs), supports 192Khz/24bit signals, and performs better than CS8416, DIR9001 and other chips.

- For XMOS asynchronous USB audio solution: Compared to synchronous USB, asynchronous USB has lower jitter and can achieve good sound quality, durability, and charm. At the same time, it supports 384Khz/32-bit audio output and ASIO (low latency), which is better than typical USB sound card solutions.

- High performance AB class headphone amplifier chip: with a signal-to-noise ratio of 112dB, provides 125mW/channel driving capability for 32ohm headphones, and can drive 600ohm high impedance headphones.

- Output inductance: Using for ST's recommended square inductance for digital amplifiers, it has the characteristics of small magnetic leakage, strong anti-interference, high output current, beautiful high notes, sweet mid notes, and rich bass.

- Output filtering capacitor: Adopting for Siemens HiFi Film capacitor, which has the characteristics of small loss cutting angle, high accuracy, and high resolution.

- Main filtering capacitor: Using for Nichicon's well-known high-frequency low impedance audio specific electrolytic capacitor, with low ESR, first-class quality, and excellent performance, it is very suitable for audio circuit use. The total capacity is 4700uF, providing ample power reserve for the whole machine and experiencing the feeling of bass explosion.

- Using for STMicroelectronics Cortex M3 ARM processing core, joint software control is implemented for WM8805, STA328, and PCM5122. A real-time operating system is used to process control instructions in a timely manner and monitor system status in real-time, with automatic recognition of sampling rate.

- Using for ST digital audio dedicated amplifier chip STA328 and DDX technology, tri state modulation integrated technology for Sound Terminal, fully digital signal processing, no AD conversion, improved SNR, and compensated correction for output.

- Using for TI grade DAC chip PCM5122, it has a signal-to-noise ratio of 112dB and a total harmonic distortion of 0.003%. It supports up to 384Khz 32-bit audio playback, providing a master level sound quality experience. It has no burrs at high frequencies and good diving power at low frequencies, making it very suitable for audiophiles.

- HiFi sound quality, independent treble and bass adjustment: supports 14 EQ modes, including: standard, balanced, rock, soft rock, jazz, classical, dance, pop, soft, tough, party, vocal, rap, and dialogue. (Note: EQ effect is not used in standard mode, but treble and bass can still be adjusted.); In other EQ modes, both treble and bass can be used in combination.

- Power separation design: 6 sets of power supplies, amplifiers, analog, digital, MCU, etc. are all powered separately to reduce interference, improve signal-to-noise ratio, and reduce noise floor. For NCC solid-state capacitors with low ESR are used to effectively improve sound quality.

- Automatic power on/off: with a certain intensity of audio input, it automatically turns on; If there is no operation within 15 minutes, it will automatically shut down.

Specification:

- Input: fiber optic, coaxial, USB, analog

- Output: digital power amplifier output, headphone amplifier output

- Sampling rate: 44.1kHz - 192kHz (fiber optic, coaxial); 44.1kHz - 192kHz (for XMOS-USB, need to install drive); 44.1kHz (PCM2704-USB)

- Bit width: 16 - 24 bit

- Frequency response: 20Hz - 20kHz

- Rated power: power amplifier output (80W x 2 at RL = 4ohms)

- SNR: headphone amplifier output (2 x 125mW at RL = 32ohms)

- Dynamic range: power amplifier (100dB); headphone amplifier (112dB)

- Product size: 140 x 110 x 32mm

- Net weight: 490g

Package Included:

- 1 x Power Amplifier

- 1 x USB Data Cable

- 1 x 28V 4.3A Power Adapter 120W

- 1 x Remote Control