Introduction
Heat dissipation design
HDMI ARC(CEC)
comprehensive Multi-scenario applications
2.1 Channel System Creation
Beyond its comprehensive connectivity, the D4 PRO also boasts built-in professional audio processing capabilities. Its main output features an adjustable high-pass filter (supporting 120Hz/80Hz/60Hz/Bypass), precisely managing the low-frequency limits of the main speakers for clearer mid and high frequencies. Simultaneously, the sub-outputs are equipped with corresponding low-pass filters (also supporting 120Hz/80Hz/60Hz/Bypass), perfectly driving subwoofers and easily creating a powerful 2.1 channel system with clean and impactful crossover effects. Furthermore, it offers independently adjustable high, mid, and low-frequency EQ tuning from -12dB to +12dB, allowing you to meticulously refine the timbre of each frequency band according to music genre or personal preference, achieving a truly personalized listening experience.
High-quality sound is provided.
built-in ESS ES9023P DAC chip, and support for high-definition audio up to 192kHz, the D4 PRO is not only powerful but also ensures that every signal is amplified cleanly and powerfully, meeting the high-quality sound requirements in various scenarios.
High-efficiency heat dissipation design
The D4 Pro employs a highly efficient "integrated chassis cooling" design. Its core power amplifier chip, TPA3255, is directly and tightly connected to the heavy aluminum alloy casing, transforming the entire metal body into a giant passive heat sink. This rapidly and evenly dissipates heat with zero noise, ensuring stability and quiet operation during extended periods of high-power operation.
Intelligent Multi-Device Synergy
When you turn off the TV with a single button on the TV remote, the TV, amplifier, and player will all go silent. All devices will be intelligently linked through a single HDMI cable, and the sound will be automatically transmitted back to the amplifier, completely eliminating the hassle of messy cables and multiple remote controls.
Technical parameters
Specifications
SINAD
Signal to noise ratio
FFT
Model: D4 PRO
THD: ≤ 0.004% @1KHz 5W
SNR: ≥ 93dB @1KHz 5W SNR: ≥ 106dB @1KHz 120W
SINAD: 90dB @1KHz 5W
Input Mode: Balance/RCA/HDMI ARC / BLUETOOTH/ USB /Optical/ Coaxial
Power Supply: 36V5A/48V5A/NO POWER
Working Voltage: 24V~ 48V
Terminating Impedance: 2-8Ω
Frequency Range: 20Hz - 20kHz
Output Mode: Passive speakers/Active subwoofer
SINAD: 90dB @1KHz 5W
Signal-to-noise ratio
High-pass filter
low-pass filter
3 BAND EQ
Main output with high-pass filter and bypass
60Hz high-pass filter parameters：
5th order Butterworth; 60Hz passband; Stopband: Fs: 45Hz, Asb: -12.00 dB
80Hz high-pass filter parameters：
5th order Butterworth; 80Hz passband; Stopband: Fs: 60 Hz, Asb: -12.00 dB
120Hz high-pass filter parameters：
