TPA3255 Amplifier and AK4493S Decoder with HDMI ARC Bluetooth5.4 USB Optical Coaxial RCA input

Specifications：

Model: D3 PRO
THD: ≤ 0.003%
SNR: ≥  93dB@5W  4Ω, 116dB@110W  4Ω
SINAD: 92dB@5W   4Ω, 86dB @110W  4Ω
Input Mode: HDMI ARC / BLUETOOTH/ USB /Optical/ Coaxial /RCA/ U Disk
Power Supply: 36V5A/48V5A/NO POWER
Working Voltage: 24V~ 48V
Terminating Impedance: 2-8Ω
Frequency Range: 20Hz - 20kHz
Output Mode: Passive speakers/Active subwoofer /RCA Output

This is a TPA3255 amplifier, and it is also an AK4493 decoder.

-RCA input/output multiplexing: RCA is not set to input status, but converted to pre-amplifier output (audio source sharing mode).

-There are four working modes:

 Decoding mode: D-F mode, D-B mode;

 Amplifier mode: A-F mode,  A-B mode.

Mini amplifier, Multiple inputs, Custom Tone, Big Power, Low Distortion

-TPA3255+PFFB technology: Eliminates load dependency.

-Full-scenario connectivity: HDMI ARC synchronizes volume with TVs, Bluetooth 5.3, optical fiber, coaxial, RCA, and USB multi-inputs create a 2.1-channel sound system.

-Powerful USB digital interface: XMOS XU316, supports up to 768kHz PCM and DSD525.

-DAC: AMK AK4493S.

HDMI ARC audio and video synchronization

--The volume can be adjusted in real time with TV remote control to create a home theater experience

Qualcomm QCC3084 Bluetooth5.4, supports LDAC/SBC/AAC/aptx/aptx-HD/aptx adaptive/aptx-lossless

--It can easily connect to smartphones, tablets, computers, tablets, etc., allowing you to easily enjoy the convenience and speed of wireless.

Powerful USB digital interface: XMOS XU316, USB Audio Amplifier for PC

--Supports up to 32-bit/768kHz PCM and DSD512.

--Provide high-fidelity audio for PC and laptops, making up for the lack of power and audio quality of built-in sound cards.

--You can also experience playing music by connecting a USB flash drive via an extension cable.

The AK4493S flagship DAC (supports PCM 768kHz/DSD512)

-TPA3255 PFFB amplifier (300W x 2 @ 4Ω) combine high-resolution decoding with pure amplification.

High-Quality Components

--Nippon Chemi-Con capacitor .

--4 single inductors.

--Nikon coupling capacitor, WIMA capacitor

Replaceable OP-AMP CHIP

--The OPA1656 op amp is standard

--it compatible with mainstream models and can be replacedfreely to meet personalized listening needs

PFFB solves load dependency

--PFFB technology eliminates load dependency, enhancing performance and sound quality significantly

2.1 channel audio system creation

--SW OUT output connects to active subwoofer, 

--Low-pass filter, adjustable from 40Hz to 200Hz

Audio control system

--NJW1194 electronic volume chip, supporting ±10dB bass and treble adjustment.

Explore the Power of the TPA3255 Amplifier

RCA Technical Parameters

RCA @4Ω  5W

RCA @4Ω  110W

RCA 4ohm 5W  Signal to Noise Ratio

RCA 4ohm 110W Signal to Noise Ratio

 XMOS USB Technical Parameters

USB @4Ω  5W

USB @4Ω  110W

USB 4ohm 5W Signal to Noise Ratio

USB 4ohm 110W Signal to Noise Ratio

PFFB  4ohm and 8 ohm frequency response

Noise  FFT

Unmatched Power and Clarity

The TPA3255 Amplifier offers an outstanding audio experience, delivering high power and clarity. This amplifier uses advanced technology, ensuring that every note and beat in your music is amplified with precision. You will appreciate its ability to handle high volumes without distortion, which makes it a perfect choice for music lovers who value quality sound. With the TPA3255, you can enjoy music as it was meant to be heard, and that's why so many choose this amplifier over others.

Versatile Connectivity Options

This amplifier stands out not just for its power but also for its connectivity options. Featuring HDMI ARC, Bluetooth 5.4, and multiple inputs such as USB, optical, coaxial, and RCA, it allows you to connect various devices effortlessly. Whether you want to hook up a TV, a gaming console, or stream music from your phone, the TPA3255 Amplifier makes it seamless. Because of this versatility, you can enhance your home audio system without hassle.

Superior Sound Processing

The inclusion of the AK4493S Decoder in this amplifier takes your auditory experience to the next level. It processes sound with remarkable detail and dynamic range, making it suitable for both music and movies. Whether you are watching an action-packed film or listening to an orchestral piece, you will notice the richness of the sound. This is essential for enjoying all types of media, and that’s why the O-NOORUS D3 PRO is the preferred choice for audiophiles.

High Power Output for Dynamic Sound

The TPA3255 Amplifier is designed to deliver high-quality audio performance. With its robust power output, this amplifier can drive large speakers with ease. Because of its efficient design, it minimizes distortion and promotes clear sound reproduction, making it ideal for both casual listening and serious audiophile experiences. You will appreciate the power it brings to your music and home theater setups.

Versatile Connectivity Options

Equipped with HDMI ARC, Bluetooth 5.4, USB, Optical, Coaxial, and RCA input, the TPA3255 Amplifier provides unmatched versatility. This variety of connectivity options means you can easily link your favorite devices. Whether you want to stream music wirelessly or connect via traditional wired methods, this amplifier has you covered. So, you can enjoy your media without the hassle of compatibility issues.

Advanced Decoding with AK4493S

The inclusion of the AK4493S decoder elevates your audio experience further. This high-performance DAC ensures accurate signal conversion and enhances the sound quality across all inputs. Likewise, it accommodates various audio formats, providing remarkable clarity and detail. As a result, you can immerse yourself in your favorite content with pristine audio fidelity, making it an essential component for music lovers and film buffs alike.