HIFIAMP AXF-16PRO+ PCIe Sound Card HIFI Internal Sound Card for PC with Optical and Coaxial Outputs

HIFIAMP AXF-16PRO+ PCIe Sound Card HIFI Internal Sound Card for PC with Optical and Coaxial Outputs

Attention:
* To ensure compatibility between the sound card and motherboard, please provide a photo of your motherboard to customer service before ordering. Thank you!

Description:
HIFIAMP AXF-16PRO+ delivers a HiFi audio experience.

Equipped with high-quality audio processing chips, it supports industrial control broadcasting systems. With the ES9038Q2M DAC chip, the sound card is ideal for audiophile-grade speakers and headphones — perfect for gamers, music lovers, and home theater enthusiasts. The built-in chip supports high-definition audio formats, providing pleasant HiFi sound quality.

AXF-16PRO+ supports:
* 2.0 speaker systems and headphones
* 2.1 speaker systems
* Multiple sets of speakers and headphones used simultaneously
* HiFi amplifiers and DACs
* Simultaneous use of headphones and speakers via the sound card's control software
* Optical digital speakers, digital amplifiers, and digital DACs

And its optical and coaxial outputs support DTS and Dolby (under Windows systems).

Features:
AXF-16PRO+
* For most speakers, DACs, and amplifiers, using the coaxial audio output provides higher resolution compared to other interfaces.
* It supports native ASIO.

Sound Card for PC
* HiFi high-fidelity sound reproduction does not add effects or equalizers. Our developed sound card is for listening—music, audio-visual, and gaming—all focused on pure listening.
* It preserves music details and analysis, restores audio-visual and game effects.
* We removed the software control panel because it causes significant original sound loss and greatly hinders audio quality improvement.

Professional HiFi Internal Computer Sound Card
* The sound card supports both bitstream (source) output and decoded output.
* The digital optical and coaxial outputs provide bitstream output because the main controller chip is a pure digital chip.
* The RCA, balanced (big three-core), and 3.5mm (AUX) outputs are decoded outputs of the sound card.

A Different Sound Experience
* ES9038Q2M Flagship Chip
* Native ASIO 2.2
* Pure Digital Main Controller Chip for C-MEDIA
* Exclusive DA Circuit
* Multiple Fully Discrete Power Supplies for Clean and Low Noise Performance
* 6.35mm Balanced TRS (Big Three-Core) Interface
* Four Active Crystal Oscillators for Enhanced Sound Quality
* For Full MQA Decoding
* DSD512 Support
* High-Performance Op-Amp with User-Replaceable Capability

ES9038Q2M Sound Card with Balanced Output
* It supports ES9038Q2M decoding, balanced output, and DAC headphone amplifiers.
* The sound card's main control chip is a pure digital chip.
* The optical and coaxial outputs are pure digital outputs — the output format matches the input source (bitstream output).
* It supports DTS and Dolby bitstream output from the computer, making it ideal for connecting to DACs, tube amplifiers, multi-channel amplifiers, surround speakers, and soundbars.

Solid-State Capacitors for Greater Stability
* It is equipped with high-power capacitors to control digital output.
* It delivers up to 129dB signal-to-noise ratio (SNR) and extremely low harmonic distortion (~0.00003%). Thus, it is an ideal entry-level choice for audiophiles.

ES9038Q2M DAC Decoding
* It is equipped with four high-precision crystal oscillators, providing a highly stable and low-noise clock signal for superior audio clarity.

Five Replaceable Op-Amps
* The sound card is equipped with five swappable op-amps.
* For most users, the default op-amps already deliver excellent performance. However, those seeking enhanced audio quality can purchase and replace the op-amps themselves.

Audio Quality Enhancement
Compared to onboard (integrated) sound cards, the independent sound card offer the following improvements:
* Cleaner background noise – Enjoy a more silent, interference-free listening environment.
* Improved detail resolution – Hear more musical nuances in the same track.
* Greater sound fidelity – Better emotional expression and a more pleasant, natural tone.

Immersive Surround Sound
* The sound card's optical and coaxial outputs support digital bitstream output and are compatible with DTS and Dolby (Windows system required).
* Built on years of audio engineering experience and real user feedback, this listening-focused multifunction audio card uses digital signal processing to help you easily recreate a cinema-like or concert hall soundstage at home — delivering a pure, clear, and powerful audio experience.

Protect Your Audio Equipment
* AXF-16PRO+ features refined audio signal processing and control to ensure clean output and stable frequencies, while greatly reducing electromagnetic interference.
* It helps enhance audio quality, protect speaker components, and assist in audio conditioning and speaker break-in.

Enjoy High-Quality Music
* For sound testing, we recommend using high-quality audio files with larger file sizes, as these preserve more sonic detail and are better for evaluating your audio system's performance.

Usage Scenarios
* The sound card is ideal for watching movies, gaming, and listening to music, allowing you to enjoy clean and high-fidelity sound.

Supported Systems:
* For Microsoft Windows XP/Vista/Windows 7 (32-bit, 64-bit)/Windows 8 (32-bit, 64-bit)/Windows 8.1 (32-bit, 64-bit)/Windows 10 (32-bit, 64-bit)/Windows 11 (32-bit, 64-bit), Tongxin UOS, HarmonyOS, Daphile OS (cannot use digital versions), Windows Server, China-made Kylin OS, Linux, etc., it supports driver-free operation. Windows systems can also be used without drivers. Most domestically produced systems in China are supported.

About Settings on Your PC:
1. Speaker Output
* Selecting "Speaker Output" controls the following sound card outputs: Dual RCA (red and white), 3.5mm AUX and 6.35mm left and right balanced outputs.
* The sound card outputs DSD audio through these three groups of interfaces.
* The 3.5mm and 6.35mm outputs provide stronger output drive; please do not set the volume too high when using these ports.
* Customers can also change the sound signature by replacing the operational amplifier (op-amp).

2. SPDIF Output:
* SPDIF output controls the sound card's optical and coaxial digital audio outputs. Both interfaces output simultaneously, transmitting bitstream-encoded audio sources.
* Generally, the maximum digital output sampling rate from a computer is 24-bit, 192kHz. To play audio at this sampling rate, a compatible media player (such as Foobar2000) is required.
* For playing DTS or Dolby audio via the sound card, the sound card’s optical or coaxial output must be connected.
* Digital output will provide stereo output when playing stereo audio, 5.1 output for 5.1 audio, and usually 7.1 output for 7.1 audio.
* Playing audio above 5.1 channels on a computer system also requires specific players.

Sampling Rate Output:
After installing the sound card driver, the computer's sampling rate setting cannot be adjusted from the system side. Instead, a music player (such as Foobar2000) with exclusive output is required. The computer system supports a maximum playback sampling rate of 24-bit / 192,000 Hz.

DSD audio file sampling rates:
DSD64: 2,822,400Hz (14.7 times 192,000Hz)
DSD128: 5,644,800Hz
DSD256: 11,289,600Hz
DSD512: 22,579,200Hz

Our sound card's digital chip and DAC support DSD512. Our technical team has tested perfect playback of DSD64, DSD128, DSD256, and DSD512. To play DSD512, you must set the output to ASIO + DSD. Because DSD playback requires high hardware performance, the AXF-16PRO+ uses four high-precision active crystal oscillators, five independent operational amplifiers, a gold-plated PCB, and active capacitors and resistors — all designed to enhance sound output quality.

For real DSD playback with Foobar2000: 1. Set the output to ASIO (set DSD512 to ASIO + DSD). 2. In SACD settings, select DSD.

Packing List:
* 1 × Sound Card with Shell
    
Packaging Details:
* Weight: 0.5kg

Note:
* This product requires a certain level of hands-on ability, as it needs to be installed into a computer manually.
* The sound card specifically designed for listening only — it does not support singing, live streaming, or recording!
* Generally, for our sound card, the RCA and 6.35mm balanced interfaces provide better vocal performance, while the coaxial port offers superior resolution. Optical port delivers a cleaner signal with strong interference resistance (it's typically used to avoid GPU interference).