Sound Card ASUS Supreme FX 7.1 PCI-e

Refurbished
Tested

2 x Supreme-FX
1 x Supreme-FXII
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The ASUS SupremeFX is a line of premium, discrete audio cards and integrated motherboard solutions (found in ROG series) designed to isolate analog audio processing from motherboard electromagnetic interference. The legacy add-in card variants (like SupremeFX II and X-Fi) utilize a specialized proprietary PCI/PCI-Express interface to deliver pristine High Definition (HD) audio. [, , , ]

Key Specifications

• Interface: Custom PCI or PCIe x1 (specifically designed to fit into dedicated slots on select ASUS Republic of Gamers motherboards). [, ]
• Audio Processing: Hardware-accelerated with Creative X-Fi technology (in select variants) or high-definition onboard Azalia-compliant codecs. [, ]
• SNR (Signal-to-Noise Ratio): Achieves near-lossless audio, typically spanning upwards of 115dB depending on the specific revision and generation. []
• Capacitors & Shielding: Features specialized Japanese-grade audio capacitors (such as Nichicon) and EMI shielding to block electronic noise. [, , ]
• Impedance Matching: Built-in headphone amplifiers that automatically sense and support high-impedance headphones (often 32 to 600 ohms). []
• Surround Support: Multi-channel High Definition audio outputs, frequently enabling up to 7.1 channel environments. [, , , ]
• Gold-Plated Jacks: Provides corrosion resistance and optimal signal transfer across all analog I/O ports. [, , ]

Technology Features

• EAX Support: Compatible with EAX (Environmental Audio Extensions) for enhanced real-time 3D gaming environments.
• Sonic Studio / SupremeFX Suite: Software packages that allow you to tune your equalizer, enable virtual surround sound, and configure bass boost.
• De-pop Relay: Eliminates disruptive popping sounds during system boot, shutdown, or device connection. [, , , , ]

(Note: While originally shipped as dedicated riser cards for high-end boards like the Rampage series, the SupremeFX name has since evolved into the embedded, isolated audio setup on modern ASUS ROG motherboards). [, ]