ASUS Essence STX II 7.1 PCI-e Sound Card, 124dB, TCXO, 7.1

ASUS Essence STX II 7.1 7.1-channel Hi-Fi quality sound card with 124dB SNR clarity, top-notch headphone amplifier and premium TCXO clock source 1. Industry-leading 124dB SNR (signal-to-noise ratio) audio quality 2. Ultra-low jitter from premium TCXO clock source 3. Clean and consistent power supply thanks to WIMA® capacitors and high-fidelity low-dropout (LDO) regulators for uncompromising sound 4. Top-notch headphone amplifier supports up to 600ohm-headphone impedance with a dedicated gain for in-ear monitors (IEMs) 5. Exclusive op-amp swap kit includes three op-amps and tool for easy tone tuning 6. Celebrated MUSES op-amps deliver true-to-life musicality 7. Ultra-fidelity (120dB SNR) 7.1-channel output via the exclusive daughterboard (for STX II 7.1 only) Accessories: Op-amp swap kit x 1 3.5mm-to-RCA cable x 1 6.3mm-to-3.5mm adapter x 1 S/PDIF adapter x 1 Driver CD x 1 Quick start guide x 1 Op-amp swap kit content: 1 x Needle-nose pliers 2 x LME49720 1 x MUSES8820