Topping A90 Discrete Fully Discrete Balanced Headphone Amplifier, 9800mW*2 NFCA Headphone Amp, XLR/RCA/EXT Input 3.5mm/4.4mm/6.35mm/XLR, XLR/RCA Output Preamplifier (Silver)

A90D

• Precise Volume Control : The R2R volume control in TOPPING A90 Discrete, made of relays and resistor networks, provides precise control, longevity, complete channel balance, and remote control for a better listening experience
• Wide Compatibility: TOPPING A90 Discrete is compatible with a variety of headphones, including 4-pin XLR balanced, 4.4mm balanced, 6.35mm single-ended, and 3.5mm single-ended jacks, providing flexibility for different devices
• Multiple Gain Options: With low and high gain options, TOPPING A90 Discrete can drive sensitive IEMs and full-sized over-ears efficiently. Its ultra-low noise level of 0.2uVrms ensures that even sensitive IEMs won't suffer from any noise
• Eliminate Ground Loop Noise: TOPPING A90 Discrete has a GND/LIFT switch to solve ground loop noise problems that may arise when using multiple devices in combination. Switching to LIFT eliminates the ground loop noise
• 12V Trigger interface: It can be set to active or passive control. It can be turned on and off synchronously with other devices equipped with a 12V Trigger interface with an easy-to-obtain 3.5mm to 3.5mm cable, making it hassle-free to operate