Topping A30 Pro Headphone Amplifier

It's taken Topping nearly 4 years to release a successor to the highly regarded A30 headphone amplifier. With marked improvements in output power, input options, and noise reduction, the A30 Pro has been worth the wait. Capable of outputting an impressive 6 watts per channel at 16 ohms, 5.5 watts at 32 ohms, and 820 milliwatts at 300 ohms, the power-loaded Pro can easily drive any pair of headphones. Best of all, it can do so with no noise. Its THD + N rating of 0.00006-percent is among the best in its class, while its onboard ground lift switch eliminates ground loop noise instantly. Equipped with UHGF (ultra high gain feedback) technology and an NFCA-based circuit, the A30 Pro also boasts 145 decibels of dynamic range—plus a three-stage gain selector. Connect to a host of single-ended and balanced inputs (with bypass when powered off) to bring your headphones to life.