Topping NX7 Review

March 18, 2023
David Sunnyside

topping nx7 review

The NX7 is the Topping brand's latest and greatest portable amplifier with 3.5mm and 4.4mm Jack outputs, NFCA amplification and Hi-Res Audio certification. It has up to 20 hours of battery life and can be charged via a Type-C connector.


The box design for the NX7 is a little different from what I've seen from Topping in the past. It has a textured outer layer and is much more stylish than their simpler, white/black boxes. Inside the box, you'll find a few accessories including a 3.5mm to 3.5mm cable, a 4.4mm to 4.4mm interconnect and a USB-C to USB-A short cable for charging.


The NX7 features a new NFCA amplifier circuit that is designed specifically for portable amplifiers. Its low idle power consumption allows for extended battery life, while delivering 0.00007% THD+N and 135dB SNR.

It is also powerful enough to drive both demanding headphones and sensitive IEMs. It can deliver up to 180mW of high power under a load of 300 ohms, with 3 stages of gain for easy adjustment.

Unlike most portable amps, the NX7's input impedance is very small (0.1O) which means it will work with any kind of earphone or headphone. Moreover, the NX7's output impedance is incredibly low and won't add any colouration to your sound.

Power Ratings

The power ratings are quite good for an all-in-one, dap, dacamp or dongle at under $500 - 1.4 watts into 32O and 180 milliwatts into 300O. The output noise is incredibly low too, measured at 0.3uVrms and distortion levels are very low too.

David Sunnyside
Co-founder of Urban Splatter • Digital Marketer • Engineer • Meditator
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