Topping NX7, Portable Amplifier: for IEMs NFCA USB AMP (NX7)
Easily drive the full size headphone with high performance: The NX7 can output 180mW of high power under a load of 300 ohms, and with the help of3 step gain setting, the small body can easily beat the full-sized headphones. It is worth mentioning that even when the output is 200mW, the load distortion is only 0.00008%.
Equally outstanding while driving IEMs: The low gain of NX7 is -13.8dB. When used with high-sensitivity in-ear headphones, there will be almost no trouble of potentiometer bias in the comfortable volume range. You will no longer need to worry about the embarrassment of the volume setting of high-sensitivity in-ear headphones.
NFCA amplifier: The new NFCA amplifier circuit is specifically designed for portable amplifiers. The low idle power consumption allows for extended battery life. This is done while having 0.00007%THD+N and 135dB SNR. It's powerful and clean enough for power-hungry full-sized headphones and sensitive IEMS.
Anti-mistouch and anti-breaking design: NX7 is designed with corner guards at both ends to protect the entire panel, effectively preventing the volume knob from being mistouched in the pocket, and greatly reducing the possibility of breaking the headphone plug.
20h battery life: Due to the optimization for portable devices, the NX7 can get 20h of battery life at low and medium gains; even if it is switched to high gain, it can also get 10h of battery life.