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Topping NX7 - Hi-Res Portable NFCA Headphone Amplifier 3.5mm 4.4mm
- Hi-Res Audio
- NFCA Modules
- 3 step Gain Settings
- THD+N @ <0.00007%
- DNR @ 135dB
- Noise @ <0.3uVrms*
- Up to 20h Battery Life
- Output Impedance @ <0.1 ohm
- Max. Output Power @ 1400mW
* The actual noise level is obtained by boosting the noise of NX7 by 100 times using a low noise amplifier in front of the APX555B then dividing the measured noise by 100 times
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.
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 of 3 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 embarassment of the volume setting of high-sensitivity in-ear headphones.
The background noise of NX7 is only <0.3uV, which is inaudible and as quite as the deep ocean. 50mW SNR is 104dB.
The output impedance of NX7 is as low as 0.1 ohm, even if it's driving high-sensitivity IEMs, it will no longer introduce sound colouration. You no longer need to worry about sound matching.
Please refer to the listing picture.