Topping NX3 HiFi Portable Headphone Amplifier with TPA6120A2 Chip

SKU: FN462
Price: US$69.98
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  • Adapt to the charge output of computer USB port.
  • USB Intelligent Charging.
  • 2400mAh Large-capacity Battery.
  • Charge Output of Computer USB Port and Varitey of Plugs.




Innovation Power Supply Design

USB intelligent Charging
By internal NX3 it's a 2400mAh large-capacity litchium polymer battery,charging 0.5hour,it can work 5 hours.
NX3 is able to drive high impedance headphones which enough dynamic level range
NX-3 can adapt to the charge output of computer USB port and varitey of plugs. It automatically adjust the suitable charging current with the fastest speed to supplement the battery.


Aluminum shell,although automatically produced in the high accurate processing center,it also need 46 technology from Aluminum block to finished product.

The two color appearance,was produced with polishing technoloy to get the effect which is the same as MACBOOK


Low Power alert
When low battery,NX3 power source light will turn red to remind you to charge,and the remaining power can support the machine for
0.5 hour.
Double channel intelligent charge(patent)
no matter 0.5A output of PC USB socket or 1A output of phone charger.
NX3 can identify and automatically charge with signal channel(0.5A) or double channel(1A).
When use 1A,the charging time is less than 4 hours.
It will matching 1A charging current when the output of charger is more than 1A.



Working hours:25 hours
Minimum distortion:0.0018%
Output voltage swing:8.3Vpp
Audio in interface:1 x 3.5mm
Digital Noise Floor:<9μV(GAIN=L)
Headphone output interface :1 x 3.5mm
Suitable Headphone Impedance: 16-300Ω
Input Sensitivity:1Vrms(GAIN=L);0.52Vrms(GAIN=H)
Dimensions(contained out part): 66 x 108 x 13 mm
Frequency range:10-100kHz(Flatness20-20kHz±20dB)
Maximum Output Power: 103mW (RL=16Ω,THD+N=1%)
                                         98mW (RL=32Ω,THD+N=1%)
                                         30mW (RL=250Ω,THD+N=1%)
Typical distortion(@1kHz):0.0031%(RL=32Ω,Pout=5mW)


1 x Topping NX3
1 x Silicone Band
1 x Service Card
1 x Audio Cable
1 x USB Cable
1 x Manual
1 x Velcro

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