Topping have recently announced the NX7, their latest flagship portable headphone amplifier. It features Topping's NFCA circuit and offers both 4.4mm 3.5mm output port. It is very powerful with 1200mW of maximum output power, which can drive your IEMs and full-sized headphones with headroom to spare. It is available for $179.

Features:

> Newly developed NFCA (Nested Feedback Composite Amplifier) module.

> Slim and easy to carry
> Amazing Output power
> Both 3.5mm and 4.4mm output options
> Three level gain adjustment
> Equally capable of driving sensitive IEMs and High-impedance cans
> Anti mis-touch and anti-breaking design
> Long battery life

Specifications:

Output Power: 1400mW/32ohms

Output Impedance : <0.1ohms

Gain: Three levels(-13.8dB, -0.1dB, 13.9dB)

SNR :135dB @1kHz

Newly developed NFCA Module:

It features the newly developed NFCA Module specially designed for portable amplifier, with and astonishing 0.00007% THD N and 135dB SNR.

Suitable for both Sensitive IEMs and power-hungry full-sized headphones:

With three adjustable gain level and low output impedance, it can drive both IEMs and full sized headphones to their full capability.

20h battery life:

The NX7 is optimized for long battery life. Even with medium gain, you can get 20 hours of battery life, while the performance is still great at 10h for high gain.