The NX3s Topping is a portable, battery-powered headphone amplifier that is ideal for enjoying improved sound at home or on the go. The device offers a high quality design, using only high-performance components.

Beyond Hi-Res audio

NX3s benefits from Japanese Hi-Res certification, which guarantees superior sound quality. For this purpose, the amplifier is able to reproduce a frequency range from 20Hz to 200kHz, ensuring an impressive level of detail, far from a CD quality (20Hz-20kHz) or standard Hi-Res (20Hz-40kHz).

Comfortable output power

Portable Headphone Amplifier on Battery Hi-Res OPA2140 + LME49720 Capable of delivering a power of 2x545mW under 300Ω (THD+N <1%) or 2x100mW under 32Ω (THD+N <1%), the NX3s is able to support a large majority of headsets on the market.

Excellent performance

The overall performance of the amplifier is excellent, with a THD+N of less than 0.0017% at 1kHz, for an output of 273mW at 300Ω or less than 0.0003% at 1kHz for an output of 50mW at 32Ω The noise level is less than 2.5µVrms with the gain set to "low" or less than 6.5µVrms with a gain set to "high". Finally, the SNR is higher than 120dB. These measures ensure a precise, rich and clean restitution.

Bass Boost & Gain Setting

The NX3s Topping offers a Bass Boost mode (can be activated or not) to increase the reproduction of low frequencies for a lower sound or a gain setting between 0dB (Low) and 8.8dB (High). This last setting allows it to adapt to more than one source.

High quality components

All the circuits include high quality components, which are at the heart of the NX3s' sound quality. These are only HiFi components such as an ALPS potentiometer or WIMA capacitors.