TOPPING NX4 DSD DAC/Amp

The Topping NX4 DSD is a compact DAC/Amp that is easily portable and can be used with laptops or smartphones. It has the Sabre ES9038Q2M DAC and XU208 USB bridge that supports high-res audio that includes 32 bit/768 kHz, DSD256 (DoP), and DSD512 (native). The amp provides 28 hours of playback, while the DAC and amp together provide 7.5 hours of playback. Specs: Power Input: DC 5V/1.5A (PC’s USB 0.5A is okay) Line In/Out: 3.5mm Headphone Output: 3.5mm USB DAC Input: Micro-USB Battery Capacity: 2,400 mAh Charge Time: <4 hrs Playback Time: >28 hrs (headphone amp mode), >7.5 hrs (USB DAC mode) Power LED: Blue light (lights red to indicate low battery) Charge LED: Light red when charging, light green when charge is complete DAC LED: Blue means valid connection and playing PCM format, red means playing DSD format Amp THD+N (A-weighted): <0.0009% at 1 kHz output = 140 mW (32 ohms), <0.0037% at 20 Hz–20 kHz output = 140 mW (32 ohms), <0.0004