Radsone HUD100 MK2 DAC/Amp

In the realm of compact DAC/amps, Radsone has carved an impressive niche with models like the ES100 MK2 and the HUD100. Now, the company is going even smaller with the new HUD100 MK2: a palm-sized DAC/amp with performance features that surpass its predecessor. No bigger than a pack of dental floss, the HUD100 MK2 supports 32-bit / 384-kilohertz PCM decoding, as well as DSD 128 decoding. The first DAC to adopt an ARM Cortex processor and MEMS oscillator, it uses Radsone’s latest proprietary algorithm to minimize jitter. It also features three listening modes: bypass mode for pure sound (ideal for sending signal to another amplifier), DCT mode for an analog-like sound, and dynamic mode for a Radsone-tuned sound signature with extra punch. Plus, it has a high-power output for high-impedance headphones. Bringing these features together, an elaborate eight-layer circuit design ensures low distortion.

Great for solo listening or pairing with one of Radsone’s many coveted DAC/amps, the EarStudio HE100 IEM delivers immersive audio for listeners on the go. The HE100 features a single Hi-Res dynamic driver that minimizes partial vibration sometimes found in IEMs, while expressively articulating across all frequencies (especially high frequencies). Topped off with aluminum housing that’s both durable and lightweight, the HE100 is a great choice for immersive listening from anywhere. As Major HiFi’s review puts it: "If you’re looking for a well-balanced sound, and a flood of detail, the Radsone Earstudio HE100 will not disappoint."