Sound Analysis (DCT)


The HUD100 has good sub-bass quantity with moderate extension. The sub-bass reproduction provides a nice rumble and impact is brought out well. The bass decay is on the quicker side of things. The bass texture is rendered smoothly. The mid-bass has moderate quantity and the slam is presented with sufficient punch. There is a satisfying bass performance.


The midrange is being presented in smooth manner and vocals are belted out well. The lower midrange has body and male vocals are expressed without any hollowness. The upper midrange has slight emphasis and female vocals are presented in an intimate manner. There is an organic midrange presentation which contributes to a soothing listen.


The treble is extended moderately and there is no sibilance and harshness. There is a smooth expression and it ensures a fatigue-free listen. There is a slight lack of crisp and sparkle. The amount of air rendered is acceptable. Treble articulation is average. There is a more laid-back nature and there is a relaxing listen.


The HUD100 has a natural expansion in its stage and the width magnitude is moderate. There is good amount of depth rendered.

Bypass Mode

There is higher transparency level and vocals are presented with greater clarity. The amount of air is greater and treble expression is more defined.

Dynamic Mode

There is a stronger bass expression with more punch. Vocals have greater emphasis and there is a more forward presentation.


The HUD100 is a versatile DAC that is able to provide 3 different sound modes for different music genres. The Bypass, DCT & Dynamic modes gives a crystal-clear, balanced & punchy sound respectively. In addition, the HUD100 is small and convenient to use. The Radsone HUD100 is an excellent portable DAC.