The sub-bass of the K6 is extended well with control. The sub-bass reproduction is full-bodied and provides good impact. The bass decay is quick which contributes to the engagement level while the bass texture is rendered smoothly. The mid-bass has fair body and the slam is delivered in an agile manner. Each bass note is articulated in a precise and smooth hit. The K6 has a good balance and it is able to deliver an impactful bass performance without any signs of dense feeling.
The midrange is presented in a smooth manner with a tinge of warmth. The K6 is able to present its midrange soothingly and vocals are relaxing to listen to. The lower midrange has fair quantity and male vocals are expressed without any dryness. The upper midrange has slight forwardness and female vocals are expressed in a sweet manner with effective conveying of emotions. The K6 has a warm and lush midrange that is pleasing to listen to.
The treble extends well with no sibilance and harshness. The treble has good body and it is presented in a controlled manner. The crisp is well-defined with slight sparkle to inject some excitement at the top end. The amount of air rendered is moderate. The treble expression is detailed and smooth which results in an relaxing listen. The K6 displays its treble with a good balance of liveliness and control.
The K6 expands with good naturalness and the width has good magnitude. The depth is slightly closed in with sufficient space. Positioning of vocals and instruments is quite accurate.