The CP has fair sub-bass quantity with moderate extension. The sub-bass reproduction takes on a fuller approach and there is a satisfying listen. The bass decay is quick and there is tightness. The bass texture is rendered in a smooth manner. The mid-bass has good quantity and the delivery of slam is expressed in an authoritative manner. Each bass note is articulated with strength.
The midrange takes on a lush manner and it boasts moderate transparency level. There is a nice tinge of warmth. The lower midrange has good quantity and there are no signs of hollow feeling. Male vocals are expressed with richness. Emotions are conveyed well. The upper midrange has a slight boost and female vocals are expressed with intimacy. The vocals performance is sweet and controlled.
The treble is extended well with no sibilance and harshness. The amount of air rendered is fair. Treble articulation has moderate precision with a modest level of details retrieval. The crisp is fairly defined with little sparkle. The treble presentation is smooth but it may lack the liveliness for some listeners.
The stage has a natural expansion with a moderate width magnitude. The depth is slightly closed in. There is minimal congestion.
The other filter provides a fuller bass performance and the midrange is not as clear as the pre-installed filter. The treble presentation is less bright. For the soundstage, the width magnitude is slightly less and the depth is more closed in.