The enhancement in tuning is the main change for the Tripowin x HBB Olina SE. Compared to the Olina original, the Tripowin x HBB Olina SE's redesigned CNT driver provides a 'stronger' sub-bass impact, as indicated by a 3dB increase at 10Hz. This upgrade considerably reduces sub-bass roll-off and enables a punchier and more muscular sub-bass response. The treble of the Olina SE has also been 'dampened' to eliminate peakiness in the vocal and upper harmonic frequencies. Comparatively speaking, this has a more organic treble response than the original Olina. In contrast to the original Olina, you will notice greater evenness in the upper frequencies with no loss of detail retrieval.