Howdy everybody—Omar here, your Audio Amigo. In this episode I’m reviewing the Dunu x Koto ITO (the “ETO” in my video), a bass-head-leaning hybrid collab with Kaji-san out of Japan. I walk through the full unboxing and accessories (Dunu’s modular Leo cable, case, tips, 4.4mm adapter, etc.), talk build and comfort (full resin shells, four vents, no driver flex for me), and then get into the real reason you’re here: how this thing actually sounds. Big takeaway up front: this is a vocal-forward, V-shaped bass set that tries to keep female vocals spotlit while still bringing the boom. On sound, the bass is highly boosted with legit sub-bass rumble and a visceral mid-bass punch—Tiesto’s “Boom” and bass guitar texture were easy wins. The lower mids take a small dip, but not enough to turn the whole presentation soupy or overly thick, and that’s why female vocals surprised me in the best way: they stay clean, energetic, and sparkly without feeling warmed over. Treble is energetic but natural to my ears (not a “treble head” set), and technicalities land solidly for the price—more resolving than Arcadia to me, not quite at Martillo’s level. I also cover output impedance effects (it gets more V-shaped), comparisons to Diablo/Arcadia/Deuce/MK12/Martillo, and why I ranked the ITO in my “This is brilliant” tier.