Ocharaku Flat-4 Akakeyaki VS Intuaura Purple

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Intuaura Purple brings a polished, pricey package: lush purple shells, a comfy fit, and a cable that looks the part—even if the accessories feel recycled from cheaper siblings. The kicker is the optional DSP dongle (~$65) that re-voices the set; without it, the Purple already sounds clean, punchy, and engaging, with strong clarity and respectable stage. Snap the DSP on and the tuning shifts toward flatter, smoother treble and tidier FR, but soundstage shrinks a notch and the presentation loses some air. It’s a dramatic EQ-by-hardware move—effective, yes, but it turns one IEM into two different takes, which raises the question: which tuning is “the” Purple?

As a pure IEM at $650, Purple holds up: comfortable, easy to enjoy across sources, and free of obvious sibilance when left stock. Compared to lower-priced models that seem to need their DSP to shine, this one doesn’t; the dongle just complicates the decision with a second signature riding shotgun. Verdict: a confident 8/10 for the IEM itself—good build, enjoyable tonality, solid technicals—tempered by the mental tax of the bolt-on DSP path. Buy for the purple “puppy”; don’t let the extra “Honda Civic” in the box talk you into second-guessing what already works.