Nightjar Duality VS Canpur CP622B

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Nightjar Duality presents as a $3,000 dual-dynamic IEM with a focus on premium build and ergonomics: a bespoke shell that seats comfortably, a recessed 2-pin, and user-tunable hardware via onboard switches and an included impedance adapter that can push bass even further. Packaging includes multiple thin, lightweight cables and even a powered dongle option. The craftsmanship feels boutique, and the faceplate aesthetic underscores its luxury positioning.

Tonally, this is a bass-forward set with two personalities: a “normal bass” configuration that retains balance and a “crazy bass” mode that becomes emphatically sub-heavy. Treble carries air and decent detail without chasing a hyper-analytical edge; mids are serviceable but a touch off, responding well to a bit of EQ. Overall dynamics hit hard, staging and clarity remain clean enough for the tuning goal, and the tuning reads as an enjoyable, romantic DD presentation—just not the final word in microdetail at this price.

In context, alternatives frame the value conversation: Grand Maestro is cited for stronger detail/air and driver refinement (though Duality fits better), while options like the Origin, Zen Magrid T Pro (~$500), Effect Audio Quantum, and even the budget Aether planar show that similar or complementary traits exist at lower brackets. Compared with sets such as Scarlet Mini or Maestro Mini, Duality’s bass shelf and presence balance feel more considered. Verdict: a unique, fun bass-head flagship with excellent design and ergonomics; the price is the hurdle, so demoing at events like CanJam is strongly advised before committing.

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Canpur CP622B makes a striking first impression with a premium case, tidy accessories, and a shimmering faceplate—but the shell is huge, bordering on chunky, and can push fit comfort limits over longer sessions. Sonically, it hits with authoritative sub-bass and impressive extension, yet the overall presentation skews dark; vocals sit a touch recessed, with a wish for more 1.5–3 kHz presence and a bit more upper-air sparkle. Out of the box it already thumps, but a light EQ lift to upper mids and bass can coax out more vibration and energy.

On graphs and in A/Bs, the CP622B comes off as a specialist: fantastic low-end texture (bass judged around 9.5 for level), solid resolution and stage, but imaging feels slightly constrained by the muted 3 kHz region. Compared with peers, FATfreq Grand Maestro reads like the safer “one-and-done” all-rounder with more flair up top; Aful Cantor delivers comparable presence at a fraction of the cost; Hisenior Mega5-EST Bass offers a friendlier fit and a tuning that can feel just a hair more balanced; and as a personal north star, Elysian Annihilator 2023 still sets the bar for extension and excitement. Net: a fantastically built, bass-thrilling CP622B that shines with hip-hop/R&B and cinematic lows, but reads as niche and pricey—a connoisseur’s piece for big collections rather than a first-pick endgame.