The ZMF Caldera is ZMF’s first in-house planar magnetic headphone, built from over a decade of tuning experience, and shaped by ZMF's unique approach to flow, form, and feel. Named after the massive volcanic crater, the Caldera gets its identity from the CAMS (Caldera Asymmetrical Magnet Structure), designed to mirror the shape of a volcano on one side. This asymmetrical structure naturally guides air outward, increasing driver movement and creating a nodal response that maximizes both impact and diffusion.

Combined with ZMF's Atrium Damping System; the result is an open, controlled, and musically weighted sound. The ZMF Caldera produces massive low-end presence, a spacious yet centered stage, and articulate treble that dances with a dynamic headphone-like nimbleness — a rare blend in the planar world.

Now shipping in our new stock wood: Zebrawood — a bold, expressive hardwood with dramatic dark stripes and creamy blond figuring. Known not just for its striking aesthetic, Zebrawood is also a resonant tonewood that supports the Caldera’s punchy, linear character with added energy and crispness. The wood is paired with a Coffee Gold anodized aluminum grille and rods, giving the headphone a refined, high-contrast finish that feels as luxurious as it looks.

The ZMF Caldera also debuts ZMF's new Caldera Pads, featuring a fluted design that transitions from a narrower baffle-side opening to a broader ear-side chamber. This unique shape, like a soft volcanic slope, maintains optimal air pressure while preserving openness in the ear cavity. Available in multiple depths and materials — including cowhide, for added planar synergy — these pads play a vital role in shaping the Caldera’s tactile, immersive sound.

With an 80mm driver, 65 ohm impedance, and 95 dB/mW sensitivity, the Caldera is designed to work well with a range of gear — but like all ZMF headphones, it scales beautifully with powerful, resolving amplifiers.

Inspired by the explosive fun of the early ZMF T50 mods like the Ori and Blackwood, the Caldera carries that DNA forward — but with modern tech, precision design, and ZMF’s unmistakable soul. This is planar done the ZMF way: bold, dynamic, natural, and timeless.