HEDD Audio HEDDphone TWO

The HEDD Audio HEDDphone TWO is an open-back, over-ear reference headphone built for audio professionals and serious listeners, developed over three years of R&D and direct user feedback to refine every aspect of the HEDDphone platform. A redesigned Air Motion Transformer driver with Variable Velocity Transformation (VVT) and a Kapton polyimide diaphragm delivers exceptional frequency extension from 10 Hz to 40 kHz alongside superior transient response, accurate timbre, and a natural, detailed sound signature. Carbon fiber and magnesium construction keeps weight to 1.2 lbs, and HEDD’s HEDDband system adjusts height, width, curvature, and clamping pressure independently for a secure, comfortable fit across extended listening and working sessions. The HEDDphone TWO is also available in an UNPLUGGED configuration, which includes the headphone and carry case without cables.

Key Features

• Redesigned AMT Driver with VVT: Handmade in Berlin, the updated Air Motion Transformer features a Kapton polyimide diaphragm and Variable Velocity Transformation geometry for even frequency response, superior transient accuracy, and natural, uncolored reproduction across the full 10 Hz to 40 kHz range.
• Variable Velocity Transformation (VVT): A HEDD innovation that rethinks AMT driver geometry — varying fold width and depth across the diaphragm — to achieve even, flat response across the entire audio spectrum, making the HEDDphone the world’s first full-range AMT headphone.
• HEDDband Adjustable Headband: HEDD’s smart strap system adjusts height, width, curvature, and clamping pressure independently, distributing weight evenly and accommodating heads of any shape or size for extended, fatigue-free use.
• Lightweight Premium Construction: Carbon fiber and magnesium components minimize weight to 1.2 lbs while providing the structural durability required for long-term professional use.
• Faux Leather Ear Pads and Head Cushion: Soft faux leather padding provides comfort and consistent acoustic seal across extended sessions, with a spare set of ear pads included.
• Kevlar-Infused Braided Cable: A durable Kevlar-reinforced braided cable construction is included in both balanced (4.4mm Pentaconn, 2.2m) and unbalanced (6.35mm, 2.2m) configurations, with adapters for 3.5mm and XLR 4-pin.
• UNPLUGGED Configuration Available: The same HEDDphone TWO with carry case and without cables, for those who prefer to supply their own.
• Handmade in Berlin: Each HEDDphone TWO is built with high-quality, durable components and backed by a 5-year warranty after registration.

Specifications

• Type: Open-back over-ear headphone
• Driver: Air Motion Transformer with VVT technology, Kapton polyimide diaphragm
• Frequency Range: 10 Hz – 40 kHz
• Sensitivity: 89 dB SPL at 1 mW
• Impedance: 41 Ω (flat)
• Power: Min. 200 mW, recommended ≥1000 mW
• Ear Pads: Faux leather (spare set included)
• Connections: 3.5mm jack
• Cable: Kevlar-infused braided; balanced (4.4mm) and unbalanced (6.35mm); 2.2m; adapters included
• Weight: 1.2 lbs
• Warranty: 5 years after registration