
A Structure That Lets Sound Breathe
The KD-P1 stands as a pivotal bridge between design and manufacturing within KuraDa’s early product lineup.
Building upon the insights gained from earlier prototypes, it balances acoustic performance, structural precision, and visual identity in a way that marked an important milestone in our development journey.
With its fully open-back design and a housing milled entirely from A7075 super-duralumin, the KD-P1 delivers a soundstage with speaker-like expansiveness.
Its distinctive form and immersive spatial presentation continue to define it as one of KuraDa’s most iconic creations.




Radical Open Architecture
Developed in 2015 based on insights gained from the OR12 prototype, the KD-P1 was designed with production feasibility in mind.
Its housing and frame were precision-machined entirely from A7075 super-duralumin, and its iconic silhouette and expansive soundstage left a lasting impression. The bold open-back construction enabled a speaker-like spatial presentation rarely found in headphones.
The 53mm dynamic driver, custom-developed for the KD-P1, was engineered specifically to overcome the challenges of low-frequency reproduction in a fully open design.
Its exceptional performance led to its refinement and reapplication in the KD-Q1 as the URD (Ultra-Responsive Diaphragm) driver.
The KD-P1 embodies KuraDa’s early engineering values and craftsmanship, and with its daring acoustic architecture and distinctive presence, it remains one of the brand’s most iconic creations to this day.




Specifications
Model (型番) | KD-P1 |
Driver (ドライバーユニット) | 53mm URD Driver |
Voice Coil(ボイスコイル) | OFC |
Impedance(インピーダンス) | 75Ω(1kHz) |
Sensitivity(感度) | 80dB / mW(1kHz) |
Frequency Response(周波数特性) | 20 - 20,000 kHz |
Weight(重量) | 487 g |
Cable(ケーブル) | 3m 8-core OFC cable |
Plug(入力プラグ) | 6.3mm Stereo |