Sennheiser HD-400 Pro

Studio headphones Open Circumaural Impedance: 120 Ohm Sound pressure level: 110 dB SPL (1 kHz / 1 V RMS) Frequency range: 6 - 38.000 Hz Total harmonic

Sennheiser HD 400 Pro Studio Reference Open Back Dynamic Headphones Bundle with Desktop Headphone Stand and Headphones Case

Sennheiser HD 400 Pro Open-back Studio Headphones ( HD400 / HD-400 )

Sennheiser HD 400 Pro released, Page 4

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Sennheiser HD 400 Pro Goes Official: Open Back Professional Grade Earphone For All? - Gizbot News

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