Astell&Kern Beyerdynamic AK T1p Semi-Open Headphones, Special Edition $549.99 fs @ adorama / $524.99 w/amex offer YMMV !

linkorama

• Transducer typeDynamicOperating principleSemi-Open
• Frequency response5 – 50000Hz
• Impedance32Ohms
• Nominal sound pressure level102dB
• Sound Coupling to the earCircumauralTHD+N0.05%
• Power handling capacity300mWMax. sound pressure level126dB
• Cable2.5mm 4-pole balanced cable / 3.5mm 3-pole standard cable / 3.5mm to 6.35mm adapter (detachable, OCC 7N copper conductors, textile braided)
• WeightWithout Cable: 360g / 12.70oz