iFi audio ZEN CAN Signature 6XX 4.4mm Balanced InputOutput HeadphonesPreamplifier []

Equipped with ActiveEQ for [Massdrop × Sennheiser HD 6XX], it creates a special EQ curve and performs it in the analog domain without any perceptible noise or distortion The benefits of this ActiveEQ curve can also be applied to Sennheiser's HD650 headphones and other models Four gain settings available: 0dB, 6dB, 12dB, 18dB Pro Equipped with elements taken from circuits developed for iCAN High output that produces 1600mW (7.2V) into 32Ω with 3.5mm output and 15V into over 300Ω with 4.4mm output Comes with iPower II 5V equipped with iFi's proprietary noise canceling technology ANC II