Mass Kobo Model 394 II Headphone Amplifier


By Order only. Depending on parts availability, Mass-Kobo builds to order and delivers between 6-8 weeks' time. A solid block that powers almost everything, including known to be hard to drive flagship headphones. 


Model : Full Balanced Stereo headphone amp
Input : Electronically Balanced = XLR3-31 , Unbalance = RCA
Output : Balance = XLR4-31 x 1 or XLR3-31 x 2(L,R) , Unbalance = φ6.3 TRS x 2(High or Low)
Input Impedance : 3.7kΩ (XLR)/ 12kΩ (RCA)
Reference Input Level : +4dBm (XLR)/ -10dBm (RCA)
Maximum Input Level : +25dBm (XLR)/ +10dBm (RCA)
Maximum Output Level
(P-P) : Balance = Hi 24V, Low 18V (with 32Ω loaded, 1kHz, THD+N 0.05%)Unbalance = Hi 12V, Low 9V (with 32Ω loaded, 1kHz, THD+N 0.05%)
(RMS): Balance = Hi 8.5V, Low 6V (with 32Ω loaded, 1kHz, THD+N 0.05%) Unbalance = Hi 4.2V, Low 3V (with 32Ω loaded, 1kHz, THD+N 0.05%)
Maximum Output without Distortion : Balance = 2.2W , Unbalance = 600mW (with 32 ohm load, 1kHz, THD+N 0.05%)
Frequency Characteristics : 13Hz - 100kHz (-0.5dB)
Power Supply : AC100 - 240V, 50/60Hz
Electric Energy Consumption : 0.5A (with AC100V)
Size :
285mmW x 230mmD x 50mmH (except the rubber feet and projections)
285mmW x 230mmD x 52mmH (including the rubber feet and projections)
Weight : 2.9kg (without the power cable)

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