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Balanced/unbalanced signal panel can supports balanced and unbalanced signal on two-way conversion.






BK-603 is a two-wire/four-wire IFB box. It only supports jack earphone. BK-603 also can run with four AA size battery.





Specification HD-102 Headphone


Sensitivity ≥94dB at 1KHz,1mW

Frequency Response 100to6000Hz

Impedance 200ohm


Sensitivity -57±3dB

Frequency Response 50Hz-6000Hz

Impedance 200ohm ± 10%

Cable length 2-2.4m                                                 

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