Specifications:
Bock Audio 407 Cardioid Large-diaphragm Tube Condenser Mic Features:
Fixed cardioid polar patterns
Frequency Range: 10Hz-18kHz, +/-2dB
Sensitivity: 26mv/Pa
Equivalent Noise: 18dB (“A” weighted) 32dB (unweighted)
Distortion vs.SPL @1kHz:
112dB = 0.5% THD
118dB = 1% THD
129dB = 2% THD
Impedance: 200 ohms true transformer-balanced
Recommended load: 2k ohms
Dynamic range (maxSPL-“A”noise): 94dB
S/N (94dB-noise): 76dB “A”, 62dB unweighted
Capsule: 1″ diameter, single-backplate K47 type
Tube type: NOS EF814k
N470 true-linear remote power supply included