Rated impedance: 6Ω
Rated Power: 30W
Sensitivity: 96dB/W/M
Frequency range: 1700Hz-40kHz
Dimension of aluminum ribbon(WLT)：8.5mm×60mm×0.01mm
Shape of aluminum ribbon: wave
Mass of aluminum ribbon: 12mg
Moving area of aluminum ribbon: 510mm2
Gap Flux: 0.58 Tesla
Frequency cut recommended: over 2500Hz
Material of mounting faceplate: aluminum, CNC processing, surface with anodizing electroplating finish.
Dimension of mounting faceplate: φ110mm×T4mm
Outside dimension: φ110×D84
Weight: 1.05kg/pc

They are new in box. Ask $150.00 plus postage