LB1-BW12-D1
Bosch LB1-BW12-D1 12W Bi-directional Cabinet Speaker, Black, 97 / 86 dB Sound Pressure Level, Rated Impedance: 833 ohm, 140 Hz to 20 kHz Effective frequency range (-10 dB), Opening angle at 1 kHz 4 kHz (-6dB) :270° / 165°, 100V Rated input voltage.