LB1-BW12-L1
Bosch LB1-BW12-L1 12W Bi-directional Cabinet Speaker, White, 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 (-6 dB) : 270° / 165°, 100V Rated Input Voltage.