LA1-UM40E-1
Bosch LA1-UM40E-1 40W Metal Column Loudspeaker, Maximum power 60W, Rated input voltage 17.89 / 70 / 100 V , Rated impedance 8/125/250 ohm, 40 / 20 / 10 / 5 W Power Tapping, 111 / 95 dB SPL at 1 W (1 kHz, 1 m), Effective frequency range (-10 dB) : 250 Hz to 16 kHz.