690-3693, Visaton, Visaton 52.5mm dia 5W nom Full Range Speaker Driver, 8Ω, 120 Hz → 20 kHz, Brand Visaton, Speaker Part Speaker Driver, Impedance 8Ω, Nominal Rated Power 5W Visaton 52.5mm dia 5W nom Full Range Speaker Driver, 8Ω, 120 Hz → 20 kHz