Entry level speaker, suitable for the places which have no high tone request, such like school auditorium or outdoor play ground

[Nominal Impedance]:  8Rated Power]:        500[Recommended Amp.]:   500-1000[Frequency Response]: 50-18kSensitivity]:          99[Maximum SPL]:      132[Dispersion]:           H90xV70WHD)[Dimension]:        471*690*443(kg)[Weight]:

Entry level speaker, suitable for the places which have no high tone request, such like school auditorium or outdoor play groundTwo outlooks optional

15" Full frequency speaker