JBL Sound Power Series SP215-9 - Manual (Page 2)

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SP215-9 2 way System
Frequency Response is measured on-axis at a distance
referenced to 1 m @ 1 watt (2.83 Vrms) input, shown as
a half-space (2
␲) environment.
Horizontal Off Axis Frequency Response
Beamwidth vs. Frequency Vertical Off Axis Frequency Response (up)
Directivity vs. Frequency Vertical Off Axis Frequency Response (down)