TL7 O Frequency Response

Frequency response above (click to enlarge). Responses were taken at 1 meter shown crossover point at 1650hz
Impedance below (click to enlarge) easy 4 ohm load

TL7 O impedance a small dip in the upper range which is still no issue for most 4 ohm amps (below is shown with a optional impedance correction network)

Off axis horizontal measurements are yellow (on axis) and light blue,dark blue,orange 15,30, and 45 degrees off axis.Scale readings is in 5db increments

Unsmoothed spectral decay (below)