Dayton ND25FW-4 1″ Soft Dome Neodymium Waveguide Tweeter

Dayton ND25FW-4 RAW Frequency ResponseFig 1 – Mic at 36ins, tweeter axis. Impulse Window = 5msec. No Smoothing.
Baffle Width=9″ • DCR Box=40 liters

Dayton ND25FW-4 • 3kHz HPF • 24dB/oct • Linkwitz Riley

Fig 2 – Mic at 36ins, tweeter axis. Impulse Window = 5msec. No Smoothing.

ND25FW-4 Cumulative Spectral Decay (CSD)

Fig 3 – Rise Time = 0.10 msec. Window = 1.3 msec ( 769Hz ). Time Range = 1.5 msec
3kHz HPF • 24dB/oct • Linkwitz Riley

ND25FW-4 Toneburst Energy Storage

Fig 4 – 3kHz HPF • 24dB/oct • Linkwitz Riley

ND25FW-4 Spectrogram

Fig 5 – 3kHz HPF • 24dB/oct • Linkwitz Riley

ND25FW-4 Harmonic Distortion

Fig 6 – Red plot = 2nd harmonic • Violet plot = 3rd harmonic
3kHz HPF • 24dB/oct • Linkwitz Riley

ND25FW-4 Impedance

Fig 7 – ND25FW-4 • Fs=1,327Hz