DAYTON AUDIO ND25FA-4 Speaker Driver Dome Tweeter Neodymium 20W 4 Ohm 90dB 2500Hz - 20kHz Ø2.5cm

-TWEETER 25MM DAYTON AUDIO NDFA-4-
 Tweeter dome Neodynium Magnet 4Ω ⌀ 25mm

This soft dome tweeter offers an excellent level of detail and respectable power thanks to its heat sink in a compact format. The small front plate and the small neodymium magnet motor allow the design without front edge for example for better off-axis impulse response, with an exceptionally flat frequency response that is easy to filter from 3000 Hz.


Its affordable price also allows the design of 6-channel speakers in MTM from Appolito or acoustic line. This tweeter is equipped with a copper coating on its polar part lowering the eddy currents (reduction of distortion and inductance). The 25mm copper coil has a Ferrofluid treatment increasing the permissible power.

Technicals caracteristics

Specifications
Loudspeakers Type	Tweeter
Voice coil	25mm (1")
Material	Inpregnated Soft dome
Magnet material	Neodynium
Voice coil material	Copper
Total diameter	66mm
Overall depth	36mm
Power	RMS : 20W MAX : 40W
Impedance	6Ω
Sensitivity	90dB @ 1W/1m
Response Frequency	2500Hz - 25kHz
DC resistance	3.2Ω
Inductance voice coil (Le)	0.03mH
Resonnance frequency (Fs)	1350Hz
Mechanical Q (Qms)	3.87
Electrical Q (Qes)	2.61
Total Q (Qts)	1.56