National EAS-45D100

Commentary

Wide range driver unit with linear phase equalizer.

Using precision machining technology, the linear phase equalizer is constructed so that each of the five slits draws a calculated curved section, thereby equalizing the length of the sound path from the diaphragm to the horn throat and eliminating phase disturbances.
Moreover, by making the aperture ratio of the slit linear, we have achieved broadband and flat frequency characteristics.

Linear rolling edge is adopted.

Model Rating

Type	Driver unit
Impedance	8 Ω
Frequency characteristic	500 Hz ~ 20 kHz (When Using EAS-75H100)
Recommended crossover frequency	700 Hz or more
Output sound pressure level	106dB/W/m (with EAS-75H100)
Input (Max)	150W (when using EAN-20N100)
Throat diameter	Φ 25.4 mm
Magnetic flux density	18,800gauss
Total flux	164,000maxwell
Weight	3.7kg