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H-54HD
Commentary

This horn-type tweeter unit is mass-produced without deteriorating the characteristics of the H-70HD.

By taking into consideration the clamp of the diaphragm and suppressing the non-linear movement of the vibration system, the distortion is reduced.

To improve the heat resistance of the voice coil, we use carefully selected heat-resistant materials.
In addition, a special lightweight wire is used for the voice coil to lighten the vibration system.

The diffusion effect is improved by adopting an acoustic lens with a special shape.
This acoustic lens is designed with an entrance to exit ratio of 10 : 7 and a thickness of 15 mm.

Die-cast is used for the horn part.

Model Rating
Format Horn type tweeter
Aperture diameter 5.42cm
Baffle hole 5.8cm
Voice Coil Diameter 1.4cm
Rated input 8W (with designated network)
Output sound pressure level 101dB/W/m
Voice coil impedance 8 Ω
Playback frequency band 2 kHz to 20 kHz
Cutoff frequency 2kHz
Crossover frequency 4 kHz or more
Total flux 33,000maxwell
Magnetic flux density 11,500gauss
Depth 8.45cm
Weight 0.57kg
Attachment Acoustic lens