Audio Database

The

Lo-D H-54HD 3,500yen(one-set, around the 1973 time)
4,500yen(one-set, around the 1974 time)

Description
 
The horn type tweeter equipped with a special lens.

The equalizer of the special design was adopted, the high region was lengthened, and the flat property has been acquired in the large band.
Moreover, in order to improve a directivity, the "Ha" form acoustic lens is carried.

The non-linear motion of vibration system is suppressed with careful attention to the clamp of a diaphragm.

The special lightweight line is adopted as a voice coil.


Rating of a mode
Synopsis Horn type tweeter
The diameter of an aperture 5.42cm
Baffle hole 5.8cm
The diameter of a voice coil 1.4cm
Rated input 8W (with the appointed network)
Output sound pressure level 101dB/W/m
Voice coil impedance 8ohms
Play frequency band 2kHz - 20kHz
Cut-off frequency 2kHz
Cross over frequency 4kHz or more
The total magnetic flux 33,000maxwell
Flux density 11,500gauss
Depth 8.3cm
Weight 0.57kg