Audio Database


180,000yen(one-set, around the 1988 time)

The speaker system with which Alan Shaw improved the monitor HL which was developed by Dudley Harewood and improved to Mark IV.

The 20cm corn type Woofer which adopted the TPX corn is adopted as low-pass.
The new materials of U.S. E. I. du Pont de Nemours & Co. are adopted as edge.

The aluminum hard dome shape tweeter of a 2.5cm caliber is adopted as a high region.

A substantial internal reinforcement design and reexamination of the sound-absorbing material are carried out, and after enclosure prevents acoustic diffraction by a front and improvement in baffle board thickness of rear, it is considered as the same native wood decorative sheet finish as a side board.

Rating of a mode
System 2 way, 2 speaker bass-reflex system, and book-shelf type
Use unit For low-pass: 20cm corn type
For high regions: 2.5cm dome shape
Play frequency band 50Hz-20000Hz±3dB
Crossover frequency 2000Hz
Output sound pressure level 86dB/W/m
Impedance 8ohms
The maximum input 100W
Dimensions Width 325x height 640x depth of 310mm
Weight 17kg
Option Speaker stand (one set, 19,000yen)