Audio Database

The

Lo-D HS-90F
160,000yen(one set, the 1980 release)

Description
 
The speaker system which collected the configuration object of the foaming resin filling planar loudspeaker unit to the bookshelf system centering on the design way of the high fidelity play established by HS-10000.

The foaming resin filling planar loudspeaker unit is adopted as Woofers, mid ranges, and all the tweeters.
since an elastic-wave radiation side is a planar, it is based on the hollow effect which it had the flat frequency characteristic, was low-skew, and was not avoided in a cone form -- it was filled and sound is banished.
Moreover, since [ which filled up the rigid high metal cone with the resin ] a structure, there is little distortion at the time of the Dainyuu power, and the extensive dynamic-range property has been secured.

L-3005F which is a 30cm planar Woofer is carried in low-pass.
It has a structure which filled up the rigid high metal cone with the foaming resin, and the bass play is improved with the combination of a large swing, high compliance and a gathered edge with high self-resonant frequency, and a gathered spider.
Furthermore, a large-sized magnet with a Lo-D actuator (low-distortion magnetic circuit) and a diameter of 140mm is carried, and flat-ization of the low distortion and the impedance characteristic is attained.

M-5001F which is a 5cm planar mid range is carried in the mid range.
As a mid range, foaming resin filling was performed to the diaphragm of the 5cm dome shape of a small caliber, and an expansion and extensive dispersibility of a waveguide-plunger oscillating area are realized.
A gathered edge and the gathered Spider are adopted like a Woofer, fo is lowered, and the relation with a Woofer is made smooth.

H-2001F which is a 2cm planar tweeter is carried in the high region.
The way of filling up a dome shape diaphragm with a foaming resin like a mid range is adopted.

The three-layer structure particle board of 30mm of board thicknesses by the needle-leaf tree which used the Calah pine as the main material is adopted as a baffle board and a back board.
Moreover, the appearance serves as finish which harnessed grain.


Rating of a mode
Scheme 3 ways, 3 loudspeaker bass-reflex scheme, and a bookshelf type
Unit etc. For low-pass: 30cm planar type (L-3005F)
For mid ranges: 5cm planar type (M-5001F)
For high regions: 2cm planar type (H-2001F)
Frequency characteristic 30Hz - 20000Hz
The maximum input 140W (music signal peek)
Impedance 8ohms
Output sound pressure level 89dB/W/m
Cross over frequency 710Hz, 3150Hz
Enclosure internal volume 85L
Dimensions Width 450x height 745x depth of 405mm
Weight 45kg