Audio Database

The

Lo-D HS-7
35,000yen(one set, the 1980 release)

Description
 
3 way bookshelf type speaker system which inherits the fluence of HS-3.

The 25cm cone type Woofer is carried in low-pass.
The gathered edge which is a Lo-D original technology is allotted to the edge, and the low-pass play is improved with combination with the magnetic circuit of magnet adoption of 110phi-60phi-15t.
Furthermore, the roadeo actuator (low-distortion magnetic circuit) is also carried.

The 5cm cone type tweeter is carried in the high region.
The 80phi-40phi-15t magnet was adopted as the magnetic circuit, and the input-proof is improved in the voice coil bobbin by using a thermosetting self-fusion line together using the polyimide system thermal-resistance fiber of an exotic material.
Adopting the roll edge of another component partses as an edge with a diaphragm, the quality micra glass wool and interval inserted in a magnetic circuit enable low fo-ization.
Moreover, the titanium diaphragm was adopted as the center cap and the high region is improved.

The 1.4cm dome shape super tweeter is carried in the super-high region.
Titanium is used for a diaphragm and the directivity is improved by using a small caliber.
Moreover, the 45phi-22phi-8t thing is used for a magnet.

an enclosure does not have an edge in a front baffle board -- hurrah, it is the bass-reflex scheme which adopted the ムレス baffle structure. Moreover, the improvement in a tone quality, such as using two kinds of acoustic material, glass wool and a natural fiber, for the interior, is aimed at.
a sheath -- merci, rose tone finish is given.


Rating of a mode
Scheme 3 ways, 3 loudspeaker bass-reflex scheme, and a bookshelf type
Unit For low-pass: 25cm cone type
For high regions: 5cm cone type
For high [ super-] regions: 1.4cm dome shape
Frequency characteristic 40Hz - 30000Hz (-15dB anechoic chamber)
The maximum input 100W (music signal peek)
Impedance 6ohms
Output sound pressure level 92 dB/W/m (8-ohm conversion)
Cross over frequency 1.5kHz, 17kHz
Enclosure internal volume 34L
Dimensions Width 292x height 530x depth of 315mm
Weight 12kg