Audio Database


This is a speaker system that pursues High Legh near-sound by polishing the sound through repeated listening tests while adopting a strict symmetrical unit arrangement.

A 30 cm cone type woofer is installed in the low range.
Coral original micro crystal cone paper is adopted as the diaphragm. This uses cone paper manufactured in a special way, and has a structure in which hollow crystal particles with a specific gravity of 0.3 and a diameter of 0.1 mm are coated on the surface. This improves the split vibration and enhances the transient characteristics of low and middle / low frequency ranges.
In addition, linear free edges and die-cast frames improve low-frequency playback.

The middle area is equipped with a 5 cm hard dome type squaker.
The diaphragm is made of high-hardness titanium molded into a dome shape using a unique molding method. The CCAW voice coil maintains mass balance, expands the high-frequency range, and improves transient characteristics.
In addition, input resistance is improved by adopting aluminum for the bobbin.

A 2 cm hard dome type tweeter is installed in the high range.
The diaphragm uses 18 micron thick super duralumin hard dome type diaphragm in pursuit of elimination of distortion, improvement of transient characteristics, and possibility of high frequency reproduction limit.

There are two level controls on the front, one for mid-range and the other for wide-range.

For the network, a coil using a ferrite core with high permeability which does not generate non-linear strain even under Dainyu force and a Meiler capacitor are adopted.

The enclosure is a bass-lef-type enclosure made of high-density multi-layer particleboards with reinforced side, baffle and back plates. Three types of sound-absorbing materials are used : ester wool, Tetoron wool and soft felt.
Finished with UVD coating.

Model Rating
Method 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type
Units Used For low band : 30 cm cone type
For Middle Area : 5 cm Dome Type
For High Pass : 2 cm Dome Type
Playback frequency band 30 Hz to 40 kHz
Impedance 8 Ω
Program source input 80W
Crossover frequency 700 Hz, 7 kHz
Output sound pressure level 94dB
External dimensions Width 390x Height 650x Depth 320 mm
Weight 22kg