Audio Database

VS-900F Image

A toll-boy type speaker system that pursued the voicing theory.

In the VS-900F, the standing wave inside the cabinet which dulls the sound afterglow is removed by the arrangement of the unit.
Conventional speakers use sound absorbing materials to suppress standing waves, but this method also loses a lot of acoustic energy. Therefore, the VS-900F is designed based on the positional relationship of units obtained by analysis techniques such as the finite element method. By preventing standing waves without using sound absorbing materials, it eliminates only the adverse effects of standing waves without damaging the afterglow of natural sounds.

Two 18 cm cone woofers and two 16 cm cone woofers are installed in the lower range.
The diaphragm of these units is made of LCP (Liquid Crystal Polymer), a material with high specific elasticity and large internal loss due to high-speed injection molding using self-reinforcing effect, and has acquired excellent characteristics as a diaphragm.
In addition, ADMC (Advanced Magnet Circuit) is adopted for the magnetic circuit, and magnetic distortion is eliminated by canceling the AC magnetic field with attention paid to flux fluctuation in the magnetic circuit.

A 3-cm dome type tweeter is installed in the high range.
This unit also uses an LCP diaphragm to enhance the connection of sound with the low frequency range, and a DUD structure that integrates the diaphragm and voice coil bobbin realizes high speed.

The enclosure is made of rear R-plywood to reduce internal standing waves.
In addition, the unit layout is inline so that when combined with a large-screen TV, the sound is centered on the screen.

Model Rating
Method 2-Way, 5-Speaker, Bass Reflex System, Tall Boy Type
Magnetic Protection Type (EIAJ)
Units Used For low band : 18 cm cone x2
2 x 16 cm cone
For High Pass : 3 cm Dome Type
Rated impedance 6 Ω
Playback frequency band 35 Hz to 25 kHz
Output sound pressure level 91dB/W/m
Crossover frequency 2kHz
Max Input 180W(EIAJ)
External dimensions Width 320x Height 1,432x Depth 410 mm
Weight 35kg
Attachment OFC speaker cable