Audio Database

Image of S-55twinX
Commentary

A compact vertical twin speaker system that can be placed on a shelf and offers a sound field scale comparable to that of a floor-type speaker.

It employs a vertical twin system with wave surface control technology, and four improvements have been made : adjusting the energy time response of the woofer and the tweeter on the time axis, controlling the directivity of the woofer and the tweeter, matching the electrical phase of the network, and controlling the wave surface diffraction by the baffle shape.

In the low frequency range, an oven cone made of paper made by mixing aramid fiber with pulp is used, and resolution in the low frequency range is improved by increasing sound speed and obtaining an appropriate internal loss.
In addition, an Alnico magnet is used for the magnetic circuit, and a copper short ring and OFC voice coil are combined to reduce distortion.

A 2.5 cm dome type tweeter with a W. F. (wave front) director incorporating wave-front control technology is adopted for the high frequency range.
The W. F. director controls the energy time with the woofer on the time axis, and the horn shape controls the directivity.
The diaphragm uses newly developed new ceramic carbon, a composite material of ceramic carbon and ceramic graphite that realizes higher sound velocity and higher internal loss.
Alnico magnet is used for the magnetic circuit.

Each unit is equipped with a full midship mount unnecessary vibration of the baffle, and the baffle and unit are shielded by a shield frame.
As a result, the entire system is completely free from vibration and resonance.

The baffle is 30 mm thick and uses an elliptic curve round baffle to suppress the diffraction phenomenon of sound.
In addition, electrostatic flocking is applied to the surface to absorb fine fibers with static electricity. Moreover, since the flocking is applied to the baffle mounting hole, unnecessary vibration and reflection of the baffle are suppressed.
The enclosure has a floral finish in a subdued Red-Dish dark brown color.

The speaker terminal uses a gold plated terminal that can be connected by bi-wiring so that the low-frequency and high-frequency circuits can be fed separately.
Also comes with a gold-plated short bar.

Model Rating
Method 2-way, 3-speaker, bass reflex system, bookshelf type, magnetic protection design
Units Used For low band : 14 cm cone x2
For high band : 2.5 cm dome type + W. F. director
Impedance 6 Ω
Playback frequency band 45 Hz ~ 40000 Hz
Output sound pressure level 91dB/W/m
Max Input 150W(EIAJ)
Crossover frequency 2600Hz
External dimensions Width 236x Height 460x Depth 310 mm
Weight 13.0kg