Audio Database

The speaker system which aimed at the quality improvement of the whole band further centering on the expressiveness of a mid range.

The 22cm cone type Woofer is carried in the low region.
R.I. hybrid cone is adopted as a diaphragm. It has a structure in which olefin resin is mixed with high-rigidity carbon fiber and aramid fiber with excellent internal loss, and is radially injection-molded. As a result, high rigidity and internal loss are combined at a high level to improve the rising and falling characteristics. Moreover, in order to extend a reproduction limit to a high region, the curved shape is adopted.

The 3cm dome shape tweeter is carried in the high region.
The diaphragm is equipped with boron for the first time in its class, which has high specific elastic modulus, high durability, and weather resistance, and is also excellent in suppressing eigen sound. Furthermore, in order to maximize the characteristics of this diaphragm, the DUD method, which is a unit structure unique to Diatone, is adopted, and the driving force generated by integrating the diaphragm and the voice coil is directly applied to the diaphragm. I am telling you.
The DS-55XL has a wider caliber than conventional Boron tweeters in order to enhance midrange playback capabilities, and has realized a 3 cm dome tweeter by adopting a tangential edge with a special three-layer structure and optimal design of frame width. I will.
Hybrid D.M. is adopted as a frame structure, and the magnetic circuit is directly mounted in the enclosure by simplifying the conventional frame structure. Furthermore, by covering the entire plate with a resin molded product, in addition to high rigidity, appropriate vibration damping properties have been obtained.

The magnet shield system which mounts the magnetic-shield magnet in the magnetic circuit is adopted.

The back bass reflex system is adopted as an enclosure.
Moreover, the standing wave generated inside is controlled by setting the woofer at the optimum position in addition to the sound absorbing material. At the same time, the resonance of the enclosure is reduced by making it a strong distributed resonance type enclosure.

There are two types of exterior finishes: walnut finish and peer oak finish.

There is a speaker stand and an acoustic base sold separately, and a wide range of installation is possible.

Model rating
type 2 way, 2 speaker, bass reflex system, bookshelf type, magnetic-shield design (EIAJ)
Unit used For low frequencies: 22 cm cone type
For high regions: 3cm dome shape
Playback frequency band 42Hz-35kHz
Nominal impedance
Output sound pressure level 90dB/W/m
Maximum input 150W(EIAJ)
Crossover frequency 1.5kHz
Outer dimensions Width 260x height 545x depth of 248mm
weight 11kg
Included OFC speaker cable
Sold separately Acoustic Base DK-555 (1 set of 8, ¥6,000)
Sold separately: Speaker stand DK-55WN/OK (1 set of 2 units, ¥18,000)
Outer dimensions Width 270x height 300x depth of 290mm
weight 4.0kg