Audio Database

Picture of DS 300
Commentary

History series bookshelf type speaker system using liquid crystal polymer diaphragm.

A new material, L. C. P. (Liquid Crystal Polymer), is used for both low-frequency and high-frequency vibration plates, making it a 2-way constant velocity.
L. C. P. has a self-reinforcing effect in which when a certain stimulus is given, the polymers orient together and increase rigidity. It also has inelasticity comparable to metals. In addition, since it is a high polymer material, it also has a large internal loss close to ideal.
In order to use this excellent material as a diaphragm, Diatone uses an injection molding method in which polymer is injected at high speed for molding. Rigidity is increased due to uniform orientation of polymer, and specific elastic modulus is also improved due to ultra-thin molding.

A 16 cm cone type woofer is installed in the low range.

A 5 cm cone type tweeter is installed in the high range.
In the Tweeter, a sub-frame with a traditional orifice (slit type) is installed in the chamber on the back of the diaphragm to suppress resonance.

The magnetic shielding design prevents magnetic flux leakage by attaching a repulse magnet to the magnetic circuit of each unit.

A oxygen-free copper is used for the coil of the network section, and a crimping wiring method that does not require any solder is used for connection.

The enclosure is sealed and the 4-side round baffle, which rounds all four sides of the front baffle, reduces unwanted radiation due to the diffraction effect of sound.

There are 2 color variations of oak and dark oak.

There was a speaker stand for the History Series separately sold. This stand is designed to expand the sound field naturally and is also equipped with an adjuster to keep the best setting with the floor.
Also, the DK 300 was sold as a speaker stand exclusively for the DS 300 in the latter period.

Model Rating
Method 2-Way, 2-Speaker, Sealed System, Bookshelf Type, Anti-magnetic Design (EIAJ)
Units Used For low band : 16 cm cone type
For high-pass : 5 cm cone type
Nominal impedance 6 Ω
Playback frequency band 45 Hz to 30 kHz
Output sound pressure level 87dB/W/m
Max Input 180W(EIAJ)
Crossover frequency 1.5kHz
External dimensions Width 230x Height 386x Depth 242 mm
Weight 8.0kg
Sold separately : Speaker Stand DK 500 (2 pcs 1 set, ¥ 30,000)
Maximum external dimensions Width 300 (230) x Height 460x Depth 290 (213) mm
Weight 4.5kg
Sold separately : Speaker Stand DK 300 (2 pcs 1 set, ¥ 20,000)
Maximum external dimensions Width 300 (230) x Height 505x Depth 290 (213) mm
Weight 5.0kg