Audio Database

The

DIATONE DS-25BmkII
29,000yen(one set, the 1979 release)

Description
 
The die-casting frame of spin finishing with sufficient wall thickness and a strong structure is adopted as a Woofer. Resolution is raised by removing the natural frequency of the frame itself. Moreover, a voice coil is equipped with the dumpling made of the special synthetic rubber, a mechanical filter is worked, and the characteristic near crossover frequency is improved. It has compass, while [ with high density ] having been substantial.

The sub-frame of orifice structure was attached in the chamber of a tweeter, the vibration was pressed down, and sound quality with sufficient resolution is realized. Moreover, the good loud sound of the omission has been obtained with the center cap of a titanium dome, and the high rigidity frame.

Few coils containing a core and the metallized polyester film capacitor of low distortion of the transmission loss were adopted as the network, and little distorted play is realized over all the play zones.

In order to suppress the resonance which tends to be generated at the time of a low-pitched sound region play, the enclosure has adopted the distributed vibration type which distributes vibration mode. The low-pitched sound region of the bass-reflex system is supported firmly.


Rating of a mode
System A 2 way 2 speaker bass-reflex system and a book shelf type
Use unit For low-pitched sound: 25cm corn type
For loud sounds: 5cm corn type
Nominal impedance 6ohms
Play frequency band 45Hz - 20000Hz
Crossover frequency 1500Hz
Output sound pressure level 90dB/W/m
The maximum input 60W
Level control Loud sound: Four positions (1500Hz - 20000Hz)
Dimensions Width 320x height 570x depth of 294mm
Weight 13.5kg