Audio Database

DS-A7
Commentary

This is a speaker system designed following the basic design of the DS-A3 model as the third item of the 50th anniversary of Diatone Kobo.

A 16 cm cone type woofer is installed in the low range.
New Aramid Hybrid FRP is used for the diaphragm. This diaphragm is made of organic fiber aramid with high rigidity and moderate internal loss, and amorphous silica with high rigidity of approximately 15% compared to the conventional one with an intra-ply structure. The strength and flexibility of the material enable high-quality bass reproduction.

A 4-cm cone type tweeter using an aramid cone is installed in the high range.

The network section inherits the design philosophy of the DS-A3. It is tuned to optimize the energy balance of each unit and crimp wiring is adopted to minimize transmission loss.
In addition, parts with high transparency such as laminated oriented core low strain coil are used.

The enclosure uses a bass reflex system.
The bass reflex opening is designed as a large oval port, and the inside is designed as a bent angle port. The bass reflex is tuned to 40 hz so that it can be played back up to 42 hz, the lowest sound level of the double bass.
The baffle plate is 42 mm thick, just like a large speaker, to suppress unwanted resonance, and the 2-side round baffle enclosure with a large roundness reduces sound quality degradation caused by the diffraction phenomenon of sound waves.

The input terminal uses a gold-plated terminal that is compatible with banana plugs.

There was a special speaker stand sold separately.
This stand is designed to be the right height when you sit on a low sofa.

Model Rating
Method 2-Way, 2-Speaker, Basref System, Bookshelf Type, Anti-Magnetic Type (EIAJ)
Units Used For low band : 16 cm cone type
For high pass : 4 cm cone type
Rated impedance 6.3 Ω
Playback frequency band 39 Hz to 40 kHz
Output sound pressure level 85dB/W/m
Crossover frequency 1.5kHz
Max Input 150W(EIAJ)
External dimensions Width 256x Height 410x Depth 277 mm
With Net Depth : 300 mm
Weight 11kg
Attachment Net grill
OFC cable (4mx2 pieces)
Sold separately : Speaker Stand DK-A7 (2 sets, ¥ 32,000)
External dimensions Width 285x Height 490x Depth 320 mm
Weight 5.2kg