Audio Database

Commentary

This is a floor-type speaker system in the first lineup of the Diatone series.

For the low range, it is equipped with a 20 cm cone type woofer PW 2015 and a 30 cm cone type woofer PW 3012.
This increases efficiency and reduces distortion in the mid-pitch valley and near the upper limit frequency, which are common in cone-type speakers.

For 5 cm cone type tweeters, TW-23, are mounted for the high range.

The overall design, including the cabinet, simplifies the network.
The high range of the woofer is designed to attenuate at -12dB/oct. from the crossover frequency without a network.

The enclosure is hermetically sealed and has a Eurasian cheek finish on the exterior.

Model Rating
Method 2-Way, 4-Speaker, Sealed Type, Floor Type
Units used, etc. For Low Band : 30 cm Cone Type (PW-3012)
20 cm Cone Type (PW-2015)
For High Range : 5 cm Cone Type (TW-23) x2
Network : 6 μ F NP capacitor
Nominal impedance 8 Ω
Playback frequency band 30 Hz to 20 kHz
Output sound pressure level 104dB/VA(50cm)
Crossover frequency 2kHz
Max Input 40W
External dimensions Width 580x Height 860x Depth 310 mm
Weight 30kg
Specifications of the unit used
Model Name PW-3012 PW-2015 TW-23
Aperture 30cm 20cM 5cm
Nominal impedance 16 Ω 16 Ω 13 Ω
Playback frequency range 40 Hz to 2 kHz 40 Hz to 2 kHz 2 kHz to 20 kHz
Output sound pressure level 101dB/VA 101dB/VA 98dB/VA
Lowest resonance frequency 40Hz 40Hz 2kHz
Effective air gap flux density 9,000gauss 9,000gauss 10,000gauss
Total flux 150,000maxwell 150,000maxwell 38,000maxwell
Permanent magnet MK-5-DG MK-5-DG MK-5S-DG