Audio Database

SF-1
Commentary

A non-directional speaker system designed and developed to convey the rich, enveloped sound spread characteristic of live sound fields such as concert halls.

A paradrive system with two 16.5 cm cone-shaped units is used for the low range.
Substantial corn Since the paper area is greatly increased, it is possible to reproduce the deep bass sound.

A 5.8 cm cone unit is used for the high-frequency band, which is designed taking into consideration the sound connection and tone quality with the low-frequency band.
It is covered with a large airtight cover to avoid rear interference with the woofer.

Reflectors are attached above and below the part where the unit is attached, and sound waves are radiated uniformly in all directions.

The network uses a direct coupling woofer with a mechanical filter and a 6dB/oct-low-cut network with a gentle curve, providing a natural and smooth connection.
The high-frequency attenuator uses a volume type that can be precisely adjusted.

The enclosure uses curved beams made of natural cypress wood on four surfaces, and a newly developed acoustic diffuser is placed inside the enclosure to ensure even more precise sound diffusion.

Model Rating
Method 2-Way, 3-Speaker, Bass Reflex System, Floor Type
Unit For low band : 16.5 cm cone x2
For high pass : 5.8 cm cone type
Frequency band 55 Hz to 20000 Hz
Maximum allowable input 45W
Impedance 8 Ω
Output sound pressure level 90dB/W/m
Crossover frequency 2000Hz(6dB/oct)
External dimensions Width 370x Height 563x Depth 370 mm
Weight 12.0kg