Aurex SS-220W

Commentary

This is a bookshelf type speaker system with high efficiency.

A 20 cm cone woofer with a concave diaphragm is mounted in the low range.
The diaphragm is of the concave type with a concave center cap. The center cap itself is used as part of the diaphragm to minimize the swell near the crossover and to reduce the extreme resonance peak. It has good characteristics. In addition, the diaphragm is made of light-weight unbleached cone with a light rise.
A unique radial edge is adopted for the edge, and by adopting an Ω shape with two types of curves with different radius of curvature, split vibration at the edge is suppressed.

A free edge type 5 cm cone type tweeter is installed in the high range.

The enclosure uses a pressure balance system.
The pressure balance system is close to hermetic, and is designed to balance the internal pressure by allowing only unwanted vibrations outside the audible band to escape from the baffle port, thereby reducing the hermetic enclosure and the bus-ref-type boumey.

Model Rating

Method	2-way, 2-speaker pressure balance system ・ Bookshelf type
Speaker used	For low band : 20 cm cone type For high-pass : 5 cm cone type
Frequency characteristic	35 Hz to 20 kHz
Lowest resonance frequency	78Hz
Max Input	40W
Rated input	20W
Impedance	8 Ω
Output sound pressure level	93dB/W/m
Crossover frequency	4kHz
Internal volume	36L
External dimensions	Width 300x Height 595x Depth 290 mm
Weight	11.5kg