Audio Database

LS-11ES
Commentary

Compact 3-way speaker system.

A 19 cm cone type woofer is installed in the low range.
Cloth-dyneema is used for the diaphragm, making it a composite diaphragm with light weight, high sound propagation speed, and plain woven of dyneema fiber with high internal loss and carbon fiber with high elastic modulus.

An 8 cm semi-dome type squaker is mounted in the middle area.
The dome of the diaphragm uses a sandwich composite structure in which hard ceramic layers are formed on both sides of an aluminum alloy to ensure rigidity and internal loss. Transmission loss is reduced by connecting directly to the voice coil bobbin. The cone part uses a lightweight diaphragm made of natural fiber.
In addition, we have adopted a spherical wave horn baffle that reduces reflection, interference, and diffraction of sound from the diaphragm and improves directional characteristics.

A 1.6 cm dome type tweeter is installed in the high range.
Crystal plasma diamond is used for the diaphragm to increase the high range limit by improving the rigidity.
As with the Scoker, the spherical wave horn baffle reduces sound reflection, interference, and diffraction.

Equipped with a continuously variable level control for the tweeter.

The network section uses Ritz pattern printed circuit board.
In addition, the network for each unit is arranged separately to minimize the mutual interference between each circuit.

The enclosure minimizes the area of the front baffle to improve orientation, the round baffle reduces diffraction effects of sound, and the enclosure is designed to provide sufficient depth for volume.
There is a duct in the back, and it is installed in the position which can cancel the adverse effect of standing wave inside the cabinet.

There are LS-11ES in brown color and LS-11ES (D) in dark brown color.

Model Rating
Method 3-way, 3-speaker, bass reflex system, bookshelf type, magnetic resistance design (EIAJ)
Unit For low band : 19 cm cone type
For Middle Area : 8 cm Composite Type
For high-pass : 1.6 cm dome type
Playback frequency band 45 Hz to 50 kHz
Max Input 130W(EIAJ)
Impedance 6 Ω
Output sound pressure level 89dB/W/m
Crossover frequency 1 kHz, 5 kHz
Maximum external dimensions Width 228x Height 403x Depth 275 mm
Weight 8.5kg
Sold Separately Speaker Stand SG-11 (2 pcs 1 set, ¥ 16,000)