KENWOOD LS-M7

Commentary

This is a speaker system that largely adopts the design concept of a full-range speaker in the orthodox bookshelf type.

A 27 cm cone type unit is adopted for the low range in consideration of cabinet size, lower limit reproduction frequency and efficiency.
The Cloth-dyneema diaphragm is composed of Dyneema and carbon fibers, both of which have excellent characteristics among organic fibers, arranged in a longitudinal and a transverse sequence.
We have also adopted a long voice coil and an aluminum die-cast frame to further improve the quality.

A 9 cm semi-dome type unit is used for the middle area.
The diaphragm is composed of a Cloth-dyneema diaphragm and a plasma diamond diaphragm made by forming diamond on titanium with plasma energy. On top of this diaphragm, a semi-dome structure with reduced weight is adopted.
In addition, the Direct Super Dome (DSD) structure with low transmission loss by integrating the dome and voice coil has been adopted to improve efficiency and high-frequency reproduction limit. Furthermore, the reflection, interference and diffraction of sound waves from the diaphragm have been reduced by the adoption of aluminum die-cast spherical wave horn baffle.

A 2.5 cm dome type unit with a plasma diamond diaphragm is used for the high-frequency range. This unit uses an aluminum die-cast spherical wave horn baffle to achieve natural expansion.
In addition, the diaphragm, voice coil, and edge are integrated into a DICA (Direct Inner Class A Suspension) structure improve the loss of high sound energy.

Dedicated low, middle, and high frequency networks are distributed to minimize interference caused by vibration and sound pressure from the unit, magnetic induction, and timing induction from the reciprocal induction, coil, and capacitor.

The enclosure has a compact front projection area, a longer depth for volume, and a back-center offset bass reflex port.
The baffle plate has a thickness of 40 mm, which is made by bonding two 20 mm plates together, to improve the strength. In addition, the thickness of the side plate, top plate and bottom plate is changed to 18 mm, and the thickness of the back plate is changed to 20 mm. By changing the vibration mode, natural and straightforward expression is possible.

Model Rating

Method	3-way, 3-speaker, bass reflex system, bookshelf type, magnetic resistance design (EIAJ)
Unit	For low band : 27 cm cone type For Middle Area : 9 cm Semi-dome Type For high-pass : 2.5 cm dome type
Playback frequency band	28 Hz to 47000 Hz
Max Input	200W(EIAJ)
Impedance	6 Ω
Output sound pressure level	91dB/W/m
Crossover frequency	300 Hz, 6500 Hz
External dimensions	Width 324x Height 578x Depth 369 mm
Weight	24.0kg
Sold separately : Speaker Stand SG-M7 (1 set of 2, ¥ 35,000)
External dimensions	Width 370x Height 330x Depth 360 mm
Weight	9kg
Attachment	Pinpoint base