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1. General description

The goal with our new E 7 series loudspeakers has been to bring audiophile quality

loudspeaker technology to the mass market. Furthermore our requirement from the start

has been that this new series should perform equally well with music as movies and have

the eye pleasing aesthetics that allow most people to integrate these loudspeakers in their

everyday living rooms without sacrificing their interior decor. A task that proved to require

new and ingenious solutions as well as ground breaking technology from our EISA award

winning D 7 series.

These are loudspeakers designed by engineers with a

passion for music in all its forms. Anybody who listens to

these designs will hear that. We wanted this new range to

exceed all sonic expectations in the class... we think that's

exactly what it does.

One of the biggest challenges when designing speakers is

preventing unwanted cabinet vibrations from clouding or

colouring the sound. High frequencies are particularly

susceptible so we came up with the first ingenious

solution... Decoupled Tweeter Technology (DTT).

By decoupling the tweeter from the rest of the

loudspeaker, vibrations transmitted from the front baffle to the tweeter are reduced by

more than 20 dB resulting in

an uncommonly detailed and

realistic reproduction of high

frequencies.

Firstly

the

tweeter

decoupled

from

aluminium front baffle using a

special

rubber

compound

called

EPDM

Propylene Diene Monomer)

which has extremely good

acoustical

properties.

Secondly the aluminium front

baffle is not just screwed onto

the wooden front baffle but

mounted using natural rubber

rawlplugs

which

prevents

vibrations

transmitted.

The loudspeaker cabinets themselves are constructed from solid MDF and the front baffle

is angled by 2 degrees in order to further enhance the rigidity of the cabinets. The two

floorstanding models in the range also have internal bracings adding further to the

structural stiffness of the whole construction. Please refer to section 4 for more information

about the cabinets.

the

(Ethylene

Difference between vibrations in a normal front baffle and vibrations

in a front baffle employing Decoupled Tweeter technology.

further

being

Exploded view of the Decoupled

Tweeter Technology.

Wooden front baffle