Focal STELLA utopia EM Manuel utilisateur

STELLA utopiaTM EMTM

user manual

Summary

pages

STELLA utopia 4

Warning! 5

Installation 6

Connection 8

Fine TunING 10

Specifications 21

Memo 22

International guarantee 25

STELLA utopia™EM™

Thank you for choosing Focal loudspeakers. We are pleased to share with you our philosophy: “the Spirit of Sound”. These

high performance speakers feature the latest technical developments from Focal in terms of speaker design, whether it

is for high fidelity or home theater systems. In order to (make the most of these speakers) enjoy the maximum of their

performance, we advise you to read this user’s manual and to keep it carefully so that you can consult it later.

The Focal-JMlab guarantee only applies if the enclosed guarantee card is returned to us within 10 days of pur-

chase.

Running-in period

The drivers used in the loudspeaker are complex mechanical devices and require run-in period before they deliver their best performance.

They must get adapted to the tem-perature and humidity conditions of their environment. This breaking-in period depends on the

encountered conditions and can last several weeks. In order to shorten this period, we advise you to let your loudspeakers operate for

about twenty hours at medium level, playing standard musical programmes, but with a large amount of bass.

Once the components of the loud-speakers are completely stabilized, it is possible to enjoy the real performance of your

loudspeakers.

User precautions

All the products are lacquered in order to offer a resistant cabinet surface and to make the upkeep easy.We recommend the use of a dry

cloth to dust your pair of loudspeakers. If the loudspeaker is stained, then use a damp cloth.

Never use any solvents, detergents, alcohol or corrosive products, scrappers or scouring powder to clean the surface of the loudspeaker.

Avoid placing the loudspeakers near a heat source.

Accessories

Floorstanding loud-speaker systems include four decoupling spikes and four butyl cone and could be screwed, if necessary, into the four

metal inserts situated on the base of the loudspeaker. These spikes ensure a better stability for floorstanding speakers, particularly if the

floor is not perfectly flat and smooth. This stability improves clarity in bass and midrange by decoupling the system from the floor and

thus reducing floor-born resonances.This required stability allows the energy delivered by the woofer cone to be integrally converted into

sound. The enclosed spikes are adjustable in height.When the use of the spikes proves to be necessary, we advise you to place a piece

of metal (such as a coin) between the floor and the spike in order to avoid scratching a tiled floor.

Focal-JMlab, incorporated company with a capital of 527 000 euros, which registered office is situated in 108, rue de

l’Avenir, BP 374 42353 La Talaudière, registered at the RCS of St Etienne under the number 309 645 521 000 76.

The loudspeakers use a pure Beryllium inverted dome tweeter that extends the bandwidth up to 40kHz.

Because of the Beryllium potential dangerousness, the material that constitutes the tweeter, some safety instructions described below must

be followed by the user of the loudspeakers in order to avoid any risk of this material absorption.

However, the risks are extremely limited in its solid form, as the product dangerousness is linked to the inhalation, absorption or contact

of vapours or micro-particles.

1. Safety instructions

The Beryllium dome must never be in contact with abrasive material.

You must avoid any contact with the skin or the eyes, any inhalation or ingestion of the whole or a part of the Beryllium dome. The

manufacturer underlines that the Beryllium absorption by respiratory, digestive tracts or skin can lead to serious physical troubles,

because of its high toxicity for man.

We then recommend to the loudspeaker users to carefully keep the tweeter protection grille in place. If the protection grille is removed,

the user will have to carefully replace this grille after use.

Generally speaking, children must be kept away from loudspeakers and especially from the Beryllium dome.

2. In case of dome damaging

If the Beryllium dome is damaged in any possible way, you must cover it as soon as possible on all its surface with the supplied protection

adhesive tape. We recommend that you contact the retailer so that a competent department will take off and replace the tweeter.

If the dome is broken, the possible Beryllium particles must be carefully collected with the supplied protection adhesive tape and then be

placed in a hermetically sealed plastic bag. It will be sent with the loudspeaker to the retailer.

In case of absorption by skin, eye projection or in case of inhalation or ingestion of Beryllium, see a doctor.

3. End of life for loudspeakers - Information

At the end of the loudspeaker life, you must not throw this product in the environment, but you must take it to an adapted recycling

center.

For more information, please contact us directly to the following address: beryllium@focal-fr.com.

Warning !

INSTALLATION

Positioning

The loudspeakers have been engineered to deliver the most faithful sound reproduction, whether they are used for music or home

cinema. In order to enhance their performance, to guarantee a high quality of listening, sound image and tone balance, it is important

to note the following basic rules.

The listening area must be located at the summit of an equilateral triangle whose two other points of insertion are determined by

the position of each speaker. Nevertheless it is possible to modify these distances to find an ideal compromise according to the particular

disposition of the room (fig. A).

Each loudspeaker must be placed at the same height and on the same floor plan. The tweeter should be at the same height as

the listener’s ear, when the listener is in their usual listening area (fig. B).

Avoid placing the loudspeakers too close to the room’s corners or walls. This will induce some unwanted room resonance and

artificially increase bass response. On the contrary, if the bass level proves to be insufficient, it is possible to move the speakers closer to

the walls to adjust the bass level (fig. C).

Optimization

To please the perfectionists, we shall give an optimum positioning formula: if A is the distance from the boomer centre to the closest wall

(floor or wall), B the intermediate distance and C the longest distance (A<B<C), the relation B2=AC determines the ideal position of

the speakers (fig. D).

• Example 1:

The woofer centre of the Stella Utopia EM is 80cm (311/2”) from the floor (C=80cm), standing 50cm (20”) from the back wall (B=50cm),

the side wall will be ideally 63cm (241/2”) (A=√BC ⁄ A=63cm).

Connections

Input sockets ensure reliable multipurpose connections for stripped cables as well as for plugs.

It is imperative to respect the connector polarity of both the loudspeaker and amplifier. The positive terminal “+” must be connected to

the corresponding (matching) amplifier’s terminal and the negative terminal “-“ to the negative terminal. Stereo image, soundstaging

and bass perception would be seriously compromised if these conditions were not respected.

INSTALLATION

Connection

Power supply connection

Connect the power supply on the Stella Utopia EM.

Switch ON (Autopower mode). The power supply automatically switches on or off when an audio signal is present or not.

Nom = Nominal (normal mode)

Power cord

Alimentation

DC terminal

Subwoofer level setting

ON/OFF switch

Warning: Do not use without continuous current power supply.

Mono-amplification

Use the supplied straps and connect the inputs as indicated.

Bi-wiring and bi-amplification

Do not use the straps. Connect each cable or each amplifier on the BASS and MAIN inputs.

To Bass Amplifier To Main Amplifier

CONNECTION

Fine Tuning

OPC + settings

Rotary switch of the EM power supply

in nominal positon.

-2

-4

-6

23510 20 30 50 100 200 300 500 1k 2k 4kHz

position 2: +2dB

position nominal: 0dB

position 1: -1dB

Bass section: power supply setting

Bass section: quality factor setting

-2

-4

-6

23510 20 30 50 100 200 300 500 1k 4kHz

position 3: +2dB

position 2: 0dB

position 1: -2dB

-2

-4

-6

20 30 50 100 200 300 500 1k 2k 3k 5k 10k 40kHz

20k

Midrange section: slope settings

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