Focal SOPRA User Manual (English)

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Connections

Sopra connectors provide reliable, multi-purpose contacts for stripped cables (up to 4mm diameter), fork terminals

or banana connectors. It is imperative to respect the connector polarity of both the loudspeaker and the amplifier. The

connector marked “+” must be connected to the positive output on the amplifier and the connector marked “-” must

be connected to the negative terminal (fig. A). Stereo image and bass perception would be seriously compromised if

these conditions are not respected. Choose good quality cables with a cross-section appropriate to their length: your

retailer will be able to advise you.

Positioning

These loudspeakers have been designed to deliver the most faithful reproduction of all kinds of music or home

cinema programmes. Nonetheless, we recommend following these simple rules to optimise their performance and

to guarantee good tonal balance and a realistic sound image.

The loudspeakers should be positioned symmetrically, facing the listening area, ideally forming an equilateral

triangle with it. However, these distances may be adjusted to find the ideal compromise according to the design of

your interior (fig. B).

The loudspeakers should be positioned at the same height, in the same horizontal plane. Ideally, the tweeter

should be positioned at the same height as the listener’s ears in the usual listening position (fig. C).

Do not position your loudspeakers too close to a corner of the room and do not place them too close to a wall. This

will induce some unwanted room resonance and artificially increase bass response. On the other hand, if the bass

level is considered to be insufficient, you could try moving the loudspeakers nearer a wall to re-balance the bass

level (fig. E).

Optimisation

For perfectionists, here is a formula for optimal positioning:

If A is the distance from the centre of the woofer to the nearest floor or wall, B is the distance to the next closest

floor or wall, and C is the greatest distance (A < B < C), the equation B

= AC defines the ideal loudspeaker position.

• Example:

If the centre of the woofer is 20” (50cm) away from the rear wall (A) and 24” (60cm) above the floor (B), then the side

wall will be ideally 28” (72cm) away [C = B

⁄ A = 28” (72cm)] (fig. D).

Our policy of continual product improvement means that Focal-JMlab reserves the right to modify the technical specifications of its products without notice.

Product may vary from images.

SOPRA

™

User manual

English

Please validate your Focal-JMlab warranty,

it is now possible to register your product online: www.focal.com/warranty

Notice_Sopra_CODO1482_V2.indd 13 14/03/2019 15:58:33

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Focal SOPRA Specifications

General

Sensitivity	91dB
Nominal Impedance	8 Ohms
Minimum Impedance	3.1 Ohms
Type	3-way bass-reflex floorstanding speaker
Drivers	1" (27mm) Beryllium tweeter, 6.5" (16.5cm)
Crossover Frequency	250Hz