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SOPRA
™
U s e r m a n u a l
15
In general, aim to have a reflective wall behind the loudspeakers for the sound to develop correctly. The wall behind the listening
area, on the other hand, should ideally be sound-absorbing to avoid rear reflections "contaminating" the stereo image.
Furniture can be strategically placed near the side walls of the room to diffuse sound waves and ensure certain frequency ranges
are not excited, particularly in the midrange (suppression of flutter echoes).
Spikes
Sopra floorstanding loudspeakers are equipped with decoupling spikes built into the glass base. These spikes give the floorstanding
loudspeakers very good stability, particularly on uneven floors. The height of the spikes supplied can be adjusted to ensure the 4
spikes rest evenly on the floor to prevent any wobbling. Once the height of the spikes has been adjusted correctly, lock them in
place using the locking nuts (fig. F). Four spike pads are also supplied to protect soft floors such as parquet, etc. (fig. G).
Fastening Sopra N°1 loudspeaker to the stand
We recommend fastening the Sopra N°1 loudspeaker to the stand using the four screws supplied with the stand (fig. H).
Foam Bung for Bass Tuning (Sopra N°1)
This foam bung allows you to make some fine adjustments to the bass performance of your loudspeakers. The Sopra N°1 loudspeaker
has been designed to reproduce deep bass in an even manner for a "free space" position. If you position your loudspeakers close
to a wall, bass frequencies are further enhanced. Similarly, some rooms have an acoustic that exaggerates low bass. The foam bung
allows you to reduce the amount of energy from the port tube to reduce bass levels and improve damping in such situations. It is
advised that you use the foam bung for both loudspeakers. To do so, insert the foam bung into the port tube as shown in Figure I.
Loudspeaker choice
Your loudspeakers have been developed to be used in Stereo and Home Theater configurations. If you already use Sopra
loudspeakers at the front and want to move forward to Home Theater, it is paramount to use the Sopra Center unit and surround
Be loudspeakers. The SW1000 Be subwoofer perfectly completes any Sopra multichannel configuration.
Sopra Center loudspeaker positioning
The Sopra Center loudspeaker must be placed within close range of the screen for realistic dialogue reproduction. If a standard
projection screen is used, the center unit must be placed right under the screen for optimal performance. If a perforated, acoustically
transparent screen is used, the center unit can be placed behind, at the lower half of the screen (fig. J).
Surround Be loudspeakers installation
Securely fasten the fixation rails onto the wall using the provided plugs and then insert the Surround Be (fig. K).
Surround Be positioning
As it is detrimental to perception, avoid placing the surround loudspeakers too far back in the listening area. The best location can
be obtained when Surround Be loudspeakers form a 120° to 160° angle with respect to the listener. (fig. L). Place Surround Be
loudspeakers sufficiently high, (between 50cm and 90cm) above the listener's ears.
Surround Be Bi/Twin Modes
This speaker features a double Bi/Twin operating system allowing it to be used either in standard bipolar mode (Bi) or in double
monopolar mode (Twin). Adequately defining parameters on the three positions mode selector and on the double input connector,
(providing one or two power amplifier connection capabilities for each speaker) enables Surround Be to implement 5.1 or 7.1
configurations using only one pair of surround loudspeakers. (fig. M)
This selector authorises the loudspeakers to work together or divided in two groups (
and
), carrying different information to both
the front and rear of the listening area (fig. N). The three position mode selector allows you to choose between the "Bipolar mode"
), according to the speaker direction (fig. O).
and two "Twin modes" (Front
and Front
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