Focal ARIA K2 Manual De Uso página 15

ARIA K2
™
U s e r m a n u a l
15
Choosing the location
Your Aria K2 loudspeakers have been developed to deliver the most faithful sound reproduction, whether they are used for
stereo music or Home Cinema. However, a few simple rules should be followed to optimise their performance and to guarantee
good tonal balance and a realistic sound image. The loudspeakers should be positioned symmetrically opposite the listening
station, ideally so that they form an equilateral triangle with it. You can, however, vary these distances to find the perfect
compromise according to specific room layouts (fig. C). The loudspeakers should be positioned at the same height in the
same horizontal plane. Ideally the tweeter will be positioned at the listener's ear level, at the usual listening point (fig. D). Do
not place the loudspeakers too close to a corner of the room and avoid placing them close to a wall. This will have the effect of
exciting certain resonances of the room and artificially increasing the bass level. On the other hand, if the bass level is deemed
insufficient, you can try moving the loudspeakers closer to the walls to rebalance it (fig. E).
Optimisation
For perfectionists, we provide the following optimal positioning formula:
If A is the distance between the boomer centre and the nearest partition (floor or wall), B is the intermediate distance and C
is the longest distance (A < B < C), the B2 = AC relationships defines the ideal position for the loudspeaker.
• Example:
If the boomer centre is 19" 3/4 (50cm) from the rear wall (A) and 23" 5/8 (60cm) from the floor (B), then the side wall will
ideally be 28 " (72cm) away (C = B /A = 28 ") (fig. F).
3/8 2 3/8
Accessories
The Aria K2 columns have spikes in the metal base (Aria K2 926 and 936). You can adjust the height using the key provided.
After use, store the key behind the protective grille of the speaker drivers (fig. G, H).
Protective caps can be added to the spikes (fig. I, J).
The Aria K2 loudspeakers are supplied with grilles to protect the speaker drivers. They are easy to fit or remove thanks to
their magnetic attachment system. We advise removing them when you are listening to music to get the best performance
from your loudspeakers.
Recommendations for use
The way the Aria K2 loudspeakers behave depends on the room's acoustics, the correct positioning of the loudspeakers within
the room and the listener's location. You can tweak each of these elements to correct or improve a desired effect.
The stereophonic perception is imprecise and poorly centred: try to move the loudspeakers closer to each other and/or point
them towards the listening point.
The sound is harsh, aggressive: your room's acoustics are probably too reverberant. Consider using sound-absorbing
materials (rugs, sofa, wall coverings, curtains, etc.) and sound-reflecting materials (furniture) to absorb or diffuse resonance.
The sound is "flat", strangled: there are too many sound-absorbing materials in the room; the sound is soaked up and has
no depth.
Aim for a better balance between the absorbent and reflective materials within your room.
In general, aim to have a reflective wall behind the loudspeakers so that the sound develops correctly. The wall behind the
listening area, meanwhile, will ideally be absorbent to prevent rear reflections from "contaminating" the perception of the
stereo image. Furniture can be placed judiciously on the side walls to diffuse the sound waves and therefore ensure certain
frequency ranges are not excited, particularly in the midrange (suppression of flutter echoes).
Choice of loudspeaker
The Aria K2 speakers have been developed to operate in stereo and in Home Cinema. If you already have Aria K2 loudspeakers
at the front and want to move to Home Cinema, you must use a central loudspeaker and Aria K2 loudspeakers for the surround
effects. This is the only feasible way to guarantee a perfect tone match and a realistic yet consistent distribution of three-
dimensional effects in the room.
Positioning the centre speaker
The central loudspeaker should be placed close to the screen for realistic dialogue reproduction. It can be placed beneath
the television if the TV unit allows this (fig. K). If a standard projection screen is used, the central loudspeaker must be placed
below the screen for optimum results. If a micro-perforated screen is used, it can then be placed behind and towards the lower
half of the screen (fig. L).