User manual FOCAL CMS 50

[. . . ] CMS 50 and CMS 65 Packaging content The loudspeaker is supplied with the following elements (apart from this manual): · 1 protection grille for the tweeter with phase plug (we advise you to remove it before listening to the speakers. ) · 1 protection grille for the woofer (we advise you to remove it before listening to the speakers. 1 guarantee card Please check that none of these items is missing, and remove all accessories from the box. To remove the loudspeaker from its box without damage, open the end flaps fully and bend them right back. [. . . ] They can be sitting on the console top, hung or even placed on appropriate stands. In any way, it is recommended that the tweeter is at a height from the floor approximately equivalent to that of the listener's ears. If required, it can make sense to place the speakers upside down so that the previous rule is better fulfilled. The CMS loudspeakers could be placed vertically or horizontally depending on the environment, preferably pointing towards the listener (fig. Once the position is defined, you have 2 kinds of feet (4 rubber feet and 2 adjustable spikes) to optimize the loudspeaker positioning (fig. The gap and the right/left positioning of each loudspeaker permit to control the width, the centering and the global coherence of the soundstage (left/center/right), at the source of your recording precision. Running in As in all brand new loudspeaker, the drivers need some run-in period: the CMS transducers are mechanical elements demanding a little time to settle and adapt to the climatic environment. This period will vary, depending on the working conditions and may take up to a few weeks. Avoid pushing the speakers very hard during their first hours of use, but to accelerate the run-in process, it is good practice to operate the speakers at moderate levels for 20 hours or so, with programs having significant low frequency content. Only once the transducers have come to stabilize will you get the optimum performance. We advise you to set the rotative switch on FULL RANGE (deactivate the high-pass filter) in the case of a use in stereo configuration (2. We advise you to use the positions 45, 60 or 90Hz in the case of a use of the system with one or several subwoofers. 2 LF SHELVING The LF SHELVING rotative switch permits to activate or not a correction of the sound level under 450Hz. We advise you to set the LF SHELVING rotative switch on +2dB when the premises acoustics naturally softens that frequency range. We advise you to set the LF SHELVING rotative switch on FLAT when the premises acoustics is neutral. We advise you to set the LF SHELVING rotative switch on ­2, -4, or ­6dB when the loudspeakers are placed next to a wall or an angle. 3 DESKTOP NOTCH The DESKTOP NOTCH rotative switch permits to activate or not a correction of the sound level at a central frequency of 160Hz for a Q factor of 2. We advise you to set the rotative switch on ­2, -4 or ­6dB when the loudspeakers are positioned on a table, a console or any other support that creates reflections. 4 HF SHELVING The HF SHELVING rotative switch permits to activate or not a correction of the sound level from 4. +2dB when the premises acoustics naturally softens this frequency range (mat environment). ­2 or ­4dB when the premises acoustics naturally increases this frequency range (brilliant environment) 5 INPUT LEVEL The INPUT LEVEL rotative switch function is to make the output sensitivity of the mixing console, or any other source, correspond to the input sensitivity of the loudspeakers. 6 FIXING POINTS The fixing points are made to ensure the link between the loudspeaker and a fixing support (stand, wall fixing, ceiling fixing, . [. . . ] You are advised to try various locations so to choose the one giving the best possible and most level sound balance. As a rule of thumb the optimal location will often be in a corner of the room. It should also be optimised taking into account the actual location of the subwoofer and its acoustic consequences: for example in an angle the 6 dB acoustic gain should be compensated by an equivalent attenuation to maintain the overall balance of the system. 2 MUTE This switch will turn out the output signal of the subwoofer channel (making it silent does not require to switch the power off). [. . . ]