The innovative active speaker system FONEL "La Grande Center-Sub": an active central channel speaker and a powerful subwoofer in the common case - the unique device by functions and possibilities. Usage of FONEL "La Grande Center-Sub" systems helps in decisions for installations of complicated cinema and multichannel audio systems:

• The frequency response matching of all loudspeakers and system in a whole,
• The distortion elimination in the frequency response which for systems with external active subwoofers,
• Creation of a correct tone value balance of a system,
• To avoid of purchase of additional external subwoofers or central channel speakers and to reduce total of components in a system and space occupied by them.

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Features of engineering solutions realized in the FONEL "La Grande Center-Sub":

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• The active speaker system when for every frequency response is provided the special separate amplifier;
• Every amplifier is made by special technology subject to characteristics of the given frequency rang;
• Has two separate RCA and XLR inputs of Center and Subwoofer and sensitivity control for each channel separately;
• A closed box with high-quality paper loudspeakers;
• The case of the speaker system is made of 22 mm MDF with a lot of fixing bulkheads; outer surfaces are coated with natural veneer, lacquer and leather and inner are worked by special damping materials that provide resonance minimization;
• A high quality phase-linear crossover of FONEL design is responsible for dividing a signal into 4 bands: subwoofer, woofer, midrange and treble. It allows to get a perfect bands adapting and evenness of amplitude-frequency characteristic;
• Automatic on/off switching of the acoustic systems by inputting or absence of a sound signal;
• High quality stabilized power sources with a big capacitor capacitance;
• A microprocessor operating protection system with signal monitoring, supply voltage, heatsinks temperature and other system parameters;
• Step-by-step sensitivity control allowing harmonizing acoustic systems and any types of signal sources;
• A possibility of amplification level adjustment for each channel separately.

Technical characteristics:

Speaker system type	active, 4-band, closed box
Frequency range	20 - 35000 Hz
Channels (bands) number	4
Number of speakers	5
Inputs, separate for Center and Subwoofer:
XLR	2
RCA	2
Power (Pnom)	500W
Sensitivity adjustment	6 steps, 0.2 - 4 V
Level adjustment, in every band	3 steps, ± 3 dB
Supply voltage	230/115 V, 50-60 Hz
Dimensions	940 x 300 x 420 mm
Weight	46 kg