b'74 TECHNICAL DATA|TYPES OF SYSTEM|ACTIVE SPEAKERSActive SpeakersActive speakers contain their own amplifier to drive the speaker,adding more active speakers and cascading the signal from which will be matched by impedance and power handling. one to the next.Some active models contain an amplifier that can also driveHowever, each speaker also requires power from the mains, another passive speaker (satellite). The main advantage of thisso this should be considered when planning an active speaker type of system is that there is no need for separate amplifiers,installation.which also means that the system can be expanded by simply Individual active speakersSIGNALAMP AMP AMP AMP AMPPOWER SUPPLY POWER SUPPLY POWER SUPPLY POWER SUPPLY POWER SUPPLYActive speakers with satellitesSIGNALAMP AMP AMPPOWER SUPPLY POWER SUPPLY POWER SUPPLYDispersion AnglesCalculating the spacing required in-between speakers using the dispersion angleThe spacing between speakers should be the distance Calculating the spacing requires trigonometrybetween the dispersion overlap at the listeners height. (using Tangent) in the following equation.(Speaker heightListener height) x TAN (dispersion angle / 2) x 2Example: (2.81.5) x TAN (45) x 2 1.3 x 1 x 2 = 2.6m apart (speaker spacing)Speaker spacingRoom Height 2.8mDispersion90Listener Height 1.5mT0161 749 8180 Esales@avslgroup.com www.avsl.com'