How many SRM450 loudspeakers can be chained together using the THRU jacks?
The number of SRM450 loudspeakers that can be chained together at a time is limited only by the output impedance of the mixer or equipment that is directly feeding them. To insure optimum signal transfer, the net input impedance of a group of SRM450 inputs (ZT) should be no less than 10 times the output impedance of the equipment acting as the signal source. The net input impedance of a group of SRM450’s can be found by donning a propeller-laden cap, and using the following simple formula: …where n = the number of SRM450’s being chained together and ZT = The total input impedance in Ohms of the SRM450 chain. For those of you with Mackie compact VLZ and VLZ PRO mixers, this means that you can chain up to sixteen SRM450’s together without any problem; and if this isn’t loud enough, then you should remove the earplugs before continuing.
