STANDARD-PA
In the following we would like to explain to you how to install a typical sound reinforcement system in passive con- figuration with incorporated stage monitors. The necessary equipment is:
1 PowerMate
1Power amplifier for the monitor signal – for i. e. 2x250 watts
2Hi cabinets – i. e. 12“,
2 Lo cabinets – i. e. 15“ woofers
2Speaker
2Stage monitor speakers systems
4SPEAKON cables (8m) and 2 SPEAKON cables (2m)
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Setting up
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Place the PowerMate and the external monitor power amplifier in a way that allows their unobstructed operation and connect the mains cord.
Try to locate the best position for the loudspeaker systems. If possible, the woofers should be placed
on the floor while the Hi cabinets’ most favorable position is above the Lo cabinets. Please keep in mind, that it is important to have the lower edge of the Hi cabinets approximately at the same height level as the heads of the audience. Either use the connection rods to mount the Hi cabinets on top of the woofers or, if this kind of installation is not possible or if your application does not employ woofers, use separate speaker
Do not place the left and the right speakers further apart than necessary. The less distance there is bet ween the two speaker “clusters” – the more compact the sound.
According to the above diagram, use the SPEAKON cables to connect the woofers and the monitor speakers to the PowerMate and the monitor power amplifier respectively. Make sure not to confuse the channels by accident. Use the short SPEAKON cables to connect the Hi cabinets to the woofer outputs (parallel connection). The two monitor speakers are connected to either one output of the external power amplifier. Set the amplifier inputs to parallel or monaural operation. The amplifier’s volume controls provi de the possibility to adjust the output levels independently.
Try to avoid the positioning of the main loudspeaker systems behind the imaginary line of the microphones. Otherwise, if you have to drive the system at higher sound levels, the risk of feedback is very likely.
After you have installed all microphone stands and all artists have found their seat on the stage, the best place to install the monitor speakers is up front facing the musicians. Nevertheless, please make sure that no microphone is directly pointing in the direction of a monitor. You should also be aware of the indi vidual characteristics of the utilized microphones.
Using the stereo
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