Additionally, a constant voltage speaker system allows for the use of multiple speakers on each channel, without the need for complicated impedance calculations and configurations. In a constant voltage system, all speakers on a given channel are connected in parallel and the complicated impedance calculations are replaced by simple wattage calculations. For example, if you want to connect two speakers per channel in a traditional 8-ohm speaker system, you must either connect them in series, which results in an overall 16-ohm impedance, or in parallel, which results in an overall 4-ohm impedance.In the first case, the 16-ohms impedance effectively halves the output power of your amplifier, resulting in lower overall volume levels. In the latter case, the 4-ohms impedance means that your amplifier will have to work harder and must be rated as stable at 4 ohms. Adding a third speaker to the mix would complicate it further, producing either a 24-ohm or 2-ohm overall impedance. Note that very few amplifiers are stable under 2-ohm loads, so that is usually not an option.
On the other hand, with a constant voltage system, you consider first the RMS output wattage of the amplifier. This should be reduced by 20% to compensate for insertion loss. For example, if using a 100-watt amplifier, the total load from speakers should not exceed 80 watts. This amplifier features three microphone inputs and two auxiliary inputs, each of which is active and mixed into the line and speaker level outputs.When an EMC input trigger is detected, all outputs except MIC 1 are muted, allowing for the clear broadcast of important messages. The amplifier can drive a speaker array consisting of one or more speakers presenting a 416 ohm load or to one or more 70V or 100V speakers connected in parallel as part of a large public address system. Adapters are not classified as cables. Monoprice stands behind the quality of everything we sell, and we are committed to your satisfaction. If you are purchasing a high value item, please ensure that someone can receive the package. The item "Monoprice Commercial Audio 120W 5ch 100/70V Mixer Amp with Microphone Priority" is in sale since Monday, November 13, 2017. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Amplifiers".com" and is located in Rancho Cucamonga, California.
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