A karaoke amplifier is designed especially for karaoke machines; but you may wonder if you truly need one. While an amplifier can be designed for home use, most are for karaoke DJs. They have more features than a traditional public address system and they ease the process of setting up and taking down a karaoke setup.
These are all features that any karaoke DJ would love. In fact, some karaoke amplifiers are known as hybrids because they have some of the features normally found on pre-amps.
One of these features is multiple inputs so you can send audio signals from multiple sources. This eliminates the need for a mixer if you have two audio sources, such as the karaoke source and an iPod for filler music. Many of these units also include a radio tuner.
A standard karaoke amplifier should have enough power to efficiently run four speakers. For a good setup, you want one speaker for the monitor, one speaker for the subwoofer, and two main speakers. The main speakers and the subwoofer are what gets the sound to everyone in your audience.
The karaoke singer can hear themselves through the monitor speaker. The best karaoke amplifiers have a built-in crossover, which means that the low frequencies from the subwoofer will only go through that subwoofer; this helps to keep them separate from the mix. For the best results, run the main speakers and the monitor on the same channel because the higher frequencies do not need too much power.
You must match your amplifier to your speakers. Ensure the main speakers are able to handle more power than the amplifier, but it doesn’t need to be too much more. For example, if you have an amplifier that can put out 300 watts, a speaker that can handle 450 watts is perfect.
On the other hand, a speaker would need to handle around 1,000 watts if the amplifier could put out 800 watts. But, when running that many watts, it is likely that you are using multiple speakers. If so, you can total the wattage from each speaker and add them together to determine exactly how much they can handle as a pair. For instance, with an 800 watt amplifier, you could run two 400 watt speakers, two 450 watt speakers, or even four 200 watt speakers.
Keep these figures in mind when buying a subwoofer because you don’t want to run a 1,500 watt subwoofer on a 300 watt amplifier. If you do, you won’t get the best sound quality and may even burn out the amplifier because more power is needed than what is being provided.
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