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Monday, November 16, 2009

Why Should You Invest in a Karaoke Amplifier?

By Jonathon Hardcastle

A karaoke amplifier is a powered amplifier designed specifically for the needs of the avid karaoke equipment owner. Many are designed for the karaoke DJ while a few are more designed for home use. They typically are designed to make hooking up and taking down a karaoke rig easy and provide numerous extra features over a typical public address system power amplifier.

These are all features that a professional karaoke DJ would like to have. Karaoke amplifiers are also commonly referred to as hybrids because they have the features that are also found on many pre-amps.

One feature is the ability to send audio signals from more than once source; this is due to the multiple inputs. If you have two audio sources, like an MP3 Player and a karaoke machine, there is no longer a needed for a mixer. Most also come with 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.

In terms of watts, your amplifier must be matched to your speakers and so forth. It doesn't need to be by much, but the speakers must be able to handle more power than an amplifier can put out. For example, a 400 or 450 watt speaker is needed for an amplifier that can put out a total of 300 watts.

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.

Be careful when buying a subwoofer because most come in at 1,500 watts and you don't want to run it off a simple 300 watt amplifier. By doing so, you could burn out the amplifier and not get good sound quality because it needs more power than it is currently getting. - 18423

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