Do I need crossover for subs?

I have a system in which i need to have 2 amps and a crossover to hook up my speakers & subs, how do i do it?

• this is a mobile dj system and im used to just having an amp an speakers but i have the club series amps that i need to hook up to it but i heard that i need an extra amp and a crossover. if anyone is knowledgable in this feild you help will deeply apreciated.

• Answer:

  As this is a DJ system, this would fall under the non-existent “pro-audio” category. Most home theater people will have no idea how to remedy this (for example the building your own crossover guy) I happen to run a pro-audio rental company, here is how they work: Most pro speakers are made to handle a certain range of sound best. Some handle higher tones best (Tweeters or horns) some middle tones best, some lower tones best (Subwoofers). To perform as well as they are intended to, each has to be sent only the sound they reproduce best. A crossover basically takes your signal that your mixer puts out, and splits it into the different frequencies. It sends the low notes to your subwoofers, your middle to the middle range speakers, and the high to the tweeters. Since you already know that you need a crossover and some amps, here is how to hook it up. The output from your turntable mixer or CD player mixer (Usually 2 RCA plugs, or ¼” plugs) plugs into your crossover. Your crossover has 2 or more outputs for each channel. The low output on channel 1 goes to input 1 on your subwoofer amp. The low output on channel 2 goes to the channel 2 input on your subwoofer amp. Do the same for your main speakers. Channel 1 High output on the crossover goes to channel 1 input on your main speaker amp. And channel 2 high output on the crossover goes to your channel 2 input on your main speaker amp. Hook up your speakers to the amps as you usually do, and you got it. Now as far as getting a crossover, here are a few options: Cheap: http://www.musiciansfriend.com/product/Behringer-SUPERX-PRO-CX2310-Crossover?sku=182466 Middle: http://www.musiciansfriend.com/product/dbx-223XL-Stereo-2WayMono-3Way-Crossover?sku=183507 Nice: http://www.musiciansfriend.com/product/Rane-SAC-23-Stereo-3Way-Crossover?sku=182713 All will do the job. For DJ applications, crossing over at 80-200 HZ is the normal way to do it. See what sounds best. I hope this is helpful.