DJ speaker packages that include subwoofers often use small main speakers (8-10″ woofers) and let the sub do most of the work. If you are playing larger rooms you’ll probably need mains with 12-15″ woofers and a sub or two. Subwoofers use 15-18″ speakers, with the 18″ having a lower frequency response.
Passive, full range speakers need a power amplifier and speaker cords to work and the speakers have a built-in crossover that separates high and low frequencies http://itsnews.co.uk/ . The speaker has one cord running to it from the amplifier located near the DJ mixer, in a normal setup.
Passive speakers are going to be lighter to transport and lift because they don’t have an amp in it, so you will have to take an amp to power them. You can also add two more speakers to the one amp in most cases*, with a short speaker cord daisy-chained from another speaker. Be sure and use good speaker cables, not lamp cord.
Note – Using an under powered amplifier with passive speakers and pushing it to the max will blow them both; the heat from the amp overworking will shut it down, and the distorted signal from the amp will take out the speakers. Always use a power amp rated for the same, or a little more, power than the speakers. You want clean volume and you need some amp headroom available for that.
Powered speakers usually use a ¼” guitar cord or XLR input, plus an AC power cord running to it. If the DJ mixer doesn’t have balanced outputs you will need a -10/+4 box to balance and kick up the signal volume. Or if the inputs are on the sub, it will have to be located near the DJ mixer (<15-20′) to use the unbalanced outputs on the mixer. This could be an issue if you use vinyl turntables because of the vibrations.
Use quality AC extension cords, not the small ones from the drug store because loud volume will draw more current through the AC cord and make it hot (and possibly melt) if the wire gauge is too small.
Another set of powered speakers have to be used (more $$) to double your speaker count with a powered speaker setup, and they usually can be daisy-chained with another XLR mic cord.
The amplifiers in powered speakers are matched for the speaker design and usually include protection limiters so you don’t blow them up. Powered subwoofer speakers usually have switch able or variable LPF (Low Pass Filter) that takes the higher frequencies out of the signal the subwoofer can’t reproduce and that wouldn’t sound good in the mix.
Are you looking for some accessories for your iPod or music player? If so, wireless outdoor speakers are good suggestions. Technology is advancing every second and cable systems are becoming obsolete. If you need to dispose of your old speaker cable, look at many of the available wireless speakers in an electronics store and make your choice.
The system of these speakers is very nice. It can make you the coolest person in the neighborhood. You can play almost any song with these speakers. Perfect for use at a campsite or in any other place where you cannot run a power cord. If you are unhappy with listening iPod with earphones, thanks to the wireless speakers so you can enjoy the music.
There are many different sizes of the wireless outdoor speakers, but they are not larger from the size of a small trash can. They are highly portable and you can amplify your music up to 70 decibels. They are designed for use outside of your home, but they are not waterproof, so do not leave them in the snow or in the rain.
Thanks to the wireless outdoor speakers you can listen a good music even out of your house. If you love your iPod, iPhone or iPad, you can share and listening music with your friends on the speakers. It is very easy to connect the transmitter with the audio player to work together. The range on which you are listening music is usually more than one hundred meters.
If you are audiophile and you like gadgets, you need to get this kind of speakers. You can make a great party with them. These outdoor wireless speakers will help you to keep the title “the king of gadgets”.