#1SomeGuy

Okay let me give this one a shot! Take a mixer of any type really (Soundcraft for PA, Rane, American DJ, Numark for DJing...music) Run the output from that into any compressors, limitors, gates, expanders that you have, take that and go to a 3 way cross over (assuming you have a sub and biamp 2 ways) Run a low crossover to the sub (below 50~100hz) and send that to one amp, and then to the sub. Take the mid crossover (80hz~2000hz typically, your speaker will have recommended ones) send that to the mid amp (a little smaller amp) and to the sub or woofer inputs on the full range cabby's. Then take the high frequency (2khz+) and send to an even smaller amp and then to your high inputs on the full range.

Okay I'm just going to start off that I'm young, I'm not the greatest audio tech phile guy on the planet, and I'm new here. Try to consider my opinions anyway! First off everyone here has named the cheap JBL's. The TR, SF and Mpro series speakers are all meant to be for the best bang for the buck. The newer SR-X series or even the old SR series are a MUCH better speaker. Granted they will cost you probably twice as much, but they will result in much better sound, power and bass. I use a set of SR series dual 12" 3 ways (I forget the model number) and they have outstanding bass. There is plenty of punch to fill a gym or in my case an audiotorium. Sound is very clear and clean, no distortion even at crazy volumes. Next up, Amplification! You can purchase the best speakers but your always going to need an amplifier to power them. A crappy amp is going to give you crappy sound. A lot of people skimp on their amps. Generally you want something that matches the continuous output of the speaker (1200watt continuous speaker, 1200watt continuous amp) Also check the load's, a lot of DJ speakers run at 4ohms or even in some cases 2ohms. Make sure the amp wattage is matched at the right load. Personally QSC power amps are the only way to go. I wouldn't buy anything else, not only are they very powerful but they give clean amplification. Very little THD even when you are pushing over 1000 or 2000 watts per channel. They are designed for power and from everything I used (from yorkville, mackie, crown, soundcraft) QSC amps are the best. Next, about the bass output. You were saying they have little bass output out of their 15" woofers someone? Anyway that's because simply, they weren't designed for it. Full range cabs are meant to deliver just that, the full frequency range. Cranking up the bass just isn't something they have to do. Still most dual 15" cabs I've used deliver plenty of bass to fill a large space. Also about rolling off about 10khz, I doubt you've ever taken a frequency generator and just played a 10khz sine wave. It's awefully high pitched, and isn't needed in high volume playback. Big deal you loose 3db's, when you are putting out 100db's or more then you aren't going to be too worried. Up around 16khz which is the average cut off for a dj speaker, you probably wouldn't even hear it at those volumes. Finally about the klipsch speakers. They aren't DJing speakers! DJ speakers are meant to be BIG, meant to have large woofers, meant to have power. Klipsch Lascala's or Hersery's just aren't meant for DJing. Granted you could use them for smaller events such (under 100 people) but for anything in a gym your going to want a lot larger speaker. I've always loved klipsch speakers, but I just never see them making it in the djing arena. There are more JBL's out there then any other brand of speaker.