This may be a simple question and may not be the right question to ask, but I am planning a PA system build. I'm going for modest output but wide dispersion in a practically square room. The only components I have currently are 2 Behringer NX6000ds, a Crown XLS 1502, and a Crown XLS 1005.
My question is: Would I be able to build a three-way PA system without passive crossovers by using the low-pass, high-pass, and bandpass filters on these amplifiers?
Behringer NX6000D's running subwoofers
Crown XLS 1502 running mid-range
Crown XLS 1002 running tweeters
Is this how larger PA systems work or am I missing something?
My question is: Would I be able to build a three-way PA system without passive crossovers by using the low-pass, high-pass, and bandpass filters on these amplifiers?
Behringer NX6000D's running subwoofers
Crown XLS 1502 running mid-range
Crown XLS 1002 running tweeters
Is this how larger PA systems work or am I missing something?
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Hi, I fear that the LP and HP filters are set around 100 Hz, meaning for sub or satellite, or ...
You need a filter in the 1.5-2 kHz range ( I guess) to use a tweeter and the band pass range would be <<100/600>>>1.5/5 kHz
So you need an electronic crossover
You need a filter in the 1.5-2 kHz range ( I guess) to use a tweeter and the band pass range would be <<100/600>>>1.5/5 kHz
So you need an electronic crossover
Hi, I believe all of these amps have programmable dsp filters on them, so @picowallspeaker what do you mean by
Since you can program the dsp crossovers on each amp anywhere in the range from 20-20k you can totally make a 3 way system using this. The problem would be if the amp you want to use for the midrange (which needs a bandpass filter) doesn't have that capability, but luckily the XLS xx02 series does have that capability. So its just going to come down to you finding the right crossovers.
Ive created a three-way (but technically 4 way) system before actually with very similar parts- A xls 1000 bridged to one 18" sub crossed at 70hz, xls 2502 to drive 15" low-mids, and xls 1002 to drive the highs, which was actually a two way cabinet with a passive crossover inside of it. So, tri - amped 4-way system and it worked beautifully. I did also have a graphic rack mount EQ to do corrections for final balancing.
Since you can program the dsp crossovers on each amp anywhere in the range from 20-20k you can totally make a 3 way system using this. The problem would be if the amp you want to use for the midrange (which needs a bandpass filter) doesn't have that capability, but luckily the XLS xx02 series does have that capability. So its just going to come down to you finding the right crossovers.
Ive created a three-way (but technically 4 way) system before actually with very similar parts- A xls 1000 bridged to one 18" sub crossed at 70hz, xls 2502 to drive 15" low-mids, and xls 1002 to drive the highs, which was actually a two way cabinet with a passive crossover inside of it. So, tri - amped 4-way system and it worked beautifully. I did also have a graphic rack mount EQ to do corrections for final balancing.
One of our members swapped the DSP XO in a Crown for a PLLXO and the PLLXO was considerably better sounding.
For PA work you want faster than that, you can probably use the builkt-in XOs but i expect a better separate active XO.
dave
For PA work you want faster than that, you can probably use the builkt-in XOs but i expect a better separate active XO.
dave
Totally active 3-way loudspeaker system usually is used only in big PA systems. It is overkill for your application, but OK, you can use those amplifiers because they contain DSP internally (active crossover).
Well most people might only use a Tri-Amp system for big gigs but if you have one why not use it?
I have and I've had no complaints about SQ from my guests and no noise complaints from the neighborhood. Although currently only use the smaller Bi-Amp system as 2 killerwatts is enough
I have and I've had no complaints about SQ from my guests and no noise complaints from the neighborhood. Although currently only use the smaller Bi-Amp system as 2 killerwatts is enough
The idea looks fine. My only hesitation is that the 2x Behringer amps will have far more output than the midrange amp. Depending on the sensitivities of each speaker cabinet, program material, crossover points, etc, you might find that you're hitting the limitations of the midrange amp, while the subs aren't warm yet.
Chris
Chris
Part of my goal is to design the system to be modular, expandable, and upgradable. This way, if I only need one of the Behringer amps to start, that's perfectly fine. If certain pieces turn out to be more than necessary, I still want to ensure there's room for planned upgrades in the future. Additionally, if I end up in a larger space or need to use this system outdoors, I can essentially just build more.
Just a little note that combining cabinets in the mid-high range is difficult to do well. If you're arraying, you'll want each cabinet to cover a relatively narrow angle of the audience, which makes the cabinet useless for 1x cab per side. You'll probably end up swapping out or rotating HF horns to get the angles you desire.
One approach is to build a pair of high-output mid-high speakers, and then use varying amounts of subwoofers to get the overall system output where you want it to be.
Chris
One approach is to build a pair of high-output mid-high speakers, and then use varying amounts of subwoofers to get the overall system output where you want it to be.
Chris