Aug 21, 2007 05:23 pm Quote:
highs/mids thru the 15's
I'd never think of a 15" for highs/mids.
Crossover Confusion
Posted on Aug 21, 2007 03:36 pm
mclir9
www.witchsmark.com
Member Since: Aug 13, 2006
I have a Behringer CX3400 crossover that I just bought and haven't used yet. I have a pair 15" Peavy's and a pair of 18" Subs. What is a good setting for the Crossover to do its thing?? Here is a link to the Crossover so you all know what knobs and buttons it utilizes. My system would be using the 2-Way mode, as I would be running highs/mids thru the 15's and lows thru the 18's.
www.behringer.com/CX3400/index.cfm?lang=eng
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Aug 21, 2007 05:23 pm Quote:
highs/mids thru the 15's
I'd never think of a 15" for highs/mids.
Aug 21, 2007 06:39 pm I am assuming there is a hurn in the 15" hipacks as well...
I'd cross over at 150 or so...
What you have there is a three way crossover...cool, but unnecessary, you need two ways, one slice at a buck and a half, send the lows to the bins and highs to the hipacks, easy as that.
Aug 22, 2007 04:50 am i'd take it to the next level and use the 18's for everything below 80hz....either way, i REALLY don't see a need for 18's AND 15's....they cover pretty much the same frequency range....
please tell me you got some 12's and horns with this setup...because a 15" speaker doesn't do well with the high end.
on a side note, i JUST NOW learned dosn't has an e in it....and all this time i thought spell checker just didn't do contractions! HA!
Aug 22, 2007 09:12 am Bummer. Thats what my setup has, two 15" yes they both have horns, and the two 18" subs. So did I just waste my time and money buying these Subs and Crossover. DB, the Crossover is a 2-Way or 3-Way Stereo or Mono 4-Way, so I can use the 2-Way option that it comes with. Oh man, I hope I can get away with running the Mid/Highs thru the 15's.
Aug 22, 2007 09:47 am Yes, a 12" and horn would better cover the mids but a 15" will do just fine if you take those ultra lows off it's load with the crossover...it frees up the speaker to better handle what is getting given to it...
The mid/highs will do fine with the 15/horn system. Not the finest choice, but will most certainly do the job. And yes, dropping the xover point to 100 or 80 would be good considering you have 15's in the hipacks.
Aug 22, 2007 10:17 am Ok, thanks DB for the vote of confidence. On my CX3400 there is like 2 Channels that I need to ultimately setup, typically the 2 sides on the front panel are duplicates of each other. When it comes to the Crossover Frequency it has 2 knobs to adjust, 1 on each channel. Do I set them both at for instance 100?? Does this mean that the unit will take all of the Lows 100 and below and send them to the AMP controlling the Lows and everything above 100 will go to the AMP controlling the Mids/Highs?? There is also on the back 2 toggle switches that switch each channels Crossover Frequency from controlling 44Hz - 930HZ (Out) or 440Hz - 9.3KHz (In). I'm guessing to get what I want to do I should setup both Crossover Frequency knobs to 100, and leave both toggle switches on the back to (Out). Am I correct with this??
Aug 23, 2007 08:21 am Are you supposed to setup a crossover with 2 different settings,
1. to tell it to put everything below 100Hz to the Lows &
2. to tell it to send anything above 100Hz to the Mids/Highs and if so what number would I Crossovder to send to the highs??
Aug 23, 2007 08:29 am For two way it should be one setting...presumably the break between low and mid will be the one...the low side of that setting goes to the bins, the high side goes to the hipacks.
Read the manual to see how to use your crossover in 2-way mode. You should really only need one two way crossover, as I doubt you run your PA in stereo...if you do, well, it's rarely worth it in small clubs and crap.
Aug 23, 2007 11:10 am Hope this didn't double up.
So dB to run Mono I could setup like this.
1. [Out Mono] Mixer
2. [In Channel A] i882 Sonic Maximizer [Out Channel A)
3. [In Channel 1] CX3400 [Out Channe1 1 Low & Channel 1 High]
4. [In EP2500 AMP Lows] & [In EP2500 AMP Mids/Highs]
5. Set both EP2500's to Parallel or Bridged Mode and out to respective speakers.
Does this look like an OK sequence?
Is it better to Parallel Mode the AMPS or BRidged Mode??
Aug 23, 2007 01:05 pm yeah, looks right...and I have always used bridged mode if memory serves me correctly...
Also, you can use the stereo outputs from the mixer, and just have everything panned dead center if it makes things easier to understand...that is what I always did. Technically I guess I ran stereo, but I never used it as suchY
Aug 24, 2007 07:47 am I stuck with running stereo and keeping everything panned center too. I went ahead and bridged the AMP running the Subs. I stopped by the GC on the way home and the sales guy there told me how to setup the Crossover properly, and then took me in the Big Room (this is where they keep everything they sell Pro-Audio wise to demonstrate to people first hand) and showed me what the Subs should sound like and differences in using different frequency settings. This was extremely helpful, as I realised why I wasn't getting alot of volume from my subs when I was doing a Mic check the other night... duh my voice isn't under 100Hz. Anyways I went home and setup my system based on everybodies great information, threw in Godsmack and HOLY CRAP this system is sounding freaking unbelievable. The only bad thing is I am going to have to wait to play gigs to use half the setup because for in the practice studio it's just waaaaaay to overkill, however live I can't wait.
That all being said now my only issue is a concern with the Crossover... I am using the Sum to link Channels 1 & 2's Lows together, which from what I understand sums up the total of both inputs to channel 1's output. With this wouldn't I just use Channel 1's output to go into the EP2500 SubAMP #1 Input?? Would I still use both Xover Low Outputs and both EP2500 SubAMP Inputs??
Aug 24, 2007 09:33 am huh?
Sorry, I didn't quite catch the drift of that last part...it sounds right, but it wasn't real clear...at least not to my kind rain-soaked, no sun, burnt out brain today...
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