Crossover frequencies 4-way system |
Post Reply |
Author | ||
KlaasBlackPaw
Registered User Joined: 24 October 2017 Location: Belgium Status: Offline Points: 14 |
Post Options
Thanks(0)
Posted: 24 October 2017 at 11:57am |
|
Greetings each and everyone,
We are currently in the building of our own "preamp", but this will require us to open up the 4-way crossover we are currently using and replace it with a spare behringer dcx2496. This is a parametric analogue crossover (x1 and x10 buttons on the frequencies and 4 knobs to turn alongside 4 mute buttons for each crossover section) Since this is an analogue crossover, it is less exact than the digitals. However since we're missing our crossover for now, we're wondering what are the best "exact" crossover settings to play a 4 way rig? at this time we play it around 80 - 150 - 1250. but as it is a hassle to change the frequencies on the dcx I'd like to set them decently for once untill we can use our preamp thing. Blessed day to you all
|
||
JBK
Registered User Joined: 03 March 2016 Location: Besançon Status: Offline Points: 262 |
Post Options
Thanks(0)
|
|
Greetings,
-> it depends on your boxes really!
what are you talking about? nothing easier! What I suggest you to do is, find the theorical frequencies crossover (ie best suited for your boxes) and then try your system with thoses frequencies, and then adjust by ear to what sounds best to you! The guys on here can assist in determining the frequencies that would roughly suit your boxes, but we'll need more details on your rig Edited by JBK - 24 October 2017 at 1:17pm |
||
KlaasBlackPaw
Registered User Joined: 24 October 2017 Location: Belgium Status: Offline Points: 14 |
Post Options
Thanks(0)
|
|
Hey there,
thanks; makes sense I guess haha. We're using 4x beyma 18g550 in scoops + 2x void 18" (dont know the exact model, these are from another crewmember.) inside miniscoops. 2x fane 15" bassdrivers in a selfmade 2-driver reflex bin + 2 more fanes coming soon in an individual 15" cabinet. for our mids we use 4x emenence pd 12" in 2 standard mid boxes and finaly 2 precision bullets & 4 tweeters we got from a friend in a horn & tweeterbox we use as midtop. hope this helps? thx blessed day
|
||
Conanski
Old Croc Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2515 |
Post Options
Thanks(0)
|
|
Or is this a reggae system? If so ignore that the normal rules don't apply. Edited by Conanski - 24 October 2017 at 11:23pm |
||
JBK
Registered User Joined: 03 March 2016 Location: Besançon Status: Offline Points: 262 |
Post Options
Thanks(0)
|
|
Supported, that's never a good idea to mix different speaker enclosures and or different drivers on the same frequency band.
You haven't given us enough info on the exact speaker models for us to guess the best Xover freqs. But on what you've said the one you already use seems to make sense, I would be worried about "tweeters" not going low enough to cover the 1.2Khz to 4-6KHz range, which is crucial for the vocal range but maybe you have some compression drivers? To precise what I suggested before, instead of setting the xover frequency by ear it's better to measure with a mic and rta software (do some research for more info) but as not anyone can / is willing to do that, doing it by ear is still better than nothing. But we really need precise and complete info otherwise we can't help you |
||
Keen
Young Croc Joined: 30 May 2011 Location: Brisbane, Aus Status: Offline Points: 1203 |
Post Options
Thanks(0)
|
|
|
||
Keen
Young Croc Joined: 30 May 2011 Location: Brisbane, Aus Status: Offline Points: 1203 |
Post Options
Thanks(0)
|
|
jokes on me really though.... don't even own a system atm
|
||
cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
Post Options
Thanks(0)
|
|
i'm sure he means it's more difficult to be precise when turning a knob with a big range, than inputting exact values into a digital one.
|
||
cravings
Old Croc Joined: 30 January 2007 Location: Ireland Status: Offline Points: 7441 |
Post Options
Thanks(0)
|
|
but why would you.
|
||
jammin75
Old Croc Joined: 08 July 2012 Location: west midlands Status: Offline Points: 2375 |
Post Options
Thanks(0)
|
|
3 different types of scoop and 3 different pairs of drivers all runnin on same band i personally wudnt do it this way but i was there and it was thunderin |
||
feel the vibes !!! "Who Feels it Knows it" Strong like Lion
|
||
KlaasBlackPaw
Registered User Joined: 24 October 2017 Location: Belgium Status: Offline Points: 14 |
Post Options
Thanks(0)
|
|
Greetings,
sorry for the late reply; been busy the last weeks. As we are using boxes we bought from different people all around the country; I'm unsure what type of boxes exactly we use. So I'm afraid of going into specifics as I might be wrong about the types of the rigs. The Beymas are only temporary as we already had them laying around from our BR enclosure bins. We bought scoops recently and are changing our drivers bit by bit everytime we sell one beyma, we buy a fane instead. If you want to take a guess, or see the rig you can find pictures here: https://www.facebook.com/pg/BlackPawSoundsystem/photos/ and indeed, I meant it's not so precise to turn knobs instead of put digital inputs for x-over frequencies. I'll post a picture of our setup later for more clarification. Also, I always assumed it would be best to have your microphone outputs go to your midrange speakers; but tweeters are better? we do use compression drivers for our horns, not for our tweeters.. blessed day
|
||
DMorison
Old Croc Joined: 14 March 2007 Location: Aberdeen Status: Offline Points: 1647 |
Post Options
Thanks(0)
|
|
Your mic goes into the inputs on your mixing desk, which will give some tonal control - usually at least bass/mid (with variable frequency)/treble; sometimes having 4 bands instead of 3 and sometimes having fully parametric control (especially on modern digital desk or larger analogue ones. The output of your mixing desk then goes into your crossover/DSP where it is split into the right frequency bands for the speakers you're using. Depending on the boxes you're using therefore, the vocal mics will end up with a bit of their output in all of the bands except subwoofers (for most sensibly configured systems at least). HTH, David.
|
||
Post Reply | |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |