Unofficial Mackie User Forums > DL1608/DL806/DL32R/ProDX Mixers
EQ settings
Fluddman:
This is what mine looked like at the last gig. But it does change from gig to gig.
Try using high pass filters on your channel EQ. This will really help clean up the bottom end.
Cheers
PeterKorg:
Sorry I should have given more details so here goes, I use all 16 channels 5 piece band
RCF ART 705 active subs and RCF ART 312 active tops
DW drum kit with Akg d112 on kick and and Akg C418s on snare and toms
Bass DI, lead guitar with Marshall mic'd sure sm57, keys in stereo, lead vocal using wireless sure sm58 beta, and sm58's for backing vox
I have tried bringing up the EQ but always causes boomy feedback,
Don't get me wrong we have a good sound from the PA, no complaints from my band or from the punters, but always concerns me that the EQ is pushed down, just doesn't seem right, which is why I asked for other people's experience
Cheers
Pete
sam.spoons:
Bass 'boom' is usually a function of room resonances, smallish rooms have higher resonant frequencies than bigger rooms (obviously, sorry) and pubs and bars often have resonances in the 20-100hz region, a room 8 metres long will have a primary resonance around 43 Hz, slightly higher than a bass guitar low E, typical room heights of 2.5 metres generate a resonance at around 140Hz. Avoid placing the subs in a corner and, if necessary, turn the subs down to stop energising the room nodes. Since the room exaggerates these frequencies you'll still have plenty of bass but you'll remove some or all of the muddiness.
Also, rather than reducing all the low frequencies try to pick out the specific room nodes and make a couple of narrow cuts (these will be different for each room).
Greg C.:
--- Quote from: PeterKorg on November 21, 2013, 11:03:04 PM ---Sorry I should have given more details so here goes, I use all 16 channels 5 piece band
RCF ART 705 active subs and RCF ART 312 active tops
DW drum kit with Akg d112 on kick and and Akg C418s on snare and toms
Bass DI, lead guitar with Marshall mic'd sure sm57, keys in stereo, lead vocal using wireless sure sm58 beta, and sm58's for backing vox
I have tried bringing up the EQ but always causes boomy feedback,
Don't get me wrong we have a good sound from the PA, no complaints from my band or from the punters, but always concerns me that the EQ is pushed down, just doesn't seem right, which is why I asked for other people's experience
--- End quote ---
Are you using the high pass outputs on the sub to feed your tops? I would also agree with Sam that your sub level might be too hot relative to your tops. And make sure you use the high pass filters on your channels as previously stated to make sure you're not sending too much unwanted energy to the subs you don't need there from open mics.
Wynnd:
I've got a HZ Detector app on my iphone to identify what frequency is the problem. Then I just drop that frequency down. So my EQ is usually straight across with one or two dropped frequencies. I'm running an EV ZXA1 system with subs through an DriveRack PX. My system is quite flat. (I do use the DRPXs anti-feedback with one loud band. I don't bother with it on the other band.) Usually a smiley face or a frown on the EQ is an indication that not enough time was put into the choice of what to do with what frequencies. Properly set, an EQ is more likely to look like a very bad set of pumpkin teeth. Pink noise and a RTA (Real Time Analyzer) will let you know how the system works where it's set up and what needs to be changed. (It's also something that is not good in an occupied room. It works, just not much fun.)
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