Recommend a feedback eliminator?
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From: Leon on 14 Nov 2009 13:45 On Sat, 14 Nov 2009 12:26:36 -0500, "George's Pro Sound Co." <bmoas(a)yahoo.com> wrote: > >> > >Ok with so little to go on I have to make assumptions >assumptions >DJ is using CDJ type players >Dj has a talk mic hook to the dj mixer >dj cups the mic in his hand > >get the dj to hold the mic properly as I explained you destroy the >directionality of the mic when you cup it > >it is unlikely the cdj's are feeding back >if he has turntables then bass can cause rumble in the needles, he will >need to establish better isolation of the turntables > >but most likely it is the dj cupping the mic, added to trying to get the mic >over the already too loud music > >resolution you need a system with real head room >one that would be probably abnout 4 x-8x what you are using >the system has to reach at least 105 dB "C" weighted continous on the dance >floor for iut to "feel like a dance club" > >I would add 4 la 400 subs driven with about 600 watts per sub >the subs will give you the ball shaking you want for dance music without >needing the 450 to be overdriven > >hire a real sound system for one night to show you what you really need to >do this >gizmos and toys like feedback eliminators and eq will not make a undersized >system capable >sorry if some of my assumptions are off base but it is based on experiance, >seeing as we know very little about what you are running into > >George > As far as I know it's only mics he's complaining about... but he did admit to me the volume was too high! We used to rent subs, we got 2 - 18" subs pretty much the same as we once rented. We now have 4 - 450s and 2 experimental top boxes... 500w rms Eminence's. Out of money at the moment for more bass units. I need to go to the next gig with my sound meter and take readings... see if there are holes in the response... I'm going to make some kind of sound check CD with tones to see what I can see... or bring my function gen. GOT to get some set-up time! Do you use a sound meter or something to check the room? I imagine you have the experience to just walk thru!
From: Joe Kotroczo on 14 Nov 2009 14:26 On 13/11/2009 15:01, in article djoqf5lc1ipagctrl3hhenlgtatua106ll(a)4ax.com, "Leon(a)nospam.com" <Leon(a)nospam.com> wrote: (...) > > Oh, for the guy who said "hire a sound engineer" - ouch! Why "ouch"? -- Joe Kotroczo kotroczo(a)mac.com
From: Joe Kotroczo on 14 Nov 2009 14:27 On 13/11/2009 23:47, in article k9orf5t5emdj27jog4dn6h6ea4ra2kcc4h(a)4ax.com, "Leon(a)nospam.com" <Leon(a)nospam.com> wrote: > On 13 Nov 2009 20:27:35 GMT, Richard.Webb.my.foot(a)116-901.ftn.wpusa.dynip.com > (Richard Webb) wrote: > >> On Fri 2037-Nov-13 01:24, Leon(a)nospam.com writes: >>> We're starting to get really bothered by feedback, and need an >>> eliminator... >> >> What about 1/3 octave graphics or good parametrics? Any of >> those in the rig? > > So far we get along with a 4 band EQ in the mixer (xone92), but we're going to > get a proper graphic unit, 31 bands sounds good! Hang on: you're getting feedback with a DJ rig? -- Joe Kotroczo kotroczo(a)mac.com
From: Gareth Magennis on 14 Nov 2009 16:11 "Joe Kotroczo" <kotroczo(a)mac.com> wrote in message news:C724C348.AADA8%kotroczo(a)mac.com... > On 13/11/2009 23:47, in article > k9orf5t5emdj27jog4dn6h6ea4ra2kcc4h(a)4ax.com, > "Leon(a)nospam.com" <Leon(a)nospam.com> wrote: > >> On 13 Nov 2009 20:27:35 GMT, >> Richard.Webb.my.foot(a)116-901.ftn.wpusa.dynip.com >> (Richard Webb) wrote: >> >>> On Fri 2037-Nov-13 01:24, Leon(a)nospam.com writes: >>>> We're starting to get really bothered by feedback, and need an >>>> eliminator... >>> >>> What about 1/3 octave graphics or good parametrics? Any of >>> those in the rig? >> >> So far we get along with a 4 band EQ in the mixer (xone92), but we're >> going to >> get a proper graphic unit, 31 bands sounds good! > > Hang on: you're getting feedback with a DJ rig? > > > -- > Joe Kotroczo kotroczo(a)mac.com > The DJ has a mic. Check out the mixer front panel. http://www.allen-heath.co.uk/ahimages/hi_res/xone92_top-panel2.jpg Look at the mic channel controls available. Now tell me you are not surprised that a DJ can make it feed back. Gareth.
From: Sean Conolly on 14 Nov 2009 16:52
"Gareth Magennis" <sound.service(a)btconnect.com> wrote in message news:t2FLm.105199$1i2.20747(a)newsfe07.ams2... > > "Joe Kotroczo" <kotroczo(a)mac.com> wrote in message > news:C724C348.AADA8%kotroczo(a)mac.com... >> On 13/11/2009 23:47, in article >> k9orf5t5emdj27jog4dn6h6ea4ra2kcc4h(a)4ax.com, >> "Leon(a)nospam.com" <Leon(a)nospam.com> wrote: >> >>> On 13 Nov 2009 20:27:35 GMT, >>> Richard.Webb.my.foot(a)116-901.ftn.wpusa.dynip.com >>> (Richard Webb) wrote: >>> >>>> On Fri 2037-Nov-13 01:24, Leon(a)nospam.com writes: >>>>> We're starting to get really bothered by feedback, and need an >>>>> eliminator... >>>> >>>> What about 1/3 octave graphics or good parametrics? Any of >>>> those in the rig? >>> >>> So far we get along with a 4 band EQ in the mixer (xone92), but we're >>> going to >>> get a proper graphic unit, 31 bands sounds good! >> >> Hang on: you're getting feedback with a DJ rig? >> >> >> -- >> Joe Kotroczo kotroczo(a)mac.com >> > > > The DJ has a mic. > > Check out the mixer front panel. > http://www.allen-heath.co.uk/ahimages/hi_res/xone92_top-panel2.jpg > > Look at the mic channel controls available. Now tell me you are not > surprised that a DJ can make it feed back. So maybe a feedback eliminator might not be a bad idea, if it's only used on the DJ mic. If the mic is being handled by someone who doesn't know what they're doing, like cupping the mic or pointing it at the monitors, and the same person is controlling the volume (unsupervised), an automatic system maybe a good way to supress the feedback - after it starts. I don't think it's possible to prevent feedback under these conditions. Of course, this is trying to find a solution from one domain (hardware) to solve a problem in a different domain (lack of operator skills). The best solution is to make sure that whomever is driving the rig actually knows what they're doing: either train the DJs or get a baby-sitter. Sean |