ProSoundWeb Community

Please login or register.

Login with username, password and session length
Advanced search  

Pages: 1 [2] 3  All   Go Down

Author Topic: dbx 131 eq any thoughts or suggestions  (Read 878 times)

Scott Holtzman

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 3962
  • Ghost AV - Avon Lake, OH
    • Ghost Audio Visual Systems, LLC
Re: dbx 131 eq any thoughts or suggestions
« Reply #10 on: September 19, 2017, 02:33:24 pm »

David, I haven't seen an offering except for these fancy 3 or 4 band  but I am open to one with 6 or 7 bands with frequency ,Q , and level if available   Joey

How many channels and what kind of mixer are you inserting these into?

Logged
Scott AKA "Skyking" Holtzman
River Delta Audio is now:

Ghost Audio Visual Solutions, LLC
Cleveland OH
www.ghostav.rocks

g'bye

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 7424
  • Duluth
Re: dbx 131 eq any thoughts or suggestions
« Reply #11 on: September 19, 2017, 02:35:49 pm »

David, I haven't seen an offering except for these fancy 3 or 4 band  but I am open to one with 6 or 7 bands with frequency ,Q , and level if available   Joey

Common opnion has it that if you need more than 4 PEQ filters and a HPF, something is not right with the physical setup of the speakers or their DSP...if any.

If you're looking for a really nice PEQ with lots of filters, find a KT DN410:

2 channels of 5 filters each or flip a switch and get one channel with 10 filters.  It is 2rack spaces, though.

Another option for one rack space would be some FBX1100 type unit which gives 12 filters/channel but requires some practice to get speedy at using it as a manual unit.

PS

I have either/both on my shelves and am liquidating inventory in retirement. 
Logged
Pay no attention to the man behind the curtain...

John L Nobile

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1339
Re: dbx 131 eq any thoughts or suggestions
« Reply #12 on: September 19, 2017, 03:11:49 pm »

Common opnion has it that if you need more than 4 PEQ filters and a HPF, something is not right with the physical setup of the speakers or their DSP...if any.

If you're looking for a really nice PEQ with lots of filters, find a KT DN410:

I had 4 of those. Great units. I stopped using them when I got a digital board.

What are you using for a board? Smaller digital units are a lot cheaper than a single good EQ used to be.
Logged

Don T. Williams

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 447
  • Midas Pro 1 & 2, M32, dbTech T12, T8, S30, DM12
    • Q Systems Music & Sound
Re: dbx 131 eq any thoughts or suggestions
« Reply #13 on: September 19, 2017, 03:21:34 pm »

Joseph, one of the problems with most 1/3 octave graphic eq's is that they really aren't 1/3 octave!  Let me explain.  Yes the frequency band centers are 1/3 of an octave apart, but the filters are usually much wider than 1/3 of an octave.  They are usually an octave or so wide, sometimes more, sometimes less, and it varies from model to model.  The reason is that when you boost (yes I know you won't be boosting) a frequency band that is narrower than about an octave wide, it tends to sound bad to the human ear.  Maybe I should have said over-boost.  So the easy solution is to make 30 one-octave filters on 1/3 of an octave centers, and it sounds more "musical" to most users.

There are other choices for eq's.  I have had good luck with Behringer FBQ 1000's and FBQ2496's.  I don't use these in the automatic feedback detection mode, but I use them because they have 24 parametric filters adjustable in 1/60ths of an octave for center frequency.  The band width increments is from 1/60 to 2 octaves (again in 1/60ths of an octave).  I set and "lock" the filters.  I know some people won't use anything with the "B" in it, but this has been a reliable product, and usually the non professionals (church and school volunteer sound crew) can't and don't attempt to mess with them. Other manufacturers have products with these features also, so look around.  This type product could fit your requirements exactly.
Logged

Ivan Beaver

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 8101
  • Atlanta GA
Re: dbx 131 eq any thoughts or suggestions
« Reply #14 on: September 19, 2017, 03:55:05 pm »

Common opnion has it that if you need more than 4 PEQ filters and a HPF, something is not right with the physical setup of the speakers or their DSP...if any.


Exactly.  Many people ruin a perfectly good loudspeaker system by "Whacking away" at it till there is nothing left.

If you are "ringing out" a room, once you get to 4 filters it is best to STOP!!!

Sure, you can just keep going, and keep lowering the headroom of the system, but it is not going to get any better sounding.

You will just dig a hole so big that you throw you and the PA system into it and cannot get out.
Logged
A complex question is easily answered by a simple-easy to understand WRONG answer!

Ivan Beaver
Danley Sound Labs

PHYSICS- NOT FADS!

John L Nobile

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1339
Re: dbx 131 eq any thoughts or suggestions
« Reply #15 on: September 19, 2017, 03:58:44 pm »

Exactly.  Many people ruin a perfectly good loudspeaker system by "Whacking away" at it till there is nothing left.

If you are "ringing out" a room, once you get to 4 filters it is best to STOP!!!

Sure, you can just keep going, and keep lowering the headroom of the system, but it is not going to get any better sounding.

You will just dig a hole so big that you throw you and the PA system into it and cannot get out.

I've always preferred 5 band PEQ's to 4. Always nice to have one or two spares when the gig starts.
Logged

joseph baio

  • Newbie
  • *
  • Offline Offline
  • Posts: 26
Re: dbx 131 eq any thoughts or suggestions
« Reply #16 on: September 19, 2017, 04:38:37 pm »

I've always preferred 5 band PEQ's to 4. Always nice to have one or two spares when the gig starts.
I agree having an extra filter or 2 is good. Rite now I don't have any processing between amps and mixer. 4 way mains with just 1 to 3 corrective peq each band. Each rack being a mono rack I would like a mono peq to stuff in there for room correction if any all maybe a boost of 100hz to pound the room hard when needed. I never really thought of using a peq vs graphic. I thank you all very much for the idea, its starting to grow on me the more I think. I have 4 extra spaces in my mains racks space isn't an issue. How about Rane pe-15 what is your ideas on that unit? I like Rane and still use their dj mixers in installs and have a few personal mp2016s in my collection.    joey
Logged

Don T. Williams

  • Sr. Member
  • ****
  • Offline Offline
  • Posts: 447
  • Midas Pro 1 & 2, M32, dbTech T12, T8, S30, DM12
    • Q Systems Music & Sound
Re: dbx 131 eq any thoughts or suggestions
« Reply #17 on: September 19, 2017, 06:28:41 pm »

Joseph, from my earlier comment, I did not want to imply that you need or or should use all 24 bands of PEQ (2 channels of 12 filters).  I am 100% in agreement with the other comments if they are referring to portable systems and channel EQ.  I have had permanent installations that have used more that 4 PEQ filter bands, but I don't think I have ever used more that 8 or 9 bands per channel.  In those rare cases I was using SMAART with most of the "extra" filters set between 1 to 3  1/60ths of an octave working on room mode/system interaction caused feedback frequencies.  Sometimes a filter or two is used broadly (but gently) to add a little high sparkle, bottom weight, or take some tubbiness out of the mids, but I have never "filled up" a processor.  You really can over-eq, and there are diminishing returns with each filter that's added.
Logged

joseph baio

  • Newbie
  • *
  • Offline Offline
  • Posts: 26
Re: dbx 131 eq any thoughts or suggestions
« Reply #18 on: September 19, 2017, 08:25:22 pm »

Joseph, from my earlier comment, I did not want to imply that you need or or should use all 24 bands of PEQ (2 channels of 12 filters).  I am 100% in agreement with the other comments if they are referring to portable systems and channel EQ.  I have had permanent installations that have used more that 4 PEQ filter bands, but I don't think I have ever used more that 8 or 9 bands per channel.  In those rare cases I was using SMAART with most of the "extra" filters set between 1 to 3  1/60ths of an octave working on room mode/system interaction caused feedback frequencies.  Sometimes a filter or two is used broadly (but gently) to add a little high sparkle, bottom weight, or take some tubbiness out of the mids, but I have never "filled up" a processor.  You really can over-eq, and there are diminishing returns with each filter that's added.
Don, I knew you didn't imply I should use all 24 filters as it makes common sense not to use what you don't need. Believe me when it comes to audio I try to make it work with as minimal interaction as possible . I want the creators who made the song be transmitted not my interpretation maybe just emphasize the bass a tad. In my experience when the building is shaking outside the patrons waiting online to enter seem to get into a fever pitch and more willing the price we charge to get inside.   joey
Logged

brian maddox

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1473
Re: dbx 131 eq any thoughts or suggestions
« Reply #19 on: September 20, 2017, 12:31:16 am »

Don, I knew you didn't imply I should use all 24 filters as it makes common sense not to use what you don't need. Believe me when it comes to audio I try to make it work with as minimal interaction as possible . I want the creators who made the song be transmitted not my interpretation maybe just emphasize the bass a tad. In my experience when the building is shaking outside the patrons waiting online to enter seem to get into a fever pitch and more willing the price we charge to get inside.   joey

Wut?
Logged
brian maddox
11brian.maddox11@gmail.com

'...do not trifle with affairs of dragons...

       ....for you are crunchy, and taste good with ketchup...'
Pages: 1 [2] 3  All   Go Up
 


Page created in 0.239 seconds with 21 queries.