DEQ 2496 RTA space requirements

The hows and whys of running sound.
Post Reply
Message
Author
djtrumptight
Posts: 823
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

DEQ 2496 RTA space requirements

#1 Post by djtrumptight »

I recently purchased a DEQ2496 and Behringer ECM 8000 RTA Mic.I was wondering if a 42 foot wide 69 foot long yard surrounded by a privacy fence be big enough to properly RTA my system.Also i cant find any info in the manual telling me how far to set the Mic up from the speakers,i think Bill suggested having the speakers about 20 feet apart,turned slightly outward.Thanks for any feedback,meanwhile i'm searching the forum for the answers.
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28967
Joined: Tue May 02, 2006 5:59 pm

Re: DEQ 2496 RTA space requirements

#2 Post by Bill Fitzmaurice »

To get a base reading you just need to be at least 30 feet from any buildings. Put the mic 10 to 20 feet from the speaker. Only measure one, you don't want multi-path issues messing up the result.

Grant Bunter
Posts: 6912
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: DEQ 2496 RTA space requirements

#3 Post by Grant Bunter »

You may get an "ambient noise to high" type error when trying to RTA with the DEQ.
Check your manual, but IIRC the large right wheel turns up the gain on the pink noise.
Adjust gain until RTA is successful.
Remember to save your baseline resulting from RTA as "System tune" or something like that.

You can also compare by simply RTA'ing the yard first, but that's really just for interests sake.

While you have it setup, practice using your Auto EQ as well. By rights that shouldn't be any different from the RTA baseline...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

djtrumptight
Posts: 823
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Re: DEQ 2496 RTA space requirements

#4 Post by djtrumptight »

Thanks Bill and Grant.
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

Grant Bunter
Posts: 6912
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: DEQ 2496 RTA space requirements

#5 Post by Grant Bunter »

No worries :)

If I can help in any other way (other than with FBD, which I haven't got into totally yet), give us a yell...
Built:
DR 250: x 2 melded array, 2x CD horn, March 2012 plans.
T39's: 4 x 20" KL3010LF , 2 x 28" 3012LF.
WH8: x 6 with melded array wired series/parallel.
Bunter's Audio and Lighting "like"s would be most appreciated...

djtrumptight
Posts: 823
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Re: DEQ 2496 RTA space requirements

#6 Post by djtrumptight »

After i RTA the system,when i get to events do i still use 1 speaker to AUTO EQ or all tops ?
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

User avatar
Bill Fitzmaurice
Site Admin
Posts: 28967
Joined: Tue May 02, 2006 5:59 pm

Re: DEQ 2496 RTA space requirements

#7 Post by Bill Fitzmaurice »

djtrumptight wrote:After i RTA the system,when i get to events do i still use 1 speaker to AUTO EQ or all tops ?
In room you want to place the measurement mic either in the FOH or in the middle of the primary listening area, RTA with everything up and running. You can never get perfect response throughout a room, so use one of those options and don't go nuts trying to get it right everywhere.

djtrumptight
Posts: 823
Joined: Tue Dec 15, 2009 6:08 pm
Location: Detroit,Michigan

Re: DEQ 2496 RTA space requirements

#8 Post by djtrumptight »

Thanks Bill.
Built:
2 Autotuba's MCM 55 2421
8 T48's 24"wide 3015 LF
2 DR 250's melded Deltalite II 2510
2 DR 250's flat Deltalite II 2510
2 SLA HT systems
1 Table Tuba Dayton DCS 255-4
2 T 39's 20" wide 3012 LF
1 T-18 13" wide MCM 55 2421
2 SLA Pro's

Post Reply