2 x DR250 (melded) + 2 x DR250 (CD horn) March 2012 plans. Completed

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Titanium Hand
Posts: 561
Joined: Mon Sep 05, 2011 4:32 am
Location: Sydney, Australia

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#136 Post by Titanium Hand »

:clap: Superb! The Grimace purple on the arrays are a fantastic touch. I'm interested to hear what the process involves to eq. the DR's and the time involved? I've not done any eq before and it seems a bit of a 'dark art'

Nicely done once again
Built 2 x T39 Lab 12 loaded 457mm wide, 29inch Wide Dual Lab 12 Loaded T60 and 2 x OTop 112 2512 Melded. Powered by N.I.TRAKTOR Pro 2.6 (2.6.1 has too many issues) TRAKTOR KONTROL S2 Crown XTi2000

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#137 Post by Grant Bunter »

Harley wrote:
Grant Bunter wrote:Gonna annoy the street for a while lol ...
I've got just the place where you won't annoy the street :mrgreen:
Laughing,
Hmmm prolly gonna cost me what it would cost Tom (to come here) to freight it...

It would be interesting to see how 4 x BP102's stacked up against 2 x lite 3012's.

Looking forward to tomorrow.

If I get any bother I'll just load it up and run it out to the farm (20k away) and really crank it!
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...

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#138 Post by Grant Bunter »

Titanium Hand wrote::clap: Superb! The Grimace purple on the arrays are a fantastic touch. I'm interested to hear what the process involves to eq. the DR's and the time involved? I've not done any eq before and it seems a bit of a 'dark art'

Nicely done once again
Cheers TH,
I plan to print off a DR SPL chart and mirror image the response curve above my crossover point initially, then hit auto EQ on the DEQ and see what changes.
Then I might play around with what my (not so good) ears tell me.

The main focus tomorrow is to ensure everything is working as it should be...
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...

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#139 Post by Grant Bunter »

Grant Bunter wrote: I plan to print off a DR SPL chart and mirror image the response curve above my crossover point initially, then hit auto EQ on the DEQ and see what changes.

The main focus tomorrow is to ensure everything is working as it should be...
I did exactly as I posted above.
Holy shit.

These things are amazing.
What really got me was I am used to listening to single piezo's and being able to hear them.
I couldn't hear HF in the arrays so pulled the module off and disconnected the woofer. No probs, shouldn't have bothered!

Yep, everything is working...
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...

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#140 Post by Grant Bunter »

Grant Bunter wrote:
Grant Bunter wrote: I plan to print off a DR SPL chart and mirror image the response curve above my crossover point initially, then hit auto EQ on the DEQ and see what changes.

The main focus tomorrow is to ensure everything is working as it should be...
I did exactly as I posted above.
Holy shit.

These things are amazing.
What really got me was I am used to listening to single piezo's and being able to hear them.
I couldn't hear HF in the arrays so pulled the module off and disconnected the woofer. No probs, shouldn't have bothered!

Yep, everything is working...
After a HF problem with the WH8's discovered today, HF filters in each DR revisited. Yes there was HF but not a lot (Which was why I pulled the module on one in the first place).
Filters fixed, DR's heaps better!

Now I understand what the fuss is about these cabs :hyper:
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...

bassmonster
Posts: 1384
Joined: Wed Jul 13, 2011 9:23 am

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#141 Post by bassmonster »

Now I want a set of DR's. :clap: :clap: :clap: Got "The Grin" now? :D :twisted:

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#142 Post by Grant Bunter »

bassmonster wrote:Now I want a set of DR's. :clap: :clap: :clap: Got "The Grin" now? :D :twisted:
Why yes, I think I do lol...
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...

biggerrigger
Posts: 560
Joined: Sun Jan 28, 2007 6:32 am
Location: ohio

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#143 Post by biggerrigger »

Grant Bunter wrote:
Grant Bunter wrote:
Grant Bunter wrote: I plan to print off a DR SPL chart and mirror image the response curve above my crossover point initially, then hit auto EQ on the DEQ and see what changes.

The main focus tomorrow is to ensure everything is working as it should be...
I did exactly as I posted above.
Holy shit.

These things are amazing.
What really got me was I am used to listening to single piezo's and being able to hear them.
I couldn't hear HF in the arrays so pulled the module off and disconnected the woofer. No probs, shouldn't have bothered!

Yep, everything is working...
After a HF problem with the WH8's discovered today, HF filters in each DR revisited. Yes there was HF but not a lot (Which was why I pulled the module on one in the first place).
Filters fixed, DR's heaps better!

Now I understand what the fuss is about these cabs :hyper:
Grant what did you find the problem was with the filters and how did you sort it out? I am getting ready to build my x-overs today for my DR250's.
Built
4-25" Lab12 loaded T39's
2-DR250's Melded array
2-DR250's Flat array

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#144 Post by Grant Bunter »

The problem was, I thought I had covered the schematics, but didn't!
I left out a wire from HF - in to HF - out.

Having done them on seperate boards (compared to the LF LP), I removed modules, took out boards, added wire then reinstalled everything. Then retested.
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...

fyah2k5
Posts: 66
Joined: Tue Mar 13, 2012 10:13 am
Location: Manchester, Jamaica

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#145 Post by fyah2k5 »

Grant, i would love to try these, but these looks really hard for a novice woodworker with no tools, that's me.

Otops for me. But i must say, fantastic work. i'm even more anxious now to build my rig, sit back with some with a cold beer and watch it go boom boom boom in style

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#146 Post by Grant Bunter »

Righto, these needed grille as well:
DSC00330.JPG
Done.
Last edited by Grant Bunter on Mon Mar 30, 2020 4:10 am, edited 1 time in total.
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...

User avatar
LelandCrooks
Posts: 7244
Joined: Thu May 04, 2006 9:36 am
Location: Midwest/Kansas/Speaker Nirvana
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#147 Post by LelandCrooks »

Nicely done. DR's are worth the effort.
If it's too loud, you're even older than me! Like me.
http://www.speakerhardware.com

Bruce Weldy
Posts: 8301
Joined: Fri Nov 27, 2009 11:37 am
Location: New Braunfels, TX

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#148 Post by Bruce Weldy »

Nicely done. :clap:

6 - T39 3012LF
4 - OT12 2512
1 - T24
1 - SLA Pro
2 - XF210


"A system with a few knobs set up by someone who knows what they are doing is always better than one with a lot of knobs set up by someone who doesn't."

Grant Bunter
Posts: 6915
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#149 Post by Grant Bunter »

Thanks Gents :)

Yes Leland they are worth the effort.

I'm just wondering how long it will be until I build some with flat arrays :wink:
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...

gzc_stageTech
Posts: 303
Joined: Thu Oct 05, 2006 7:31 pm
Location: Wichita, KS

Re: 2 x DR250 build (melded) March 2012 plans. Completed.

#150 Post by gzc_stageTech »

Grant Bunter wrote:Righto, these needed grille as well:

Image

Done.
Plum Sweet!

p.s. - ya' gotta' love the BF badges.

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