NEW BUILD - Omni 15 Tall Boy in New Zealnd

High power and fidelity from an easy to build cabinet.
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Grey Owl
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Location: Mairangi Bay, New Zealand, User 1603

NEW BUILD - Omni 15 Tall Boy in New Zealnd

#1 Post by Grey Owl » Sun Sep 15, 2019 11:15 pm

Hi All,
Got the updated plans from Bill recently and now proceeding cautiously towards "the breaking of dust". :hyper:
Am now recovering quietly from a kick in the cardiac's. I've been following ewes for so many years, I'm again (after a 10 year layoff) about to burst into an enjoyable Southern Pacific Summer of speaker building activity.
I already have the birch 12 ply, 3015LF and other bits n bobs.

Some questions please for those that have already constructed this OTB15 enclosure as I'm costing out the project as we speak;

1. How much Duratex did you use; do I need to allow for? Very expensive down here from the Eminence Agent! :broke:
2. I want to use this both as a bass rig and, for full range. The NZ suppliers have APT:80 tweeter & horns at $125. Is there any advantage going to a APT:200 for keys - compatible with the plans? :o
3. I note the L-PAD option - sounds great. Is this just to tame the top end when used for Bass?
4. I'd like to have some foam attached behind my mesh grill to keep dust, dirt and gunk out. I've read about reticulated foam as the product to use. Anyone tried this yet or, have any suggestions?

No doubt I will have more need of all your experience in th following months so thanks in advance.
Cheers
:feedback:
You have two ears and one mouth. Use them in the same ratio!!

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Bill Fitzmaurice
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Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#2 Post by Bill Fitzmaurice » Mon Sep 16, 2019 6:54 am

The APT 80 and APT 200 use the same driver, the horn is different. The APT 80 has smoother response.

Bruce Weldy
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Location: New Braunfels, TX

Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#3 Post by Bruce Weldy » Mon Sep 16, 2019 9:12 am

Grey Owl wrote:
Sun Sep 15, 2019 11:15 pm

I already have the birch 12 ply


I'd like to have some foam attached behind my mesh grill to keep dust, dirt and gunk out.

12 ply is typically 3/4" .....should be 1/2" or 9 ply......unless things are different down under.

Use the thin foam that is used in window air-conditioning units. Cheap and works fine. That's what's behind the grills of my OT12s.

6 - T39 4-25" 2-22" 3012LF
4 - OT12 2512 Melded/NSD2005
1 - T24
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
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Location: Ilfracombe Queensland Australia
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Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#4 Post by Grant Bunter » Mon Sep 16, 2019 3:40 pm

G'day.
While there's a few Kiwi's here, we don't see them around much.
Probably the "go to" person to ask any questions re supply and so on would be forum member Harley Dear, who has, in the past, been an authorised builder for Bill's designs. Maybe shoot him a msg and he might respond.

In the past, I have heard of New Zealanders shipping in a tub of Duratex from Cannon Sound in Sydney. Obviously, at that stage, it was viable, but check that out to see it's still the case, and let us know please.
Do a heap of coats in flat black first, and you'll use bugger all Duratex (and leave plenty for touch-ups over time).

Also not sure what it would cost to ship from Australia, but grille foam can be found at Cliff Electronics http://www.cliff.com.au/
Look under "speaker box parts"
They're also a great cheap source of anything Neutrik in the antipodes.

Unless you can find a place like that in NZ...
Built:
DR 250: x 2 (melded array) with March 2012 plans. 2 more under way with CD horn
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 3 with melded array.
Bunter's Audio and Lighting "like"s would be most appreciated...

Grey Owl
Posts: 115
Joined: Fri Mar 20, 2009 10:38 pm
Location: Mairangi Bay, New Zealand, User 1603

Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#5 Post by Grey Owl » Mon Sep 16, 2019 4:01 pm

Hi Bill and Bruce.
APT: 80 noted thanks Bill.
Yup Bruce, just checked the ply. My faulty data - it's actually 12mm (half an inch) with 9 ply's.
Cheers
You have two ears and one mouth. Use them in the same ratio!!

Grey Owl
Posts: 115
Joined: Fri Mar 20, 2009 10:38 pm
Location: Mairangi Bay, New Zealand, User 1603

Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#6 Post by Grey Owl » Mon Sep 16, 2019 4:49 pm

Thanks Grant.
Very helpful thoughts thanks.
Ps: I've got cousins in Barcaldine; not far from yours.
Cheers
You have two ears and one mouth. Use them in the same ratio!!

Grant Bunter
Posts: 6173
Joined: Mon Nov 28, 2011 11:12 am
Location: Ilfracombe Queensland Australia
Contact:

Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#7 Post by Grant Bunter » Tue Sep 17, 2019 3:59 am

Grey Owl wrote:
Mon Sep 16, 2019 4:49 pm
Thanks Grant.
Very helpful thoughts thanks.
Ps: I've got cousins in Barcaldine; not far from yours.
Cheers
No worries at all.
Barcaldine is quite close, only 85k's away.

The nearest Bunnings is 7.5 hrs away.

Let us know if we can help with anything else...
Built:
DR 250: x 2 (melded array) with March 2012 plans. 2 more under way with CD horn
T39's: 4 x 20" BP102 , 2 x 28" 3012lf.
WH8: x 3 with melded array.
Bunter's Audio and Lighting "like"s would be most appreciated...

Grey Owl
Posts: 115
Joined: Fri Mar 20, 2009 10:38 pm
Location: Mairangi Bay, New Zealand, User 1603

NEW BUILD - Omni 15 Tall Boy down here in New Zealand

#8 Post by Grey Owl » Tue Jan 14, 2020 1:58 am

Happy New Year all,
My box of bits n bobs from Leland has arrived down here.
Will check out contents to see all arrved well - a tad excited I must say!!
Cheers
:hyper: :hyper: :noob: :noob:
You have two ears and one mouth. Use them in the same ratio!!

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Tom Smit
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Location: Sarnia, Ont. Canada

Re: NEW BUILD - Omni 15 Tall Boy in New Zealnd

#9 Post by Tom Smit » Wed Jan 15, 2020 11:35 pm

Have fun!
TomS

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