Author Topic: OB: my plankie H8-15two  (Read 1896 times)

Offline Chingy

OB: my plankie H8-15two
« on: April 20, 2018, 06:45:07 PM »
So the idea to build speakers finally started.
Plan is simple 8inch with 2x15 each side, 540mm wide baffle. This can be solid wood, perspex or supawood

Idea came from
https://www.google.co.za/search?q=trio15+open+baffle&client=ms-android-samsung-ga-rev1&prmd=ivsn&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjmyKzUoMnaAhWZHsAKHURjBwIQ_AUIESgB&biw=360&bih=612#imgrc=f814yNi_yZYXLM:

First step was the frame, options are endless, tubing, batterns 2x4, i did 5mm aluminium 5083 H111
Because we have lasers and we can cut it.
Drawing frame for laser cutting



Base and side panel layout,to the right, the baffles
« Last Edit: April 20, 2018, 06:47:18 PM by Chingy »
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #1 on: April 20, 2018, 06:53:10 PM »
This is how the fame bolts together, two m8 bolts and nuts per side. Crossover can also be mounted on the base
Very easy to swap baffles



You can have the full range on top or in the middle .
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #2 on: April 20, 2018, 07:01:08 PM »
Im starting with supawood, 18mm , also getting  20mm clear perspex baffle cut, with 3mm aluminum black face plates,  these will be waterjet cut.
Love this look
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #3 on: April 20, 2018, 07:03:00 PM »
As you can see,driver options are endless,  just swap out the middle to fit any speaker.
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline SeanS

Re: OB: my plankie H8-15two
« Reply #4 on: April 20, 2018, 08:50:29 PM »
 :thumbs: looks stunning.. would love to see these in person

Offline Wolla

  • Trade Count: (+73)
  • AVForums Super Veteran
  • ****
  • Posts: 778
  • Total likes: 1
  • The wife is always right!
Re: OB: my plankie H8-15two
« Reply #5 on: April 21, 2018, 01:25:15 AM »
Aha, another OB convert Craig? Looking good and good luck - hope it works out perfectly.
St Helena Bay
<<< KIT >>>
DIY OB Boombox (TPA3116D2 amps)
PC: Acer Notebook > Audioquest Dragonfly Red > HK GLA55
HP: Audeze iSine 10, LG V20 & V30, Philips SHP-895
Casual: Apple HiFi, Music pillow, Denon Heos 7

Offline King_Julian_S

Re: OB: my plankie H8-15two
« Reply #6 on: April 21, 2018, 10:34:54 AM »
Canít you make me one also ?
I have just the drivers

will follow
Non audiophile music lover...

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #7 on: April 21, 2018, 10:36:02 AM »
Canít you make me one also ?
I have just the drivers

will follow
The frame, yes i can, why not
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline King_Julian_S

Re: OB: my plankie H8-15two
« Reply #8 on: April 21, 2018, 10:48:16 AM »
will pm you soon as I can get my ducks in a row
Non audiophile music lover...

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #9 on: April 21, 2018, 12:55:30 PM »
I've got two keen on a frame.
If we can get three more, i can do a a good deal for 5 sets.
Also if its okay,  can add black powder coating also.
Cost can we shared.

VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline King_Julian_S

Re: OB: my plankie H8-15two
« Reply #10 on: April 21, 2018, 01:02:36 PM »
Can u calculate costs or approx before I can commit pls sire
Non audiophile music lover...

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #11 on: April 21, 2018, 01:11:05 PM »
Call it 3k a set. Including bolts and nuts. Shipping included.
All back powder coating.
I'll cover laser and bending cost.
How thats for a forum special
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline grammadoelas

  • Trade Count: (+3)
  • AVForums Veteran
  • ***
  • Posts: 125
  • Total likes: 0
  • Action is eloquence ē What is past is prologue
Re: OB: my plankie H8-15two
« Reply #12 on: April 21, 2018, 04:04:48 PM »
If you could, please share the brand, the model number and the landed cost of each driver used in this build, too ? Sources ?

Thank you.

Offline Chingy

Re: OB: my plankie H8-15two
« Reply #13 on: April 21, 2018, 04:24:05 PM »
Hybrid 15h200 x4 , cost was under R380 per driver
From bc electronics
« Last Edit: April 21, 2018, 04:27:23 PM by Chingy »
VA BW Pre, Tannoy Chevoits,Linn Kann, on Linn Stands,
Power trio (guitar, bass, and drums)

Offline vinyljan

Re: OB: my plankie H8-15two
« Reply #14 on: April 22, 2018, 08:04:32 AM »

You can have the full range on top or in the middle .


Think this build is a great idea; versatility (modular design), quality of material/workmanship, cost etc.

Total height about 1300mm :thinking:.  How far are the uprights apart and total width of base please?  What would be an estimate for the different baffle materials?
In a maximum bank turn in a normal category airplane, like a typical Cessna, everything is fine until you turn across your own wake