Search
 
 

Display results as :
 


Rechercher Advanced Search

Subscribe to our Feed
addtomyyahoo4 Subscribe with BloglinesAdd to netvibes
Add to Google

10" DIY OB speaker

Go down

10" DIY OB speaker

Post by atoz on Thu Aug 28, 2014 3:26 pm

My hands started to feel itchy after i got hold of a pair of big 10" full ranger.
Having chatted with a speaker guru and a quick glance at the DIY project pictures posted in the web, decided to explore the long wanted OB project myself.


Last edited by atoz on Thu Aug 28, 2014 10:38 pm; edited 1 time in total
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Aug 28, 2014 4:04 pm


Drivers are from the Magna Acoustica speakers, according to source they were modified (coated with special resin) CH250 supplied by a French raw speaker manufacturer Ciare.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Aug 28, 2014 4:34 pm


Paper Specifications are pretty impressive for a 10 incher with a claimed frequency range from 60-18khz and capable to handle 150 watts. Efficiency is high at 96db meaning small tube or monster solid state amps can also be paired with.
Sounds interesting enough! lets play.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by sph on Thu Aug 28, 2014 8:20 pm

Put up some photos as you go along building it.

Cheers.

sph
Frequent Contributor
Frequent Contributor

Number of posts : 326
Age : 59
Location : PJ
Registration date : 2009-03-04

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Tue Sep 02, 2014 5:54 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2028.jpg


The cutting begins ------------ noisy and dusty work
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Tue Sep 02, 2014 5:57 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2029.jpg


1" thick solid Sungkai wood (Peronema canescens) hardwood.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Tue Sep 02, 2014 6:00 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2030.jpg


more cuttings
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Sep 04, 2014 11:58 am


To minimized the front and back waves phase cancellation in narrow baffle, i install folded wings at the sides.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Sep 04, 2014 5:21 pm


The 2 wings are not equal in widths, 1 side is 4" and another is 5" in mirror image. The difference allows me to play with positioning and toe-in or swap left right for tuning.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Sep 04, 2014 5:35 pm


Cutting thru the solid 1" thick wood is no easy job.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Sep 04, 2014 5:44 pm


The edges are rabbeted to avoid sharp corners.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Thu Sep 04, 2014 5:47 pm


Standing 5'6" high and 18" wide.
1 more hole to cut.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by vt4c on Thu Sep 04, 2014 8:41 pm

Very skillful:)
avatar
vt4c
Frequent Contributor
Frequent Contributor

Number of posts : 134
Age : 49
Location : M'sia
Registration date : 2009-05-09

Back to top Go down

Re: 10" DIY OB speaker

Post by bal on Thu Sep 04, 2014 9:16 pm

This is precisely what we need more of in our fine forum. Bravo Atoz.  One up for you. 
Bal.

bal
Moderator
Moderator

Number of posts : 1061
Age : 54
Location : Bangsar, medan damansara area
Registration date : 2009-03-06

Character sheet
Source(s): CEC T2, Oppo blu ray, mac mini running Audirvana thro Teac ud 501 dac
Amplification: conrad Johnson, Oddessy Khartago mono b
Speakers: maggie 1.7

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Fri Sep 05, 2014 4:16 pm

Thank bros Very Happy
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Fri Sep 05, 2014 5:50 pm


Grooved to breakup the boring big wide panels.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Fri Sep 05, 2014 5:54 pm

avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by phsf98 on Thu Oct 02, 2014 9:02 am

Hi Atoz,

Very nice wood working! Have u mount up the driver and listen to it yet? Care to share where did you get the solid wood from?

regards
SF

phsf98
New Member
New Member

Number of posts : 6
Age : 39
Location : JB
Registration date : 2009-09-09

Character sheet
Source(s): Mytek DAC
Amplification: DIY EL84 SE amp, DIY 300B amp
Speakers: DIY coral flat8 BR

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:39 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2047.jpg


Have the base installed.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:46 pm

phsf98 wrote:Hi Atoz,

Very nice wood working! Have u mount up the driver and listen to it yet? Care to share where did you get the solid wood from?

regards
SF

Drivers mounted, undergoing tuning in the listening room at the moment. Will update later.

I bought the solid wood piece from a furniture factory.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:48 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2048.jpg

avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:49 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2050.jpg

avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:53 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2051.jpg


The back side.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:55 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2052.jpg


Drivers finally mounted in place, can't wait to wire them to test!
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:57 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2053.jpg

avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 4:59 pm

http://i39.servimg.com/u/f39/14/81/45/19/img_2054.jpg

avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Sat Oct 04, 2014 5:03 pm

Listening first impression?
Enough to put a smile on my face Very Happy immediately.

To be continue..........
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Wed Oct 08, 2014 12:29 pm

Initial listening session summarized as below:

The first thing that struck me was the enormous soundstage they throw out extending at least 3' to the left and to the right side of the speakers. 
It has also a reasonable top to bottom frequency extension to be considered a real fullrange speakers.
  
However the soundstage lacks depth and the overall tonality leans toward to the bright side due to the driver's frequency bump in upper midrange as expected. I know this can be corrected easily using damping materials or perhaps a simple notch filter in the line.

I am very happy with the initial performance and feels rewarding enough to further improve them.

Associated equipments in the initial testing:
Pioneer CDP
Yaqin tube buffer
Audiolab intergrated
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by chinlai on Wed Oct 08, 2014 1:44 pm

atoz: where did you source the wood from?

chinlai
Club Member
Club Member

Number of posts : 32
Age : 44
Location : KL, Malaysia
Registration date : 2012-07-31

Character sheet
Source(s): Denon
Amplification: Yamaha
Speakers: Monitor Audio

Back to top Go down

Re: 10" DIY OB speaker

Post by atoz on Wed Oct 08, 2014 2:40 pm

Answer in 1 of the post above.
avatar
atoz
Frequent Contributor
Frequent Contributor

Number of posts : 345
Age : 42
Location : Selangor
Registration date : 2010-01-30

Character sheet
Source(s):
Amplification:
Speakers:

Back to top Go down

Re: 10" DIY OB speaker

Post by chinlai on Wed Oct 08, 2014 2:42 pm

which furniture factory bro?

chinlai
Club Member
Club Member

Number of posts : 32
Age : 44
Location : KL, Malaysia
Registration date : 2012-07-31

Character sheet
Source(s): Denon
Amplification: Yamaha
Speakers: Monitor Audio

Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum