Ikea spherical speakers, first build done. - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 21st January 2010, 02:31 PM   #1
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Default Ikea spherical speakers, first build done.

I thought I should post pictures of my first build.

Project was inspired by Cabasse and the curves employed in B&W 800 series, although on a much smaller budget. Had the idea to use bowls, Ikea had the wooden Blanda which seemed perfect. After scouring the net, found several others using these, although none using the 28cm versions. Design is an active 2 way design.

Click the image to open in full size.

First completed photo (no tweeter), initially using Zero class T amps.

Click the image to open in full size.

Current incarnation, using rotel 6 channel amp, channel for tweeter and mid, bridged for 15" sub, experimenting with solid oak sleeper stands and granite plinths.

Click the image to open in full size.

Tweeters rather delicate positioning on top, seems to be fine without an enclosure, however I am experimenting with casting tapering tubes using champagne flutes.

The Sound: To my humble ears they sound rather good, haven't obtained a microphone to do testing. Definitely better than my Mission V63, which have an rrp of over 500. The 'no baffle' 15" add good low level sound reinforcement, as they don't go terrifically low or have very much bass

The drivers are Peerless M16GH (link below to drivers and excellent seller from eBay) Peerless & CO M16GH/4 Mid Woofers X 2 New/OldStock. on eBay (end time 25-Jan-10 10:15:24 GMT)


The tweeters are also Peerless metal domes, model unknown.

Currently crossed at 15" Sub 20-150Hz, Mid 50Hz-3Khz, tweeter 3Khz-20Khz

The sphere's come in at around 8L, (9.1L before cuts and driver displacement) One has eggfoam stuffing the other is naked will aquire some different materials for testing when I have a good mic.

They need another sand down, better integration with the stands and experiments with internal wadding, and the new tweeter housing, when time allows.

Last edited by Studio Au; 21st January 2010 at 02:47 PM.
  Reply With Quote
Old 21st January 2010, 02:34 PM   #2
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Build Process:

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Last edited by Studio Au; 21st January 2010 at 02:49 PM.
  Reply With Quote
Old 21st January 2010, 02:39 PM   #3
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Build process drivers and testing:

Click the image to open in full size.
Click the image to open in full size.
Testing drivers using old Eltax crossover.

Click the image to open in full size.
Click the image to open in full size.
Sanding down, a pain staking process, still not 100%.

Click the image to open in full size.
Click the image to open in full size.
The weight of the driver meant the stand had to face the other way.

Click the image to open in full size.
4mm Banana gold plated binding posts

Click the image to open in full size.
Experiments using small aluminum Blanda bowls as omni directional tweeter.

Click the image to open in full size.
Click the image to open in full size.

Last edited by Studio Au; 21st January 2010 at 02:52 PM.
  Reply With Quote
Old 21st January 2010, 03:10 PM   #4
SY is offline SY  United States
diyAudio Moderator
 
SY's Avatar
 
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 1
Terrific work! I am inspired to try this...
__________________
And while they may not be as strong as apes, don't lock eyes with 'em, don't do it. Puts 'em on edge. They might go into berzerker mode; come at you like a whirling dervish, all fists and elbows.
  Reply With Quote
Old 21st January 2010, 03:17 PM   #5
Colin is offline Colin  United Kingdom
diyAudio Member
 
Join Date: Aug 2003
Location: UK
Brilliant thinking outside the box. Nice to see the build process too.
  Reply With Quote
Old 21st January 2010, 03:18 PM   #6
diyAudio Member
 
Join Date: Sep 2008
Location: Bristol
Cost:

Bowls 12ea, = 48
Mids x2, = 35
tweet x2 = 22
Binding posts x4 = 5
Screws, glue sand paper = 5

115 total
  Reply With Quote
Old 21st January 2010, 03:20 PM   #7
Key is offline Key  United States
diyAudio Member
 
Join Date: Jan 2009
Very cool. Great idea using the bowls. Looks like you only need a saw, drill, and soldering iron - my kind of project.

Last edited by Key; 21st January 2010 at 03:29 PM.
  Reply With Quote
Old 21st January 2010, 03:36 PM   #8
diyAudio Member
 
barackuda's Avatar
 
Join Date: Oct 2006
Now imagine to put some fullrange driver inside i.e. Jordan, Fostex and such....
Great system for the bedroom !!!!!!!!!!!!!!
Might build one to please the wife

Danny
  Reply With Quote
Old 21st January 2010, 03:37 PM   #9
diyAudio Member
 
Join Date: May 2008
how do they sound compared to the box they where in?
  Reply With Quote
Old 21st January 2010, 03:57 PM   #10
Pano is offline Pano  United States
diyAudio Moderator
 
Pano's Avatar
 
Join Date: Oct 2004
Location: Kona, Hawaii
Blog Entries: 4
Brilliant. Such nice work. And with a hand saw, too!
__________________
Take the Speaker Voltage Test!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Spherical speakers and all that jazz cirrus18 Multi-Way 59 6th March 2009 05:31 PM
Ikea project ceebmoj Full Range 7 5th June 2008 03:14 AM
Spherical Speakers Ironhead Full Range 15 22nd December 2007 04:42 PM
hay ikea boy :) karma Everything Else 7 4th August 2003 01:02 AM


New To Site? Need Help?

All times are GMT. The time now is 05:08 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2