Near-wall design - 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 16th February 2009, 04:14 AM   #1
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
Default Near-wall design

I've been playing around with ideas for a shallow type of speaker cabinet, a bit like the old Boston Acoustics A150, designed to sit right up against the wall.
The pic below shows the idea I have in mind, with 45 degree chamfers from the front baffle to the wall. Depth would be about 200mm (8 inches).

I'm not sure what kind of diffraction signature this will create, and whether it will mitigate the reflections off the wall.
Does anybody have a comment or opinion on this?

Click the image to open in full size.
  Reply With Quote
Old 16th February 2009, 04:43 AM   #2
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
I've actually built a speaker like that...

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 16th February 2009, 05:18 AM   #3
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
Care to give details? What was your impression of them?
  Reply With Quote
Old 16th February 2009, 05:40 AM   #4
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by David Gatti
Care to give details? What was your impression of them?
It was supposed to be an isobarik B110/T27 MTM... never finished them. The shape is a very good idea... at least i thot so

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th February 2009, 01:17 AM   #5
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
Here's a more practical version.

Click the image to open in full size.
  Reply With Quote
Old 17th February 2009, 01:49 AM   #6
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
What kind of drivers were you thinking of?

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th February 2009, 02:21 AM   #7
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
At this stage -:

Tweeter - Scanspeak illuminator D3004/6620-01
Link

Midrange - Audiotechnology C-quenze 15h5206sdk
Link

Woofer - Audiotechnology Flex 12" custom design with 4" voicecoil
Similar to this

or a Dynaudio MW190
Link

Crossovers around 200 Hz and 3.5kHz.
  Reply With Quote
Old 17th February 2009, 04:51 AM   #8
56oval is offline 56oval  Australia
diyAudio Member
 
Join Date: Jun 2006
Location: Werr,i,bee sth ,Vic ,Australia
Hi Dave

our cabinet is similar to what I'm going to build .Mine will be on small stands with the bass drivers in seperate cabs .
Click the image to open in full size.
I'm going to try a 70 degree angle .
Cheers
  Reply With Quote
Old 17th February 2009, 05:29 AM   #9
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
Quote:
Originally posted by David Gatti
Scanspeak, Audiotechnology, Audiotechnology, Dynaudio
Full-on Danish system... gonna get Jensen caps & coils?

dave
__________________
community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi
p10-hifi forum here at diyA
  Reply With Quote
Old 17th February 2009, 07:15 AM   #10
diyAudio Member
 
David Gatti's Avatar
 
Join Date: Mar 2004
Location: Melbourne, Australia
Nice to see 56oval. What's the dimensions & drivers you're using?
Why did you choose 70 degrees? A lower angle would help with diffraction.

Planet10, I don't know if I'll have any cash left, but Jenzens would be nice. Maybe just on the tweeter.
  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
CCS FR125S Options for a wall mounted design? BL21DE3 Full Range 13 25th March 2006 10:42 AM
in-wall speaker design exipnos Multi-Way 7 14th November 2005 12:56 PM


New To Site? Need Help?

All times are GMT. The time now is 05:47 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