Rear firing "ambience" supertweeter? - diyAudio
Go Back   Home > Forums > Loudspeakers > Full Range

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 24th May 2009, 05:48 AM   #1
diyAudio Member
 
Join Date: Apr 2009
Default Rear firing "ambience" supertweeter?

Anyone have experience with a rear firing vs. forward facing supertweeter?
  Reply With Quote
Old 24th May 2009, 07:59 AM   #2
diyAudio Member
 
Geek's Avatar
 
Join Date: Sep 2004
Hi,

I played with that many years ago when Radio Shack offered that nasty little "super tweeter".

It wrecks imaging and the amount of HF sound you get depends totally on what your walls are... if drywall, fuggetabbouddit. If melamine like some manufactured home walls, it can do real interesting things... none of it good IMO.

Cheers!
  Reply With Quote
Old 24th May 2009, 09:24 AM   #3
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
I wouldn't say they're useless in all cases, but for most monopoles they wouldn't be necessary or even desirable.
  Reply With Quote
Old 24th May 2009, 06:18 PM   #4
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
You could try upwards omni
But wont work with ribbon though
__________________
sometimes we know very little, and sometimes we know too much
  Reply With Quote
Old 24th May 2009, 07:26 PM   #5
diyAudio Member
 
Join Date: Apr 2009
Quote:
You could try upwards omni But wont work with ribbon though
Will the ribbon sag?

Actually I was thinking about that. Although the design I'm thinking of doesn't belong in this section. I was thinking of putting a Zingali style waveguide on the modern variant of the Morel MDT-33, then equalized back to flat to reduce excursion for a low crossover point. I was thinking of mating a supertweeter for north of 10khz. At first I was thinking rear mounted but I saw another project where someone used a cheap version of a Heil drivers facing down on the pointed part of one of those giant glass crystal diamonds for 360 degree sound dispersion. I was contemplating the same thing in reverse orientation with an LCY130 ribbon tweeter. The design I'm thinking is based on the Samadi Ichiban/FJ OM configuration but with the drivers and a similar cabinet to:

http://www.troelsgravesen.dk/JA8008.htm

But maybe with the added 360 degree supertweeter.
  Reply With Quote
Old 24th May 2009, 07:48 PM   #6
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Yes Im sure ribbon would sag used as omni, or would be flawed by gravity

Im sure Vifa XT19 would work fine
__________________
sometimes we know very little, and sometimes we know too much
  Reply With Quote
Old 24th May 2009, 08:00 PM   #7
diyAudio Member
 
Join Date: Apr 2009
It's worth trying, the xt19 is not expensive. Although I am getting ahead of myself worrying about a supertweeter that's not really needed when I haven't finished the rest of the design. I like to think of all possibilities though. Also I just think have a giant crystal diamond on my speaker would look interesting and I could go on about the "crystal clear highs..." lol. I do like the idea of an omni dispersion pattern around the frequency most tweeter are becoming directional and falling off.

For fun someone should try one of the huge 8" diameter crystal diamond above an upward facing Lowther or such.

I can see someone putting that on the market and calling it a "crystal resonator" or something and selling it for some outrageous amount.
  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
Adding a rear Ambience tweeter Jamesuk1 Full Range 4 23rd October 2008 05:55 PM
Up-firing 15" Opus Pocus Subwoofers 0 15th April 2008 12:31 AM
Rear mounted ambience drivers, opinions? ptwining Multi-Way 5 20th December 2007 04:41 PM
Which 6"/6.5" sub for rear doors? Shaun Car Audio 15 6th May 2007 04:28 PM
How long can the rear wave of a dipole sub be "diverted" before... 454Casull Subwoofers 0 31st May 2006 03:15 AM


New To Site? Need Help?

All times are GMT. The time now is 03:01 PM.


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