WR125S with extemis in a 1.5 or 2.5 way ? - 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 20th December 2004, 08:35 AM   #1
diyAudio Member
 
Join Date: Nov 2004
Location: Seattle
Default WR125S with extemis in a 1.5 or 2.5 way ?

Since I am in Seattle, I thought I would support the local economy and try these Adire designed drivers for my next project. I was thinking about running the WR125S in a 1.5 configuration with the extemis (if they ever arrive). No filter on the WR125S and just a single coil on the extemis. My plan was to put the WR125S in a short heavily stuffed T-line (just to kill the backwave and damp the resonance) and the extremis in a full t-line or the hybrid type of vented t-line that I am just starting to read about at Martin King's site.

Later I would bring in a tweeter around 6k cause I am sure the beaming of hi frequencies will detract from the use of these speakers for the front pair of my home theater. I will probablu buy a third WR125S for a center channel. Not sure if I will try to add a woofer and tweeter to it or not. I can always run the center in small mode. My receiver has an equalizer for the center channel and I might be able to get by using it to make up the baffle step and extend the very high end alittle.

Any help particularly from you Adire guys would be appreciated!!


"The gate is back open in January"
  Reply With Quote
Old 20th December 2004, 03:06 PM   #2
synergy is offline synergy  United Kingdom
diyAudio Member
 
Join Date: Jan 2004
Location: here
reckon we're thinking along the same lines here

just this morning i've been playing around with exactly that

i've roughly got

mains:-

tweeter = ? not got this far yet
mid = WR125S - 4.5L sealed high passed around 100Hz run full range
woofer = Extremis 6 - 30L MLTL tuned to about 30Hz

center:-

as mid above

rear surrounds:-

WR125S - 7L vented tuned to 55Hz run full range

subs:-

2 x TangBand W8-740C in 6th order Band Pass should get me F3's of 20Hz and 70Hz

i really like the idea of the coherency the WR125S will give to the system being able to use it full range as well as for the mid duties opens up lots of possibilities

dave
  Reply With Quote
Old 20th December 2004, 05:31 PM   #3
diyAudio Member
 
Join Date: Nov 2004
Location: Seattle
Default I think a tweeter will be necessary

I think a tweeter will definitely be needed for the L/R fronts, otherwise the off axis response will suffer. It may be necessary to add the tweeter to the surrounds as well. I like to use surrounds that fire at the ceiling for a more indirect effect. Might not need the tweeter for the surrounds if you aim them directly at your seating.

The center might be different, I think dialog is improved by a single full range. But with just a single 4.5" you cannot run it as a large speaker.
I still believe that the center will need the .5 woofer if you are planning on running configured as large. Remember, in movie soundtracks almost 85% of the soundtrack comes from the center channel. I keep trying to come up with a way to add the .5 woofer(s) to the center without having to add a pair of them on either side of the WR125s.

I have thought about adding a single internal woofer configured as a bandpass and using a slot thru the front baffle as the output, to add to the lowrange. This would make the cabinet deeper, but not necessarily any wider. I am not sure if the diiference in phase would make things better or worse
Attached Images
File Type: jpg center with bandpass woofer.jpg (70.8 KB, 320 views)
  Reply With Quote
Old 21st December 2004, 12:22 AM   #4
diyAudio Member
 
Join Date: Aug 2002
Location: Seattle or Shanghai
The Extremis 6s are somewhere between the factory and the distribution point... Literally any day now for deliveries to start rolling...

As far as the designs go, we're planning an MT (actually have it finished - come on by and take a listen), an MMT (coming soon), and then an LCR (right thereafter).

The LCR will be like our LCC - a pair of Extremis 6 woofers flanking an MT combination of the WR125S and a tweeter. Use it for center as well as left/right applications.

Dan Wiggins
Adire Audio
  Reply With Quote
Old 21st December 2004, 04:52 PM   #5
sbolin is offline sbolin  Thailand
diyAudio Member
 
Join Date: Sep 2004
Location: Bangkok
Quote:
Originally posted by DanWiggins
The Extremis 6s are somewhere between the factory and the distribution point... Literally any day now for deliveries to start rolling...

As far as the designs go, we're planning an MT (actually have it finished - come on by and take a listen), an MMT (coming soon), and then an LCR (right thereafter).

The LCR will be like our LCC - a pair of Extremis 6 woofers flanking an MT combination of the WR125S and a tweeter. Use it for center as well as left/right applications.

Dan Wiggins
Adire Audio
Hey, good news! Can't wait to get mine. I better get cracking on finishing the designs...
  Reply With Quote
Old 22nd December 2004, 02:12 AM   #6
diyAudio Member
 
paulspencer's Avatar
 
Join Date: Sep 2003
Location: Melbourne, Australia
ok I'm getting lost in all the lingo here!!!
a little elboration please!

TM tweeter + mid ok

but LCR and LCC? huh?
  Reply With Quote
Old 22nd December 2004, 02:43 AM   #7
Grahamt is offline Grahamt  Canada
diyAudio Member
 
Grahamt's Avatar
 
Join Date: Mar 2004
Location: U of Waterloo
LCC = large center channel

LCR = left center right. A speaker that can be placed horizontally or vertically, usually an MTM. In this case a WMTW.
  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
looking for FRD and ZMA files for CSS WR125S? Matthew P. Multi-Way 0 31st October 2007 11:55 PM
FR/WR125S in MAPD? bogoes Full Range 5 28th September 2005 09:56 PM
Extemis - Fact of Fiction sbolin Multi-Way 15 23rd January 2005 03:29 PM
Has anyone treated a CSS WR125S like a Jordan? AllCaster Full Range 10 5th January 2005 09:27 PM
FS: CSS WR125s bhg41088 Swap Meet 5 17th December 2004 05:14 PM


New To Site? Need Help?

All times are GMT. The time now is 11:59 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