Dual horizontal EL70 + tweeter? - 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 7th July 2011, 06:14 AM   #1
diyAudio Member
 
Join Date: Nov 2003
Location: Austin, TX
Default Dual horizontal EL70 + tweeter?

Guys,

The EL70 was recently recommended to me by the forum admin for a situation where I need lots of vertical and horizontal response due to extremely poor mounting location of the speakers (below ear level and off to the side).

I've hesitated because I have no experience with full-range speakers. But, because of my physical mounting limitations (height = less than 10" max) and off-axis response needs and dynamic capabilty, I keep coming back to the EL70's.

The two things that make me hesitate are lack of tweeter and not being sure about their dynamic capability for this large room.

So tell me, is it possible to succesfully pair two EL70's per side, horizontally mounted, with an inexpensive tweeter that also has great off-axis capabilty? If so, what tweeter would be suggested?
Would this baffle layout be the way to go for this two way? And is 10k hz the recommended crossover for this setup?

This is for pop music & home theater.

EL70's:
http://www.creativesound.ca/details.php?model=EL70
Attached Images
File Type: jpg Untitled2.jpg (23.4 KB, 207 views)
  Reply With Quote
Old 5th January 2012, 07:30 PM   #2
jimbro is offline jimbro  United States
diyAudio Member
 
Join Date: Nov 2010
Location: somewhere in Texas
While searching around for info on horizontal drivers I found this unanswered thread. If you're still interested CSS has their ert-26 tweeters for half price at $18pr! I'm interested in hearing opinions on horizontal drivers myself like two maeshows side by side.
  Reply With Quote
Old 5th January 2012, 07:59 PM   #3
diyAudio Member
 
Join Date: Aug 2009
Location: North Texas, USA
The side by side arrangment is typically considered to provide some unfortunate comb filtering effects. Would not be excellent off axis.

(Yes I am aware that many commercial center channels are horizontal MTM designs. Doesn't change the acoustics)
__________________
I was so much older then, I'm younger than that now.
  Reply With Quote
Old 5th January 2012, 08:49 PM   #4
diyAudio Member
 
Join Date: Nov 2003
Location: Austin, TX
Thanks for the heads up, Jimbro.
I was really impressed with everything I read about this company's speakers.
I ended up going a different direction though, since the priority in this case was absolute SPL due to the room being so huge, vs. absolute sound quality.

I'd still like to try these speakers someday for my self though.
  Reply With Quote
Old 5th January 2012, 08:50 PM   #5
diyAudio Member
 
Join Date: Nov 2003
Location: Austin, TX
Quote:
Originally Posted by fastbike1 View Post
The side by side arrangment is typically considered to provide some unfortunate comb filtering effects. Would not be excellent off axis.
This is what I read about also.
  Reply With Quote
Old 5th January 2012, 08:57 PM   #6
zman01 is online now zman01  Bangladesh
diyAudio Member
 
Join Date: Feb 2011
Location: Dhaka
Eddie,

What about a bigger driver like Alp 10.2? Being aluminum cone probably dispersion will be better than the EL-70. Planet10 Classic Golden Ratio Ken boxes for A10.2 are around 11 inches wide - maybe Dave can help you adjust the dimensions a bit keeping volume and tuning same. If you still need a tweeter, you can add one later?
  Reply With Quote
Old 5th January 2012, 08:59 PM   #7
diyAudio Member
 
tuxedocivic's Avatar
 
Join Date: Jan 2011
Location: Ladysmith, BC
I think it's a bad idea

This is my favourite driver right now. Really hard to beat. But that arrangement playing up to 10khz and REQUIRED to sit off axis, is going to put a huge null in the upper frequencies somewhere (depends on geometry of listening position). Normally I say this driver has great high frequency extention, but in this case, I'd say it doesn't because you'll be off axis. They really do lose their extention when I sit up out of my LP or walk around the room.

As for dynamics... we just dealt with this on another thread with Rullknuf (spelling?). They're a full range driver. Something has to give. I think they're dynamic within their limits. But the limit can be found easily. I've listened to mine crossed to a sub at 80hz and my receiver set to -15db, and I can definitely hear things bunching up. Not crossed to a sub they really struggle. Mind you, that's only 1 EL70 per side, not 2.

Like I say, I love this driver, but you're asking it to do each of it's (only) weaknesses.

On the other hand, it does seem like you have a tough build there. Not sure what I'd suggest. You have 10" high, and how wide??? You could possibly fit a couple 8" crossed to a single 90db+ sensitive Foxtex or something. XO so low, the combing won't be a problem. Sensitivity so high, dynamics won't be a problem. Enclosure volume???
  Reply With Quote
Old 5th January 2012, 09:00 PM   #8
diyAudio Member
 
tuxedocivic's Avatar
 
Join Date: Jan 2011
Location: Ladysmith, BC
Ahh, posted while you posted. Old thread
  Reply With Quote
Old 5th January 2012, 09:36 PM   #9
chrisb is offline chrisb  Canada
diyAudio Member
 
Join Date: Aug 2002
Location: victoria BC
Quote:
Originally Posted by CZ Eddie View Post
Thanks for the heads up, Jimbro.
I was really impressed with everything I read about this company's speakers.
I ended up going a different direction though, since the priority in this case was absolute SPL due to the room being so huge, vs. absolute sound quality.

I'd still like to try these speakers someday for my self though.

out of curiosity, what did you land on for this application?

FWIW, as others have noted the EL70, EL166 and ERT26 are all excellent performers within their varying limits, but may not be available forever. Bob has some new drivers developed for him that don't exactly replace these ( ie. not "Full-Range" per se) - CSS the Next Generation - to be available sometime within the next month or so, I believe. VWR126X - wideband midwoofer, and LD25X dome tweeter - both XBL motor technology.

For anyone else sitting on the fence, the current special on the ERT26 at $18/pr is silly good price on a nice little tweeter, and there's a 2 way kit with the EL166/ERT26 XO, ports etc - everything but the box and stuffing - for $126 - rather a bargain.
__________________
now on sabbatical
  Reply With Quote
Old 5th January 2012, 09:43 PM   #10
diyAudio Member
 
Join Date: Nov 2003
Location: Austin, TX
Sorry guys

The finished project is posted here:

Which 8" full range or coaxial for $150/less?
  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
El70 in Pensil? type Full Range 12 11th September 2010 08:41 PM
Dual tweeter center channel? Grahamt Multi-Way 2 3rd April 2005 07:25 PM
My TL speakers with dual Vifa P17 and Heil tweeter Andypairo Multi-Way 42 14th May 2004 09:04 AM
Fs: Vifa Xt25tg30-04 Dual Concentric Dome Tweeter bbaker6212 Swap Meet 2 25th September 2002 10:03 PM
opinions on the new VIFA dual conc. tweeter XT25 grataku Multi-Way 25 5th June 2002 07:10 AM


New To Site? Need Help?

All times are GMT. The time now is 01:05 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