Matching center to Fronts to.... - 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 26th March 2004, 12:53 AM   #1
diyAudio Member
 
Join Date: Dec 2003
Location: Detroit Area
Default Matching center to Fronts to....

How import, and if so, what factors do I need to be aware of when selecting a center channel to build, to match my front pair of speakers?

Same brand? Same speaker? Same caracteristics?

Then, how important is the matching of the rear channels?
  Reply With Quote
Old 26th March 2004, 02:21 AM   #2
Ken L is offline Ken L  United States
diyAudio Member
 
Join Date: Sep 2002
Location: deep south
Default what is your main interest and goals?

IMHO, The rears just don't have very much information in them as regards to HT so the match is not that critical in regards to HT

If multichannel audio is an interest, they all five should match

The front center match question depends on whether 2 channel or HT is your main interest.

If music is your main interest - then if you go all out that means large and usually expensive speakers for L-R.

Impractical for size and budget reasons to have five large and expensive speakers with two subs, matching amps, etc - for most people anyhow.

so it mainly depends on your priorities.

Regards

Ken L
__________________
No longer powered by Linux - not enough apps and cross platform integration - but maybe one day
  Reply With Quote
Old 12th April 2004, 01:24 AM   #3
diyAudio Member
 
Join Date: Dec 2003
Location: Detroit Area
My main interest is HT.

In reading the speaker cookbook, VD states that matching is critical. But he throws a new wrinkle into the process. I can't just make a MTM like my fronts, and lay it on it's side. How many people use MTM's horizontally vs. vertically? WIll I notice a big difference if I do?
__________________
_________________________________
Could this subject be any more confusing?
  Reply With Quote
Old 12th April 2004, 01:57 AM   #4
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
MTMs lying on the side have terrible horizontal dispersion.

Somebody recommended a

....T...
WMW

earlier, I think.
  Reply With Quote
Old 12th April 2004, 02:17 AM   #5
diyAudio Member
 
Join Date: Dec 2003
Location: Detroit Area
I am just wondering how noticeable it will be. I realize measureing equipment picks it up, but what about the human ear?
__________________
_________________________________
Could this subject be any more confusing?
  Reply With Quote
Old 12th April 2004, 03:47 AM   #6
azira is offline azira  United States
diyAudio Member
 
Join Date: Dec 2003
Location: Near Seattle
the MTM dispersion issue really should be more of a mixed issue.
They are pretty well badmouthed here but...
There are tons of them commercially availible. If it was a critical noticable fidelity issue, I would guess that the commercial products would do something about it. For example, make it a triangular MTM configuration with tweeter offset above the mids to minimize C-t-C spacing.
Remember that the dispersion issues will only be at problem near the crossover frequency; above that and your tweeter operates like a single driver. If you spend time using the vpr line array tool, you'll notice that onaxis response +/- 10-15deg doesn't suffer that much at the frequencies where you'd be crossing over.
So, I tend to think that an MTM works fine in a HT setup as long as you're listening to it head on... which is as my roommate calls it "primo viewing land." If you were off axis that much, I would consider the effects of being significantly closer to the L/R speaker much more of an issue for sound than being in a bad listening angle for a couple octaves on the center channel.
In addition, the dispersion issue is not a vertical issue when the MTM is on its side like a center channel. That gives you a little more flexibility in placing it vertically in your setup.
--
Danny
  Reply With Quote
Old 12th April 2004, 06:45 AM   #7
frugal-phile(tm)
diyAudio Moderator
 
planet10's Avatar
 
Join Date: Oct 2001
Location: Victoria, BC, NA, Sol III
Blog Entries: 5
I'm still in the no centre is the best centre camp... perfect timbral balance with the mains and no collapse of the image. Really only needed id you have people sitting way out of the sweet spot.

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

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
fronts but no sorround on my hardon ampifer mrlennon Solid State 11 13th August 2006 06:46 AM
Center-Center Distances and Horns BassAwdyO Multi-Way 8 15th January 2006 01:01 AM
Help matching inductor values audax center channel drovn Multi-Way 4 10th February 2004 09:22 PM
Center to Center of Drivers 29" apart in proposed config - Problems?? Ken L Multi-Way 14 3rd November 2003 12:49 PM
My latest idea for fronts! WhiteBoyChriss Multi-Way 2 17th November 2002 07:55 PM


New To Site? Need Help?

All times are GMT. The time now is 12:37 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