Mtw

jaberwocky6669 · 21st June 2007, 09:19 AM

I see TMW and MTM driver arrangements often. Can you use MTW driver arrangements? Would that sound good? If you have a TMW and you sit in-line with the tweeter then would the woofer be too far away from your ears or does that not matter due to woofer non-directivity?

How about a "mickey mouse" arrangement?

Saturnus · 21st June 2007, 11:16 AM

Sometimes it's preferable. If the speaker is lower than your ears at your normal listening position then having the midrange driver highest gives you a free time alignment. That is why smaller two-way speakers are often recommended to stand on stands with the tweeter lowest.

sreten · 21st June 2007, 01:22 PM

Hi,

Spendor used to do it a lot. Angled off the top sectionfor the mid.

)/sreten.

jaberwocky6669 · 22nd June 2007, 06:01 PM

Oh, with the tweeter lowest but still at ear level?

What do you mean by free time alignment?

I may go this route but I can't find much info online.

JoshK · 22nd June 2007, 06:21 PM

He meant with the M at ear level, making a longer path from the T which helps in the acoustic offset.

sreten · 22nd June 2007, 06:22 PM

Hi, No. Mid at ear level gives longer path to tweeter,

/sreten.

jaberwocky6669 · 23rd June 2007, 02:54 AM

I found those speakers to which you refer sreten. The manual says to position the high frequency unit at ear level.

sreten · 25th June 2007, 09:17 AM

Quote:

Originally posted by jaberwocky6669
I found those speakers to which you refer sreten.
The manual says to position the high frequency unit at ear level.

Hi,

I never said Spendor utilised the "path length" diiferences.
To utilise "extra path length" for the tweeter, axis is the midrange.

One disavantage of the Spendor approach is overall speaker hieght.

/sreten.

jaberwocky6669 · 27th June 2007, 09:05 AM

I'm not even sure what a path length difference is exactly!

Saturnus · 27th June 2007, 09:28 AM

That depends on the speakers, the filter and everything else. Bare in mind that most speakers with a slopping front isn't correctly time aligned for exactly the same reason. You have to have your ear exactly at tweeter level for most of those "time aligned" speakers to work properly, most often I find that the speaker is design too low for that to be possible.

Path length is the difference in distance to each driver measured from your ears.

21st June 2007, 09:19 AM	#1
jaberwocky6669 diyAudio Member Join Date: May 2006	Mtw I see TMW and MTM driver arrangements often. Can you use MTW driver arrangements? Would that sound good? If you have a TMW and you sit in-line with the tweeter then would the woofer be too far away from your ears or does that not matter due to woofer non-directivity? How about a "mickey mouse" arrangement?

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21st June 2007, 11:16 AM	#2
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	Sometimes it's preferable. If the speaker is lower than your ears at your normal listening position then having the midrange driver highest gives you a free time alignment. That is why smaller two-way speakers are often recommended to stand on stands with the tweeter lowest.

21st June 2007, 01:22 PM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Spendor used to do it a lot. Angled off the top sectionfor the mid. )/sreten.

22nd June 2007, 06:01 PM	#4
jaberwocky6669 diyAudio Member Join Date: May 2006	Oh, with the tweeter lowest but still at ear level? What do you mean by free time alignment? I may go this route but I can't find much info online.

22nd June 2007, 06:21 PM	#5
JoshK diyAudio Member Join Date: May 2004 Location: Toronto, ON	He meant with the M at ear level, making a longer path from the T which helps in the acoustic offset.

22nd June 2007, 06:22 PM	#6
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, No. Mid at ear level gives longer path to tweeter, /sreten.

23rd June 2007, 02:54 AM	#7
jaberwocky6669 diyAudio Member Join Date: May 2006	I found those speakers to which you refer sreten. The manual says to position the high frequency unit at ear level.

27th June 2007, 09:05 AM	#9
jaberwocky6669 diyAudio Member Join Date: May 2006	I'm not even sure what a path length difference is exactly!

27th June 2007, 09:28 AM	#10
Saturnus diyAudio Member Join Date: Jun 2005 Location: Copenhagen, Denmark	That depends on the speakers, the filter and everything else. Bare in mind that most speakers with a slopping front isn't correctly time aligned for exactly the same reason. You have to have your ear exactly at tweeter level for most of those "time aligned" speakers to work properly, most often I find that the speaker is design too low for that to be possible. Path length is the difference in distance to each driver measured from your ears.

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