speakers configuration

Status
Not open for further replies.
Jump to Latest
sesebe

sesebe

Member
Joined 2011
#1
Hello all,

I want your opinion.

I'm thinking to do a 3 speaker full range with side woofer for a narrow front bafle.
These are the speakers that I want to use:

monacor-RBT-95
celestion-tf0510 or monacor SP-4/60PRO or monacor MS-130
monacor-sp302pa


What you think, good fit?
The filters will be made by me (I have some experince so no problem with this) but I do not know the exact cut frequency in special because of side woofer.

Can you recomend something?

The big questions now is how I can simulate the side woofer?
 
Last edited:
#4
Hi,

Side woofers are generally configured as subs.

And your bass driver is no real subwoofer.

An attempt to mitigate the amount of BSC of the
front drivers by a higher x/o frequency is really
something you can only do by measurements
and listening, I suspect it would sound odd.

rgds, sreten.
 
#5
sreten said:
Hi,

Side woofers are generally configured as subs.

​
Good point. This was may assumption too.

And your bass driver is no real subwoofer.
​

Maybe but I expect to obtain some bass with SP-4/PRO because the characteristics are fairly linear in low range and has a big linear excursion: +/-2.3mm I want to cross it around 200-250Hz, maybe lower if it is possible (after measurements).


An attempt to mitigate the amount of BSC of the
front drivers by a higher x/o frequency is really
something you can only do by measurements
and listening, I suspect it would sound odd. Maybe but not necessarily.
rgds, sreten.
Click to expand...

Not necessarily. I had a pair of speakers like this and after I changed the filters it started to sound very OK, and that with super cheap speakers and in a poor quality box.

I destroyed partially mid speakers and now I'm thinking to made a similar speaker but with much better speakers (but not expensive) and in a verry good box (but again not too expensive).
 

Attachments

  • SP-4_60PRO.gif
    SP-4_60PRO.gif
    42.9 KB · Views: 397
#8
Audio Physic has a popular line of NARROW(6.7") up to narrow(9") speakers. What is your baffle width goal?
--
With 7" NARROW front baffle, do not forget that the SEALED midrange must have enough Xmax to cover baffle step boost. 5" midbass with Xover 200Hz is best with Fs<40Hz and Xmax>5mm and Xover ~1.8-2kHz
--
With 9" narrow front baffle a SEALED 6" midbass with Xover 1.6-1.8kHz and 140Hz Xover to woofer covers baffle step, and hides woofer position. A 9" baffle allows large radius low diffraction edge treatment.

-------There are better drivers for a narrow, side-woofer 3-way.
-the Monacor RBT-95 is a super tweeter requiring a 6Khz+ crossover, too high for 5" midrange which requires ~2Khz Xover to avoid cone breakup and beaming.

-the Celeston tf0510 looks good for a generic 5" midrange

-the monacor SP-4/60PRO is a decent 4", BUT does not have enough Xmax for baffle compensation, AND requires ~400Hz Xover in a sealed box which might make the listener notice the side woofer position.

-the monacor MS-130 is not good.. only 0.7mm Xmax

-the Monacor SP-302PA has an Fs of 45Hz and 2.5mm Xmax. It is a ProAudio midbass, and not a woofer.
----
Visaton speakers supports the free Boxsim diy-speaker design tool. Visaton also provides over 100 Boxsim diy-designs with complete simulation files. It is in German, but Boxsim can be used with any speaker brand.
 

Attachments

  • Narrow3way.jpg
    Narrow3way.jpg
    70 KB · Views: 369
  • EdgeDiffraction.jpg
    EdgeDiffraction.jpg
    96.3 KB · Views: 377
  • SB exmaple.jpg
    SB exmaple.jpg
    127.2 KB · Views: 391
#16
You're considering 4 way, interesting. Why?

To cut a long story short you've seen how easy it is to design a crossover in one dimension (filter design). The next level in crossover design is to move to three dimensions, and begin with with your radiation patterns. This would give a good answer to the above question.

Without this 4 way is just complication.
 
#17
AllenB said:
You're considering 4 way, interesting. Why?

To cut a long story short you've seen how easy it is to design a crossover in one dimension (filter design). The next level in crossover design is to move to three dimensions, and begin with with your radiation patterns. This would give a good answer to the above question.

Without this 4 way is just complication.
Click to expand...

Can you sugest some links for study?
 
#20
LineSource said:
Audio Physic has a popular line of NARROW(6.7") up to narrow(9") speakers. What is your baffle width goal?
--
With 7" NARROW front baffle, do not forget that the SEALED midrange must have enough Xmax to cover baffle step boost. 5" midbass with Xover 200Hz is best with Fs<40Hz and Xmax>5mm and Xover ~1.8-2kHz
--
With 9" narrow front baffle a SEALED 6" midbass with Xover 1.6-1.8kHz and 140Hz Xover to woofer covers baffle step, and hides woofer position. A 9" baffle allows large radius low diffraction edge treatment.

-------There are better drivers for a narrow, side-woofer 3-way.
-the Monacor RBT-95 is a super tweeter requiring a 6Khz+ crossover, too high for 5" midrange which requires ~2Khz Xover to avoid cone breakup and beaming.

-the Celeston tf0510 looks good for a generic 5" midrange

-the monacor SP-4/60PRO is a decent 4", BUT does not have enough Xmax for baffle compensation, AND requires ~400Hz Xover in a sealed box which might make the listener notice the side woofer position.

-the monacor MS-130 is not good.. only 0.7mm Xmax

-the Monacor SP-302PA has an Fs of 45Hz and 2.5mm Xmax. It is a ProAudio midbass, and not a woofer.
----
Visaton speakers supports the free Boxsim diy-speaker design tool. Visaton also provides over 100 Boxsim diy-designs with complete simulation files. It is in German, but Boxsim can be used with any speaker brand.
Click to expand...


Hi LineSource, can you provide more information about these projects?
 
Status
Not open for further replies.
Top Bottom