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Multi-Way Conventional loudspeakers with crossovers

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Old 6th October 2010, 08:59 PM   #1
diyAudio Member
 
Join Date: May 2010
Default weak bass...

Well,

I have this woofer:

http://www.ciare.com/pdf/catalogo/CW254.PDF

I'm using it in a sealed 56 litres box (20-22 litres net) and I have a very weak bass at low volume levels.
Someone told me that this happens because that driver is conceived for bass reflex pourpose, and because anyway it has a very high Fs to get good deep bass.
So, should I change driver or can I improve the situation in any way?
The box volume seems to be correct even if I would transform it in a bass reflex unit, so I only should add the duct...
What is your opinion about?
Any margin to save the situation?

thanks
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Old 6th October 2010, 09:34 PM   #2
SamoR is offline SamoR  Slovenia
diyAudio Member
 
Join Date: May 2010
Hi!

That someone told you right. This driver is not ment to produce deep bass, but vented box will give you more extended bass then sealed.

I suggest you check this calculator for bass reflex design: mh-audio.nl - Vented System
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Old 9th October 2010, 05:01 PM   #3
diyAudio Member
 
Join Date: May 2010
Thanks. But I see different results with different calculators...so what would be the right one?
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Old 9th October 2010, 06:15 PM   #4
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Join Date: May 2004
Location: Pensacola, Florida
Quote:
Originally Posted by mosfetmaster View Post
Well,

I have this woofer:

http://www.ciare.com/pdf/catalogo/CW254.PDF

I'm using it in a sealed 56 litres box (20-22 litres net) and I have a very weak bass at low volume levels.
Someone told me that this happens because that driver is conceived for bass reflex pourpose, and because anyway it has a very high Fs to get good deep bass.
So, should I change driver or can I improve the situation in any way?
The box volume seems to be correct even if I would transform it in a bass reflex unit, so I only should add the duct...
What is your opinion about?
Any margin to save the situation?

thanks
It is called a woofer, but it is not.
[Xmax] = 1.35 mm
[Hz] = 0.28
[Qts] = 0.28
A MF driver it is.
For best results, operate it above 100-200 Hz.

Regards,

WHG
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