Anyone used these dynavox woofers?

Bill poster · 10:16 AM

Dynavox LW5004PMR 5-1/4" Woofer

Dynavox LW6004PMR 6-1/2" Woofer

What I don't understand is that the smaller one in winisd, according to parts express specs, needs a much larger box (17-18 litres) and goes down much lower. Maybe I got this wrong..Is this correct and if so why would this be?

bjorno · 10th April 2011, 10:33 AM

Quote:

Originally Posted by Bill poster

Dynavox LW5004PMR 5-1/4" Woofer

Dynavox LW6004PMR 6-1/2" Woofer

What I don't understand is that the smaller one in winisd, according to parts express specs, needs a much larger box (17-18 litres) and goes down much lower. Maybe I got this wrong..Is this correct and if so why would this be?

Hi Bill,

It's all about T/S...

b

Bill poster · 10th April 2011, 09:10 PM

Cheers fella, makes more sense now; I like the smaller ones but can't see any stockist in europe unfortunately

Taterworks · 10th April 2011, 10:26 PM

If you have any other questions on usage, Ben "Wolf" Shaffer has worked with the 5-1/4" Dynavox woofer and can probably point you to the right tweeter, crossover tweaks, etc.

Inductor · 11:12 PM

Two Dynavox LW6004PMR 6-1/2" Woofers with Vifa DX25TG tweeter with crossover.
Some design help please

http://www.lyeco.com.tw/co.htm

Bill poster · 03:13 PM

Thanks taterworks/inductor, its a possible project ie a friends wants me to make him a set of monitors for his home studio.
I thought of using the excellent jordan JXR6 crossed with either of the dynavox units or possibly an aluminium woofer like the FW168 (but power handling is just 50 w).

The jordans i can get a bit cheaper than normal and also the cabs in corian through a fabricator mate, so i reckon all in around 350 euros for a cracking pair of monitors.

One Q. because the dynavox material is different to the jordans, will using a 1st order(at 375 hz) cause a problem?

Inductor · 11th April 2011, 04:42 PM

There was a big problem with that with the voxs. I would have to look again. Can you be more explicit? The 375 Hz would be a (new) possibility...

Bill poster · 11th April 2011, 04:45 PM

Quote:

Originally Posted by Inductor

There was a big problem with that with the voxs

Can you be more explicit?

?? sorry, bit confused by the reply.

Inductor · 11th April 2011, 08:24 PM

Probably the low xover frequency makes it possible to use a 1.order, but the attenuation is not very nice as seen from it's (driver) output frequency (from my memory). I think you mention 1.order and it requires very good (behaved) drivers.

Einric · 12th April 2011, 07:23 AM

Load a small box (.35) in Iso-Barik and tune the ports (I chose three) for GREAT theoretical response.

10th April 2011, 09:59 AM	#1
Bill poster diyAudio Member Join Date: Jun 2008 Location: London	Anyone used these dynavox woofers? Dynavox LW5004PMR 5-1/4" Woofer Dynavox LW6004PMR 6-1/2" Woofer What I don't understand is that the smaller one in winisd, according to parts express specs, needs a much larger box (17-18 litres) and goes down much lower. Maybe I got this wrong..Is this correct and if so why would this be? Last edited by Bill poster; 10th April 2011 at 10:16 AM.

10th April 2011, 10:26 PM	#4
Taterworks diyAudio Member Join Date: May 2007	If you have any other questions on usage, Ben "Wolf" Shaffer has worked with the 5-1/4" Dynavox woofer and can probably point you to the right tweeter, crossover tweaks, etc. __________________ If it works, but you don't know why it works, then you haven't done any engineering. Taterworks Audio (nothing for sale)

10th April 2011, 11:09 PM	#5
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	Two Dynavox LW6004PMR 6-1/2" Woofers with Vifa DX25TG tweeter with crossover. Some design help please http://www.lyeco.com.tw/co.htm __________________ What the Hell is this crap?! It's not crap, it's muzak. Last edited by Inductor; 10th April 2011 at 11:12 PM.

11th April 2011, 03:01 PM	#6
Bill poster diyAudio Member Join Date: Jun 2008 Location: London	Thanks taterworks/inductor, its a possible project ie a friends wants me to make him a set of monitors for his home studio. I thought of using the excellent jordan JXR6 crossed with either of the dynavox units or possibly an aluminium woofer like the FW168 (but power handling is just 50 w). The jordans i can get a bit cheaper than normal and also the cabs in corian through a fabricator mate, so i reckon all in around 350 euros for a cracking pair of monitors. One Q. because the dynavox material is different to the jordans, will using a 1st order(at 375 hz) cause a problem? Last edited by Bill poster; 11th April 2011 at 03:13 PM.

11th April 2011, 04:42 PM	#7
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	There was a big problem with that with the voxs. I would have to look again. Can you be more explicit? The 375 Hz would be a (new) possibility... __________________ What the Hell is this crap?! It's not crap, it's muzak.


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10th April 2011, 09:10 PM	#3
Bill poster diyAudio Member Join Date: Jun 2008 Location: London	Cheers fella, makes more sense now; I like the smaller ones but can't see any stockist in europe unfortunately

11th April 2011, 08:24 PM	#9
Inductor diyAudio Member Join Date: Feb 2006 Location: Cascais	Probably the low xover frequency makes it possible to use a 1.order, but the attenuation is not very nice as seen from it's (driver) output frequency (from my memory). I think you mention 1.order and it requires very good (behaved) drivers. __________________ What the Hell is this crap?! It's not crap, it's muzak.

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