Jordan JXR6 HD Designs

PrimaLuna · 4th February 2006, 05:33 PM

Have any of you more...able designers come up with an application for these little guys? I just recieved a pair and am trying to figure out what to do with them (which means watching what you more sophisticated builders do with them, at least for a while).

Just looking to see how they are being used.

Cheers
Matthew

soongsc · 5th February 2006, 11:16 AM

I'm trying to figure it out too! It would be a pity to just see them in multi-way speakers.

VT67 · 5th February 2006, 12:35 PM

You can always start of with the small enclosures that Ted Jordan recommends on his site!
http://www.ejjordan.co.uk/systems/jxr6_systems.html

Regards

PrimaLuna · 5th February 2006, 12:40 PM

Yeah, I've seen the Jordan design. I think all Jordan fans have. I was hoping that someone had played around with them and come up with something else by now.

My new Bosch table saw arrives next week. Maybe it is time to do the "playing" myself.

Matt

Colin · 6th February 2006, 11:42 AM

Hi - I'm currently using a pair of JXR6s in 2.4 litre sealed enclosures. Sound impressive for their size, even used on their own.

At present I'm experimenting with the GM MLTL JX92s to add some bass, though if anything I think the 6s might be more sensitive than the 92s. (Looking at the spec, this could be because the 6s seem to be more of a 4 ohm speaker.)

PrimaLuna · 6th February 2006, 03:37 PM

Colin:

Have any pictures of the 6s?

Dumbass · 6th February 2006, 03:46 PM

Find a reasonably priced 8" woofer of roughly equal efficiency, Fs 30Hz or lower, Qts somewhere around .4 - .45. Design a simple passive xover around 300-500Hz or so. Put the woofer in a vented (i.e. mass loaded) transmission line.

PrimaLuna · 7th February 2006, 04:44 AM

Quote:

Design a simple passive xover around 300-500Hz or so.

Alright, I am showing my newbie-ness. Could you explain a little more about how to design this? I understand the basics of crossovers (what they do and the idea behind them.

But, how exactly do I "Design a simple passive xover around 300-500hz or so."

Thanks,
Matt

PrimaLuna · 7th February 2006, 05:57 AM

Okay, for the sake of educating myself, here are the specs for the woofer:
Impedance: 4 ohms
Frequency range: 23 - 1,000 Hz
Fs: 23 Hz
SPL: 89 dB
Vas: 3.00 cu. ft.
Qts: .44

and the other driver would be the new jordan.

So, say I want to crossover at 400hz, or so.

What do I need to build a crossover?

Colin · 7th February 2006, 08:49 AM

FWIW, I'm using the JXR6 down to box rolloff at around 100Hz with no high pass filter. The JX92 is rolled in around the same frequency with a 9mH inductor to form a first order filter. Ideally the 92 could be a second order filter but the combination seems to work fine.

There is no advantage (apart, perhaps, from ultimate power handling) in crossing the 6 at 300-500Hz. Unlike the JX53, it will work down to around 100Hz, so with a high powered woofer, 200Hz should be fine and keeps the crossover point well clear of the midrange.

I'll be interested to see which bass unit you come up with to match it.

Pics - ah yes, I keep promising these. I'll dig out the digital camera.

4th February 2006, 05:33 PM	#1
PrimaLuna diyAudio Member Join Date: Feb 2005 Location: San Francisco	Jordan JXR6 HD Designs Have any of you more...able designers come up with an application for these little guys? I just recieved a pair and am trying to figure out what to do with them (which means watching what you more sophisticated builders do with them, at least for a while). Just looking to see how they are being used. Cheers Matthew __________________ "There he goes. One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die."

5th February 2006, 11:16 AM	#2
soongsc diyAudio Member Join Date: Mar 2005 Location: Taiwan	I'm trying to figure it out too! It would be a pity to just see them in multi-way speakers. __________________ Hear the real thing!

5th February 2006, 12:35 PM	#3
VT67 diyAudio Member Join Date: Jun 2004 Location: Belgium	You can always start of with the small enclosures that Ted Jordan recommends on his site! http://www.ejjordan.co.uk/systems/jxr6_systems.html Regards __________________ VBITNGC Krell KSA-50 Krell KSA-100MkII

5th February 2006, 12:40 PM	#4
PrimaLuna diyAudio Member Join Date: Feb 2005 Location: San Francisco	Yeah, I've seen the Jordan design. I think all Jordan fans have. I was hoping that someone had played around with them and come up with something else by now. My new Bosch table saw arrives next week. Maybe it is time to do the "playing" myself. Matt __________________ "There he goes. One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die."

6th February 2006, 03:37 PM	#6
PrimaLuna diyAudio Member Join Date: Feb 2005 Location: San Francisco	Colin: Have any pictures of the 6s? __________________ "There he goes. One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die."


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6th February 2006, 11:42 AM	#5
Colin diyAudio Member Join Date: Aug 2003	Hi - I'm currently using a pair of JXR6s in 2.4 litre sealed enclosures. Sound impressive for their size, even used on their own. At present I'm experimenting with the GM MLTL JX92s to add some bass, though if anything I think the 6s might be more sensitive than the 92s. (Looking at the spec, this could be because the 6s seem to be more of a 4 ohm speaker.)

6th February 2006, 03:46 PM	#7
Dumbass diyAudio Member Join Date: Mar 2003 Location: British Antarctic Territory	Find a reasonably priced 8" woofer of roughly equal efficiency, Fs 30Hz or lower, Qts somewhere around .4 - .45. Design a simple passive xover around 300-500Hz or so. Put the woofer in a vented (i.e. mass loaded) transmission line.

7th February 2006, 05:57 AM	#9
PrimaLuna diyAudio Member Join Date: Feb 2005 Location: San Francisco	Okay, for the sake of educating myself, here are the specs for the woofer: Impedance: 4 ohms Frequency range: 23 - 1,000 Hz Fs: 23 Hz SPL: 89 dB Vas: 3.00 cu. ft. Qts: .44 and the other driver would be the new jordan. So, say I want to crossover at 400hz, or so. What do I need to build a crossover? __________________ "There he goes. One of God's own prototypes. Some kind of high powered mutant never even considered for mass production. Too weird to live, and too rare to die."

7th February 2006, 08:49 AM	#10
Colin diyAudio Member Join Date: Aug 2003	FWIW, I'm using the JXR6 down to box rolloff at around 100Hz with no high pass filter. The JX92 is rolled in around the same frequency with a 9mH inductor to form a first order filter. Ideally the 92 could be a second order filter but the combination seems to work fine. There is no advantage (apart, perhaps, from ultimate power handling) in crossing the 6 at 300-500Hz. Unlike the JX53, it will work down to around 100Hz, so with a high powered woofer, 200Hz should be fine and keeps the crossover point well clear of the midrange. I'll be interested to see which bass unit you come up with to match it. Pics - ah yes, I keep promising these. I'll dig out the digital camera.

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