Jordan 2 way speakers advice please!

Bill poster · 4th June 2008, 03:19 AM

Making a set of speakers for my father and was thinking of using 2 x Jordan JXR6 HD and 2 x 6x9 inch car bass drivers (firing downwards in a bass reflex cabinet). The bass speakers are dictated by the shape of the cabinet. I need advice as to what crossover to use and what size the sealed top cabinet for the Jordan units should be? Is 200 hz the right crossover point?

Cheers

Will

Colin · 4th June 2008, 10:00 AM

Howdy - the Jordan site recommends anything up to 4 litres for the JXR6. 3 litres is about optimum for a maximum flat response. I'm currently using a 2.2L enclosure for mine and they run to around 100Hz, used fullrange with no x-over (in fact no bass units at all at the moment).

Crossing over at 200Hz would give more headroom and be safer for bass output - the less LF extended JX53s crossed at 500Hz with a 6dB xover.

Which car bass units are you using?

sreten · 4th June 2008, 10:22 AM

Hi,

Most car 6x9's will not work well in vented boxes as they are designed
mainly for rear shelf mounting and have highish Fs and Qts (~ 0.9).

http://www.t-linespeakers.org/projects/rune/index.html

Something similar crossover wise would work well. Bass box does
not have to be a TL but you do need a decent quality bass unit.

/sreten.

Geek · 4th June 2008, 10:43 AM

Hi,

If that is like the 6T, a pretty good match for it is the Silver Flute W14RC25 5-1/2" woof

Cheers!

Bill poster · 9th June 2008, 08:39 PM

Thanks for the advice- I meant to say 2x jordan 50mm units and 1x bass unit per speaker.

As I would like to get a decent oval shaped bass unit and a car unit is not advised, are there any oval bass alternatives? The cabinet design looks great so it would be a shame if i cannot find a suitable unit, the only other option I can see is to ditch the design and use 2 jordan units in a small enclosure with a sub.

Cal Weldon · 9th June 2008, 08:43 PM

How's this?

http://www.partsexpress.com/pe/showd...number=264-864

Here without the neo mag.

http://www.partsexpress.com/pe/showd...number=264-837

They also have an 8 X 12 unit.

http://www.partsexpress.com/pe/showd...number=264-838

oon_the_kid · 10th June 2008, 02:39 AM

say, where did you get the JXR6HD. I thought it is out of stock everywhere...

sreten · 10th June 2008, 09:16 AM

Hi,

Two Jordan drivers per cabinet ?

A small pair of 0.5 ways + active subwoofer is probably your best bet.

/sreten.

Colin · 10th June 2008, 10:29 AM

With two JXR6s per side the sat/sub idea is a good one. Google the Bandor Pentachord for an example. You could probably get away with using the sealed box to roll off the sats and an active sub - no messing around with crossovers.

The JXR6s are 4 ohms so you'll need to connect in series or run in parallel with a series resistor.

Bill poster · 11th June 2008, 02:17 AM

Thanks Cal and Colin-

The speaker links are just what i need and the prices are very reasonable. Thanks so much.

Will the little Jordans cope without crossovers? I think they might get the occasional punishment with loud classical. The bass speakers will be firing downwards and won't be visible - If i were to use crossovers what is recommended? around 180?

4th June 2008, 03:19 AM	#1
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Jordan 2 way speakers advice please! Making a set of speakers for my father and was thinking of using 2 x Jordan JXR6 HD and 2 x 6x9 inch car bass drivers (firing downwards in a bass reflex cabinet). The bass speakers are dictated by the shape of the cabinet. I need advice as to what crossover to use and what size the sealed top cabinet for the Jordan units should be? Is 200 hz the right crossover point? Cheers Will

9th June 2008, 08:43 PM	#6
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	How's this? http://www.partsexpress.com/pe/showd...number=264-864 Here without the neo mag. http://www.partsexpress.com/pe/showd...number=264-837 They also have an 8 X 12 unit. http://www.partsexpress.com/pe/showd...number=264-838 __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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4th June 2008, 10:00 AM	#2
Colin diyAudio Member Join Date: Aug 2003	Howdy - the Jordan site recommends anything up to 4 litres for the JXR6. 3 litres is about optimum for a maximum flat response. I'm currently using a 2.2L enclosure for mine and they run to around 100Hz, used fullrange with no x-over (in fact no bass units at all at the moment). Crossing over at 200Hz would give more headroom and be safer for bass output - the less LF extended JX53s crossed at 500Hz with a 6dB xover. Which car bass units are you using?

4th June 2008, 10:22 AM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Most car 6x9's will not work well in vented boxes as they are designed mainly for rear shelf mounting and have highish Fs and Qts (~ 0.9). http://www.t-linespeakers.org/projects/rune/index.html Something similar crossover wise would work well. Bass box does not have to be a TL but you do need a decent quality bass unit. /sreten.

4th June 2008, 10:43 AM	#4
Geek diyAudio Member Join Date: Sep 2004	Hi, If that is like the 6T, a pretty good match for it is the Silver Flute W14RC25 5-1/2" woof Cheers!

9th June 2008, 08:39 PM	#5
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Thanks for the advice- I meant to say 2x jordan 50mm units and 1x bass unit per speaker. As I would like to get a decent oval shaped bass unit and a car unit is not advised, are there any oval bass alternatives? The cabinet design looks great so it would be a shame if i cannot find a suitable unit, the only other option I can see is to ditch the design and use 2 jordan units in a small enclosure with a sub.

10th June 2008, 02:39 AM	#7
oon_the_kid diyAudio Member Join Date: May 2008	say, where did you get the JXR6HD. I thought it is out of stock everywhere...

10th June 2008, 09:16 AM	#8
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, Two Jordan drivers per cabinet ? A small pair of 0.5 ways + active subwoofer is probably your best bet. /sreten.

10th June 2008, 10:29 AM	#9
Colin diyAudio Member Join Date: Aug 2003	With two JXR6s per side the sat/sub idea is a good one. Google the Bandor Pentachord for an example. You could probably get away with using the sealed box to roll off the sats and an active sub - no messing around with crossovers. The JXR6s are 4 ohms so you'll need to connect in series or run in parallel with a series resistor.

11th June 2008, 02:17 AM	#10
Bill poster diyAudio Member Join Date: Jun 2008 Location: London/Bangkok	Thanks Cal and Colin- The speaker links are just what i need and the prices are very reasonable. Thanks so much. Will the little Jordans cope without crossovers? I think they might get the occasional punishment with loud classical. The bass speakers will be firing downwards and won't be visible - If i were to use crossovers what is recommended? around 180?