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Old 4th June 2008, 04:19 AM   #1
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Default 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
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Old 4th June 2008, 11:00 AM   #2
Colin is offline Colin  United Kingdom
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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?
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Old 4th June 2008, 11:22 AM   #3
sreten is offline sreten  United Kingdom
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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.
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Old 4th June 2008, 11:43 AM   #4
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Hi,

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

Cheers!
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Old 9th June 2008, 09:39 PM   #5
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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.
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Old 9th June 2008, 09:43 PM   #6
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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
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Old 10th June 2008, 03:39 AM   #7
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say, where did you get the JXR6HD. I thought it is out of stock everywhere...
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Old 10th June 2008, 10:16 AM   #8
sreten is offline sreten  United Kingdom
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Hi,

Two Jordan drivers per cabinet ?

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

/sreten.
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Old 10th June 2008, 11:29 AM   #9
Colin is offline Colin  United Kingdom
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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.
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Old 11th June 2008, 03:17 AM   #10
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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?
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