Jordan JxR6

[Bill poster]

this thread split from here

What did I miss??

After some thought I decided to make sat type speakers using pairs of JXR6's in each cabinet (instead of the JX92s), match them to a sub using the largest Jordan bass driver. No doubt someone has heard the JXR6 and hates them

Luckily I heard the original model in Electrofluidics loudspeakers almost 20 yrs ago so am aware of how they sound- the designer tweaked/improved the 50mm units in some way - They were incredibly analytical, almost too much so - trying to find info about these speakers but nothing on the web..

edit- found this link http://www.gramophone.net/Issue/Page...94/165/777144/

[Scottmoose]

If anyone has and hates them, I haven't heard about it. Just make sure you're going low enough to be able to cross to a single sub (you need to get down to ~80Hz or a bit lower with the mains to avoid any directionality issues)

[Bill poster]

Thanks Scottmoose- I've read about these little units being quite resiliant without any crossover at all but its not ideal is it? so to achieve 80hz accoustic crossover I wd need to go for a larger volume enclosure- any point in a reflex design?

a jordan unit between the jxr6 and jx92 wd be nice..

[R-Carpenter]

Don't forget that xjr6 is a spiderless driver so you want to approach acoustic roll off carefully. My guess is that it's better to be crossed with 125 or even 150 to get a nicer low end extension. May be with a first order crossover even.

[planet10]

Originally Posted by R-Carpenter

xjr6 is a spiderless driver so you want to approach acoustic roll off carefully. My guess is that it's better to be crossed with 125 or even 150 to get a nicer low end extension.

The JxR6 is a facinating little driver. It is designed to be a mid-tweeter and not a full-range. Suitable for a FAST like Tysen.

dave

[navin]

Originally Posted by Bill poster

After some thought I decided to make sat type speakers using pairs of JXR6's in each cabinet

Originally Posted by R-Carpenter

Don't forget that xjr6 is a spiderless driver so you want to approach acoustic roll off carefully. My guess is that it's better to be crossed with 125 or even 150 to get a nicer low end extension. May be with a first order crossover even.

I was given to understand that the JXr6 should only really be used above 200Hz, that means that the woofer must pretty close to it like a tweeter in a 2 way. If used as part of a typical sub-sat system (like Bose acoustimass systems) the woofer output will interfere with the imaging.

[Scottmoose]

Exactly. Twin subs (well, woofers) would be the order of the day, unless a bunch of them were used per channel to get power handling up & reduce displacement. With less, I'd probably cross at ~500Hz to dedicated bass units per channel.

[Colin]

This German design on the hifisound.de site

hifisound eShop * -* E.J.JORDAN MINIUM - KOMPLETT-BAUSATZ *

Uses a single JXR6 with two Visaton AL130 drivers in a MTM configuration. It crosses at 500Hz, as Scott recommends. The drivers look a good bet to act as a small woofer for the JXR6 as they can be used in cabinets as small as 5 litres, so a smaller box than the Jordan bass units.

Farnell stock them in the UK

ALUMINIUM SPEAKER 90W 8OHM - AL130 1301 - VISATON

Combined with Hypex active LS panels, it would make an interesting speaker.

[Bill poster]

Thanks for organising the new thread- below is a quote of what I read to make me think the little jordans could be used without crossover and I also read that they can be accoustically crossed over as low as 80hz with the right enclosure and electrically at 120 hz or so- is 120hz low enough for a single sub? maybe not.

Need suggestions of midbass for Jordan JXR6?

"I have just completed a pair of vertical linear arrays consisting of hexagonal sixteen liter enclosures using four each of the JXR6 HD drivers. They are designed as sealed acoustic suspension providing a system resonance of about 110 to 115 hz. No crossover or equalization components are used with the Jordans."

"Regarding longevity - when I last saw Ted, he gave me a demonstration of a JXR6 running at 1Hz (that's not a misprint), pumping away at high volume. Couldn't hear anything of course, but very impressive. (the unit had an experimental loading system known as 'hand held'). Ted also said he'd run a unit red hot once in an attempt to find out how much power it would take to get one to fail."

[zygibajt]

Halo,

Has anyone actually built or heard the two way system base on JXR6 and Jordan's JX125 or JX150. How does it sound in general?

I'm kind of bored with full rangers with wizzers, adding Aurum Cantus ribons, searching for bass help. I'm planning on buying Supravox EXc drivers and built some sytem based on them in some further future when I can afford them but I'm looking for a nice allround speaker that will play well with variety of amps, will not lack of bass foundation as most fullrangers do, will be quite linear and sounds at least very nice or extremelly well.

I was thinking about either one JX150 and one JXR6 per channel or maybe a line array of four per channel plus either one or two (I haven't looked deep inside the actuall systems) JX150.

Has anyone had any expirence with such systems?

I don't want to strech neither of the drivers and especially JXR6 cutting it low but rather use them well in their operating area.

Thanks