New Jordan driver - preliminary details

[planet10]

Scott: yes, the Bandor 50, and 150.

Size wize, more like the A5 and the (mythical) A15. There were 100 Alpair 10 Basswide made (we are working a pair in MJK's rear loaded horn). Still, size is much the same as JX92.

dave

 

[Scottmoose]

I've got a pair of the old metal cone Omnes BB3AL units (rebadged Veravox 3) in a pair of vented wooden wine-bottle boxes my friend Kurt made. Nice little driver, pity it's defunct. Still use them in my office.

 

[Scottmoose]

Jordan and Bandor have been championing the benefits a low-crossover, wideband driver since the late 70s.

30 years on, we're seeing BMR-based speakers appear which push the same philosophy, such as the Naim, Etude and the Martin Colloms Rhythm King DIY design.

What goes around, etc …

Yep. A good idea, but certainly not a new one, now masqurading under that loathsome 'FAST' (give me strength) moniker.

What once was old is again new.

 

[planet10]

A10BW?

When i saw that on an earlier post i guessed this Madisound Speaker Store

dave

 

[Scottmoose]

Oh and i think i meant the A12 basswide. No matter, the moment passed long ago.

There isn't one of those either. There is a CHBW-70 4in model though. The MA model names indicate their size BTW; it's taken from nominal cone diameter in mm.

 

[chrisb]

There isn't one of those either. There is a CHBW-70 4in model though. The MA model names indicate their size BTW; it's taken from nominal cone diameter in mm.

IINM there was an Alpair10 Bass Wide (several years ago) - Dave may even have even have a pair?

 

[planet10]

Dave may even have even have a pair?

See post 41. Ryan has them and is working on XO

dave

 

[Scottmoose]

Ah yes, of course. I don't think many ever emerged. Shame.

 

[mondogenerator]

that fostex has caught my attention before. Quite high Fs and low xmax, but we cant have it all.

Edit: my mistake, again. I thought that was the FW137

 

[talaerts]

Talaerts,

How about ordering a flat-pak from TwinAudio and going to Hong Kong for a day trip to pay Mark a visit and pick up the drivers (and the flat-paks)... should save you the post, and there should be a few good deals for Sg-HK from the budget airlines operators...

You can check out a few other things audio in Hong Kong too.

In fact my job (and girlfriend ) regularly bring me to Hong Kong so yes indeed, a visit to MarkAudio may be possible. I do know that there is a very special, unique even, shop here in Singapore that next to their own tube amps also sell empty cabinets, but then it will be a matter if the volume corresponds to a reasonable tuning.

 

[Colin]

Details are still sparse but some more information has gone up on the Jordan site about the new drive unit.

E.J.Jordan Designs loudspeaker design & consultancy

 

[planet10]

Thanx Colin.

dave

 

[Bill poster]

Updated rim meaning roll surround ?

 

[planet10]

No, basket shape and the rebate to support it.

dave

 

[chrisb]

An externally hosted image should be here but it was not working when we last tested it.

FWIW, posted a few months ago now on Ted's site, no engineering drawings published yet AFAIK

 

[northernsky]

Unlikely the shape is different and hey cannot replace the old JX92 in old cabinets!

Renato

 

[chrisb]

Unlikely the shape is different and hey cannot replace the old JX92 in old cabinets!

Renato

Indeed, as summarized on the Jordan site:

The most immediately obvious visual change in the shape of the chassis. We fully appreciate that this prevents it from being a drop-in replacement without some modification to the cabinet. However, there were two compelling reason for this change.
Firstly, the quality of the original chassis was inadequate for the weight of the new magnet.
Secondly, we saw the opportunity to significantly improve the bass performance in terms of extension, linearity and power handling. This required a larger, custom designed suspension, which would not fit the original chassis. A circular chassis would have needed to be much larger. The new chassis shape overcomes all these problems. It is also a more suitable shape for use in array configurations.

 

[smallangryboy]

Anyone else a little disappointed the new Jordan's won't be a direct drop in replacement? I understand that many cabinet designs could be altered but it more or less renders obsolete my spherical speaker designs using this new driver.

Plus I always think that a round chassis suited the design. Anyone suggest another manufacturer that I could use with a similar/identical chassis footprint and similar performance to the JX92?

 

[chrisb]

Anyone else a little disappointed the new Jordan's won't be a direct drop in replacement? I understand that many cabinet designs could be altered but it more or less renders obsolete my spherical speaker designs using this new driver.

Plus I always think that a round chassis suited the design. Anyone suggest another manufacturer that I could use with a similar/identical chassis footprint and similar performance to the JX92?

progress, dude - let the anger go

Other than the Jordan-USA's E 100HD, there is one other manufacturer of metal cone FR drivers with which many of us are familiar, but he uses a polymer plastic material for frames, and none I think would have similar/identical footprint and performance to the now superceded (Ted) Jordan JX92

 

[Melo theory]

I'm just disappointed that manufacturers use odd shaped baskets at all!
I can appreciate having it round with the top and bottom lopped off for arrays and MTM's but to make all sides of the basket oddly shaped is just inconsiderate to DIYers.
I'm having this trouble with the vifa tc9's.
I mean.....we don't all have CNC routers!