Ultimate small bookshelf?

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#41
Fostex 107E

I googled Fostex 107E and came up empty handed.
Where would one find information on this driver?

Do you know of any crossovers made for a Jordan
53/150 2-way?

Can I use a standard Parts Express cabinet?
Where do I learn how to make crossovers myself?

Do you think the extra double thickness of the North Creek Ikema cabinet
significantly improves the sound?
 
#42
The Madisound Fostex catalog has links to both the FE107E's spec sheet and if you scroll down to the end of the page, to recommended enclosures.

Madisound Fostex Catalog

You may also want to check out the FE127E. This is the driver used in Omega Loudspeakers smallest model. Designing a 10 ltr box to meet your space requirements should be easy. Their are reviews out there if you search for them.

Cheers...TG
 
#46
Yes indeed...

Considering that you are paying for all the work they have done optimizing the performance of the driver and the cabinet, it is undoubtedly an excellent deal.

DIY versus low cost/high performance commercial products like Omega, Moth Cicada and the Horn Shoppe is break even at best. It all depends where you get your jollies.

Hacking a Jordan TL versus buying a Konus Essence may be another story.

Cheers...TG
 
#47
Jim Griffin has a 7 litre (0.25cu ft) minimonitor design using the Jordan JX92. It sounds great, and you can put the port on the front and skip the baffle step correction if you want to use it near a wall.

Parts Express do a range of 0.25 cu ft cabinets and Creative Sound do a kit.

Being a masochist I built mine out of a 12mm MDF/2mm lead sandwich and now know how NOT to do this.

I am in the process of adding Fountek JP3 ribbons - very promising but I haven't got the xover right yet.........
 
#48
The JX92 and the Fostex's look very interesting. How would a single driver sound as compared to a more traditional 2-way system? My assumption would be that having a specific driver dedicated to a specific range would be better than one driver trying to be all things, but you tell me. The one driver approach would certainly make the process easier!
 
#49
a ha u just asked THE million dollar question.

2 drivers mean an XO usually 2nd order or more (if u use a 5" + 1"). so in this case you have more components to manage (drivers, inductrors, capacitors etc...)

1 fullrange means no XO but the fullrange should be capable of doing all things equally well.

my guess it that a fullrange will not go as low or as high as a 5" 2 way but might sound more musical. this is why it makes sense to expriment with good but cheap drivers like Tangband/Fostex (fullrange) or Parts Express/Vifa TC (5" 2 way).
 
#50
navin said:
a ha u just asked THE million dollar question.

my guess it that a fullrange will not go as low or as high as a 5" 2 way but might sound more musical. this is why it makes sense to expriment with good but cheap drivers like Tangband/Fostex (fullrange) or Parts Express/Vifa TC (5" 2 way).
Click to expand...


Beg to differ on that. I'd recommend to go for the best like jordans JX92 or some Lowthers. Playing with cheap stuffs for a newbie will most probably cause them to have a negative perception that full range drivers are lacking in highs and lows. I've used the JX92 in back loaded horns and I can tell ya the bass really kicks. Partnered with some pure silver interconnects and Black Gates, all highs are clearly audible.




regards,
will.
 
#51
OK - You almost have me sold on the Jordan JX 92's... First question - "Black Gates" what is that? Second - How can I determin the best box dimensions for this driver (given my space constraints)? Third - Where can I buy them?

Thanks again.
 
#52
You can find the design for building them (JX92S that is) at Jordan's website, just click on systems - I would recommend the ported 92S/6 layout since you do not have a sub yet. You can change the dimensions to fit into your bookshelve so long as the internal volume remains the same. I calculated it out to be 30x12x22.5 (WxHxD) with a 3" ID port 11" long. The speaker will appear to lay on it's side but this is okay with a fullrange since there is only one driver.

As for purchasing the Jordan JX92S, the only distributor in N. America is in Canada (go figure) so shipping is slow but I have done business with them before and they are a good company.

Go to Creative Sound Solutions

These will be audiophile quality speakers, I have built a cheap pair of Tang Band full-rangers and they sound marvelous - and those drivers were only $15/piece. The Jordan's are true audiophile equipment.

Enjoy,
Chris
 
#53
DIY Newbie - Single Driver

To get to some of the rational of why single drivers make sense and more importantly music take a look at the attached links.

Herb Reichardt has a review of the Konus Essence that is a fairly extended essay on single drivers

Konus Essence Review

Dick Olsher has an essay at
Single Driver Ecstasy

James Meluish maintains both the Single Driver Website and the fullranger forum at
Single Driver Website
and
Fullranger Forum
The forum is a "relaunch" of the full range driver forum to which you will find many links. Sadly, its archives are currently unavailable.
 
#54
Re: CSS's shipping

Shipping was not an issue for my Jordans. With no special handling CSS had them to me in three to four days with zero import hassles. I would be inclined to correspond with CSS prior to ordering rather than going straight to the online order form. That way you will get a better idea about both availability and CSS's current capacity to get them out.

By the way, Black Gates are capacitors valued by many for their musicality. I can't guess where Will is using them but I suspect it is not in his speakers...I could be wrong. I think his point is that if you make qualitative changes to your system, good or bad, the Jordan's have the transparency to make it readily perceptible.
 
#55
Re: Re: CSS's shipping

tgorham3 said:
Shipping was not an issue for my Jordans. With no special handling CSS had them to me in three to four days with zero import hassles. I would be inclined to correspond with CSS prior to ordering rather than going straight to the online order form. That way you will get a better idea about both availability and CSS's current capacity to get them out.

By the way, Black Gates are capacitors valued by many for their musicality. I can't guess where Will is using them but I suspect it is not in his speakers...I could be wrong. I think his point is that if you make qualitative changes to your system, good or bad, the Jordan's have the transparency to make it readily perceptible.
Click to expand...

CSS has great customer service, no worries there. I would suspect that the caps have been added to a baffle step compensation network to increase the high end recovery. I don't own the JX92S but I did get to live with a pair for couple of weeks. They are quite wonderful to listen to. They were in a small BR cab and made me wish they were in a TL as the bass potential was very evident.
 
#56
Bogos - Thanks for the dimensions. The height looks great, but that woudl have to be one heck of a bookshelf to accomodate a 22.5" depth... Looking on the Jordan website, the satellite speaker they show is basically 8"h x 11"d x 6"w. What am I sacrificing to go with a smaller interior volume?
 
#57
With all due respect I think Bogos is off a decimal point. The design he sketchs out is a 131 ltr box tuned to 17.5 hz. Me thinks he was really gunning for a 13.1 ltr box tuned to 55 hz.

The WinISD's optimum dimensions for the 13.1 liter are W 9.82 X H 15.71 X D 5.89

WinISD's maximally flat BR is 15.1 ltrs tuned to 46.4
 
#59
Revised view of the world

Taking a look at the Jordan site, it is more likely Bogos was giving you a Jordan 92S/6 redimensioned based on your stated needs and annotating it in inches out of habit. If you read inches as cm, both the Bogos and Jordan designs come out to 8.1 liters and both use a 11 cm long 3 cm diameter vent. Read all the dimensions as cm and you end up with a box tuned to around 44 hz.

It models nicely and the gradual roll off would probably work very well close to a wall as it would be in a bookshelf.

Sorry to double guess Bogos but 131 liters wasn't working for me.

Cheers...TG
 
#60
Will said:



Beg to differ on that. I'd recommend to go for the best like jordans JX92 or some Lowthers. Playing with cheap stuffs for a newbie will most probably cause them to have a negative perception that full range drivers are lacking in highs and lows. I've used the JX92 in back loaded horns and I can tell ya the bass really kicks. Partnered with some pure silver interconnects and Black Gates, all highs are clearly audible.




regards,
will.
Click to expand...

I think he would be amazed by the Fostexes (Fostices?).
 
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