Need suggestions of midbass for Jordan JXR6?

[Norris Wilson]

Hi everyone,

I am seeking sugestions for a quality midbass driver that will mate well with the Jordan JXR6 wideband driver in a resonably sized MLTL type enclosure? I do not need to go below 40Hz to 50Hz -3db on the bottom frequency, since I will be using subwoofers below that.
I would think a driver that is efficient enough to be used in unison with a coil that will roll it off around 100Hz. And still have the proper efficency to blend with the JXR6 in a two way speaker being driven by a single tube amplifer would be optimum?
A driver that has a quick pulse response that will keep up with the smaller JXR6.
The JX92S would be a possibility. But, the cost of $370 a pair plus around $35 shipping is making it prohibative for my budget after purchasing the JXR6.

Possibly the Neo-Phone driver?

Since I am somewhat technically challenged, I hope someone here can help?

Thanks for any and all suggestions.

Norris Wilson

[tinitus]

Hi,

If you want a sub I think it might be best with bass in closed box

This 10" AUDAX looks pretty good, and on buyout - and you might even not need that sub

http://www.partsexpress.com/pe/showd...number=299-605

[Dumbass]

Maybe the Seas H511? It has similar efficiency, and generally anything madisound puts in their kits ought to be decent. They sell it for $75 each.

If it were me I'd consider a higher crossover, like 200 to 250 Hz, the midwoofs would still only be covering a couple octaves or so. With a higher crossover freq, you could consider a real simple first order filter.

[Norris Wilson]

Thanks Tinitus, the 10" Audax looks good. Especially since it cost less than $50 each, a good deal. I feel like I could easily get my desired -3db point around 50Hz in a sealed box. I will keep this woofer in mind.

Dumbass, I wanted to run the JXR6 full range without a filter of any kind. Do you feel like there would be a problem with a peak within the overlap of these two drivers with the midbass being rolled off around 200Hz at 6db? The JXR6 in a 2 liter sealed box will yield around 115Hz -3db without stuffing according to the information at the Jordan site. I am not sure how the effect of the sound quality of the JXR6 will be when loading it in a very small enclosure of 1 liter or so t roll it off at a higher frequency?

The SEAS P21RF\P looks good as well. Do you feel this driver would be best loaded in a sealed cabinet to obtain the best results for midbass duties?

I have access to 4 used Dynaudio 15W75 5.5" woofers. Do you think 2 of these woofers per side rolled off with a 6db slope under the JXR6 would be a good choice?

Any other recommendations for midwoofers?

Thanks

Norris

[tinitus]

Hi,

I think I have to correct my opinion about the Audax

Actually this 12" Pioneer seem to give much better result ..... about -6db/35hz..... I think its the one a member was very enthusiastic about

http://www.partsexpress.com/pe/showd...number=290-118

[Dumbass]

Originally posted by Norris Wilson
Dumbass, I wanted to run the JXR6 full range without a filter of any kind.

I think passive low-pass filters that low are problematic. It would be easier and more reliable IMO to put together a first-order passive crossover at 250Hz, and that's what I would do in your position, but I am not an expert.

[tinitus]

I better hurry to agree, and I might even go higher than 250hz

[Norris Wilson]

OK guys,

But I feel I will be loosing something when using a filter on the Jordan driver. I want to keep the midrange as pure as possible.
I would like to try the JXR6 without a filter first.

So, since the use of a passive filter for the midbass below, say 200Hz is problematic. Where the inductor could be a huge power sucking pig.
I would like to switch gears and propose something different.

I have the ability to biamp this 50Hz and up speaker using the chosen midbass driver and the Jordan JXR6.

I have been pondering the idea of possibly using a Marchand 12db XM44-EMB band pass electronic crossover on the midbass with a dedicated midbass amplifier.

http://www.marchandelec.com/xm44.html

Say, crossing it over from 50Hz on the bottom to 100Hz, or even 150Hz on top. Then, run the Jordan full range without a filter with a tube amplifier that has a dedicated volume control.
And using my subwoofers from 50Hz and down to keep the bass well controlled with impact.

Is this an exersize in chasing my tail? Or, would I be better off in using a subwoofer only with the JXR6 and be done with it?

For some reason, the mear size of the JXR6 does not give me the confidence that a sub-JXR6 combo would be best. I would think the Jordan will be lacking in the lower midrange and midbass region.
The only way to find this out, is to try it when I get the JXR6's.

I am just thinking out loud here.

Any suggestions other than I may be crazy?

Norris

[tinitus]

Well, thats everybodys dream...a crossoverless speaker with huge power ... otherwise your idea is cool, if done right .....well, I have thought of it myself

First, as you will biamp you wont loose any power because of a few filtercomponents...on the contrary....the Jordan isnt excactly high efficient and will need some power....and relieved from the lowend it will withstand high levels much better

Second, if you use a sensitive woofer like the pioneer you will actually gain some efficiency.....especially if you use it up to 500hz....actually, just adding a sub might do much worse than a simple filter.....and theres the bafflestep issue

Third, your nice 2" Jordan, which actually is midrange, wont have the power below 500hz, that is to exspect from a wellbalanced system ....

Forth, Its my impression that you expect "highend" sound ... think of this.... your Jordan combined with a 12" resembles a smaller version of the famous systems with a 15" and 2"horndriver

Last, you are afraid to loose the finesse of the Jordan.... good thinking, but theres a risk for that allready with biamping and active filters....allthough not directly connected to the Jordan, its still in the system to mess with what you hear..... keep it simple

[Dumbass]

Or, would I be better off in using a subwoofer only with the JXR6 and be done with it?

The JXR6 isn't designed to be used for that purpose but the JX92S is. I have heard the JX92S and was very impressed with the sound quality. But I think the JXR6 is reputed to excel the JX92S in certain categories.

Bi-amping is IMO a great idea, but of course requires that much more investment of time/money.