Lowther drivers, front horn or back loaded horn?

Well a bass horn for 30hz is a monster, better go Bass reflex!!

If you are going for that BMS driver better try to get the 340 azura horn or even the 160 and cut driver down to 300hz, it has a coaxial tweeter...I heard mixed things about BMS...

Up to 300hz the JBL 15" driver will do fine.

For 800hz I would get something like this:
http://www.usspeaker.com/beyma%2012BR70-1.htm

Johnk- The nice chap who sold them to me told me that you built them when I first made the enquiry.Thats why I snapped them up when I did without an audition and without hesitation. I Had to drive 2000 round trip for them, but was more than well worth the effort, time and money etc. Had a good time in Las Vegas also, I kept reassuring my better half that It was a holiday.lol. Cost me heaps to keep her sweet (and still is).
There is another pair of your speakers (I believe)here on Audiogon, that are two 150's per side I bet they sound awesome, If they had been an other colour but blue I may have been able to swing it. For the price that they are they are a steal. I don't understand why they have not been sold already. Seems different strokes for different folks. Perhaps horn speaker lovers have different ears to the rest.

Hi Alan,
I am unsure of what you mean by 'ringing'? I only hear music from the speakers and do not hear any Intrusions. The distance is about 8' between the speakers and will eventually go perhaps 10', although I will try to find the optimum when the room gets a make over. They are 'toed in' but when the wall that they are against is fully clear only then can I move apart etc. I'd like to try corner placement also in the future to see what they sound like. I sit about 15' away at present for normal listening, but when 'I'm in a mood for a bit of AC/DC' I put out a 'loud noise' warning then crank it up. They do go loud!very. And the 18" bass cones pump out some wonderfully articulate bass also with oodles of depth, dunno how low they go but there is no need for a sub! I have not heard any Azura's or even these 150's til I bought them so can't comment. Of all the equipment I have to be replaced (funds permitting) these fantastic Johnk creations will sure stay for the duration. I use my Nagaokas with Fostex FE168Sigma cones for late night listening as the Oris are Indeed a little to dynamic for the oh-so quiet moments.

Hi Jsadurni,

That Beyma looks very good, What exactly did you heard about the coaxial 4592 BMS?
I think that is the same that BD design use in his orphean.
If I use the 4592, I wont have to use a tweeter and i can keep the system two ways.
I mostly listen late at night, and I like to listen in moderate volume levels so I dont awake my family..do you think this kind of horn system bass reflex/compression driver can make it at low levels?
Thanks

Alan

azuras have a slightly more open sound trebile is a wee better than oris.A oris produces deeper bass this can make for better integration with bass system.None of these horns ring azuras are thick fiberglass oris is make from the same plastic car bumpers are.Now keep in mind oris has a 150 200 250 horn azura also makes a few sizes this comparison is azura 204hz- to oris 150.