Cool!
What drivers have you got?
I was just going to use what I have in my horns - JBLs mostly, and an Oberton 12" for the mid bass that modelled well in a horn.
Then if I don’t like it I can just put the drivers back and set fire to the MEH.
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Depending on the width of your room I would go with 60, 70, 80 or even 90° wide.
60° vertical seems good.
When Tom Danley was building the prototypes at home (he had a long narrow room), he found 50° to be good.
They certainly send the music power where its needed. Angled in on a dance floor for example..
Later others found in wider rooms that there was a sort of hole in the central image.
They were never intended for domestic hifi🙂
I didn’t really get that hole in my longer than wide room, but the 60s do a central image better, no question.
Going wider I think I would run into more reflected sound.
That’s would be my negative with say tractrix profile etc. The sound goes everywhere.
End up with sound absorbing panels everywhere.
Very room dependant though.
If you start wider you can always cut them down to narrower😂
I don’t think the drivers are that critical.
Danley has used different 5" and 12" over the years.
He’s going for SPL and hardiness in the field of course..
I understand that he spec’d the Lab12 sub driver.
Used it then spec’d again for a better cooling solution. More vent holes around the coil etc.
That’s a proprietary driver I believe, beast almost twice the W of the original Lab12
The new array JW Sound ones that they are developing are looking nice and overkill for a home address
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Big fan of the one on the right being named after an Iain M. Banks GSV
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Just rereading them all at the moment, love the mind/ship names. Got a few pages of Use of Weapons to finish tonight, Excession next
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Excession is great. You can think of it as an epistolary novel between spaceships.
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2.0 looks a bit bigger than it’s predecessor.
The arrayable one presumably has a trapezoidal rear like the SH50/60 so you can put them together for close to 100° or 120° coverage in the field.
That thing is a beast!
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Yes the 2.0 is bigger as it allowed the angle of the horn to be open up a bit more improving things.
Rear of the array one
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Yes. Welcome to even more angles😂
The hatches to load / repair blown cones/ drivers are a good idea.
Don’t see a hatch for the DC HF/MF.
Does the ‘untitled’ have space for bass?
I expect it takes 2 X 12" LF, which will get you to around 55Hz.
Add fast subs to suit taste.
The only MEH apart from Danley’s Jerichos etc to offer near full range in one huge box I know of were Mark100’s Syn11s on Diyaudio.
“B&C dcx 464 CD and four 4NDF34 4”, two Faital 12pr320 12"s, and two BMS 18n862 18"s.
So five ways…one horn."
Raw plots
~-6dB at 31.5Hz.
As a centre..
That’s normal speaker low. Not room shaker low.
I think he had low subs..
Yes, he went on to build sub ‘carts’..
Hell of a project!
Inspired me to build something more modest🙂
I figured if folk are putting that much effort into MEHs there must be something pretty special about them..
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What’s with the non-symetrical flare.to the right of the Untitled one? You can see it at the left along the top edge in the shot from behind.
Thanks Steve, interesting…Anyone using axi2050’s in these?
I only noticed it in the front behind pic.. thought it was my eyes😂
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I have used the Axi in my Joseph Crowe ES250 horns and replaced them with the BMS4592. The Axi uses a single (Titanium) diaphragm for the 300Hz to 20Khz range. That seems to be a bit of a stretch from what I experienced.
The DCX 464 and BMS4592 split that range over 2 diaphragms.
An extra amp is required (or more complication in a passive crossover) using the DCX or BMS.
Should have said that the BMS (and possibly the DCX, not sure as I haven’t tried one) require a digital crossover as the arrangement of the diaphragms requires a delay on the midrange to time align with the HF diaphragm.
Not so much of a problem in proaudio use when the speaker to target distance is way larger and way more variable.
No idea, it’s a prototype, but wondering if that’s the side you would have the other speaker in an array
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