Why ? It covers the required bandwidth and in domestic settings will be very low on distortion.
edit: When I was going for a full horn system I found it very difficult to find anything to cover the ~400Hz to ~1200Hz region between the 'typical' 80Hz midbass horn driven by a 15" driver and the 'typical' 1" CD tweeter horn. I ended up going back to 15" direct radiators up to 1200Hz. (am halfway through a synergy project that can sit on top of my old edgar style midbass horns and cross at 300Hz)
Rob.
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This is the classic situation where the roll off of the driver is compensated by the way the horn tends to beam as the frequency increases.
It's classic because it can work pretty well, I have nice memories of the old JBLs like this.
But I plan to use a more modern, closer to constant directivity horn so the PRV is not ideal, despite some nice aspects. Qes could be lower
Certainly doable, ideally I would prefer not to waste the power or require the extra components.
Hi Rob
When people propose novel solutions sometimes I think "just answer the question" and sometimes "hey, I never considered that!".
I must say I had never considered such a driver, William is correct that it's ridiculous for domestic use but it could be fun.
Unfortunately, XKR is correct too, they are not cheap, or common even in the USA where they are made.
I have never even seen a mention of one in Australia, let alone seen one for sale.
And ridiculously expensive to send from the USA because it's so heavy.
However- it does provide an excellent example of what a purpose built mid driver should look like.
Very serious magnet, aluminium ribbon VC, flux stabilisation sleeve, just as I hope to find in a more practical driver.
Best wishes
David
A DSP PEQ will achieve exactly the same thing without wasting power or using extra components.
Yeah, this is the heart of my current indecision.
The architecture of the whole system is up in the air.
A full 7.2 home theatre system where each speaker is active DSP multi-way is potentially a lot of cables, amps, DSP and complexity.
There are bus based systems but they are still a bit immature.
And I still have some vinyl.
I can see it will be all DSP in the future but I'd like to keep the speakers DSP free for the moment.
Mainly in the interest of modularity.
Best wishes
David