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I just read about these speakers and am most curious about them. Do anyone here have a pair?
If so please share your experience with them.
Follow Ups:
Since these were just announced, doubt anyone has/has heard them
I heard Rick Craig's (Selah Audio) Game Changer CBT array. It's a smaller version and developed with D.B. Keele. They do not sound like line arrays.
There is a lot of serious engineering in these and the standard criticisms of line arrays really don't apply. I hope Presto or someone smarter than me can chime in.
Four things about line arrays:
1- they are a taste. You either love them or hate them.
2- line arrays are notorious for coherency issues. Any time you have more than one driver there is a formula for coherency distortion. Multiply that by 24 drivers per channel and your distortion potential is through the roof.
3. Looking at the frequency response curve it looks like you are not going to need a sub but a WOOFER. It starts rolling off at 150Hz. If you do go with a subwoofer you WILL need two. At that range it does become noticeable between channels as well as being difficult to integrate in that range. You will need more of a passive filter than plate amp.
4. On a personal note, reading that page there is a "lotta bull" being slung and very little testing info to back any of it up. One graph with a FR curve that looks like a Manhattan skyline is pretty thin testing. That's a BAD FR graph!!!
Line arrays can be a very special speaker system. However two very important things come into play. The room and amp. You need a listening area that is suited for a line array and an amp that can handle the impedance drops and dips without blowing up.
As a coherency freak, I prefer tall full range electrostatic line sources , but HP's Scaena's sounded pretty darn nice - especially given what was driving them. The ribbons take over around 5 khz and the depth charges, below 80 hz.
Ah just bustin them!
But really the fire extinguisher was funny!
Obviously that setup is on a higher level then DIYing some drivers. And as I have said it's both room and amp dependent as well as being a taste.
But if you have the cash to play then it does make it more fun to try.
Tomorrows hike - Mormon trailhead
A man I know had Krells driving big Dunlavys using some weird cables that had paper as one of their ingredients. The cables caught fire during playback and he had to call the Fire Department!
It's never too late to turn back the clock.
But really the fire extinguisher was funny!
After the Big Fire that ravished his 1887 Victorian registry house back in the late 80s, he was very cautious. Fortunately, it had been a long time since he had any Jadis amps there which have literally burst into flames! You'd think they were designed by Dr. Emmett Brown. :)
One thing nice about line sources is there is no concept of ideal "tweeter height". Sitting or standing makes no difference. And when they are dipolar, the same holds true for being in front or behind. :)
why is the fire extinguisher behind the stereo and not in front of it?
She made a good point!
Putting it behind them doesn't affect the sound quality, while still providing easy access. :)
And that was advice coming from someone reading the instructions on Bear repellent spray for tomorrows hike. The 9mm is obviously of no use there!
where the Rangers require you carry Bear repellent.
I had one holstered. :)
We are hiking Mormon Grove Trailhead in an hour. The rangers don't care what you do as long as you don't call them. They just send the helicopter to pick up the body. And I'm not kidding! That's what I love about Arizona.
During tourist season we loose about one or two a week due to heat and getting lost in the desert. And we DO loose a few experience hikes due to accidents.
I use Route Scout and Gaia offline GPS tracking programs to get me back to my car. There is no cell service so if you get in a fix - no one is coming to get you. Unless your partner hikes back out and drives until they can get cell service.
I wonder how the system sounds?
https://youtu.be/a-njcAia6nY
Edits: 04/28/17
catastrophic failure is a common theme with Jadis. :)
line arrays are very difficult to test. They are pretty easy to pull off, however. A single microphone position is not equidistant for all the drivers, so every measurement you do (especially swept sine based measurements) will yield non smooth results. This is true for panel speakers as well as spaced dynamic driver. However, This "line array" is a little different, too, as all drivers are not receiving the same level signal, The idea is to create a "wave front" and this kind of design does do this.
The lobbing effect is measurable but not really audible on tradition line sources because of the Hass effect - but note that ideally we are going to do a floor to ceiling line source like Roger Russell's IDS25.
I've listened and enjoy many line array and ribbon speakers over the years and owned a built a few. The McIntosh XRT series (XRT1 especially) sounded very nice as lines sources - And the IRS system is legendary.
Line sources do have a different dynamic, and often lead to relatively low crossover points (150-350Hz) to woofers. Line sources minimize the energy in floor and ceiling reflections.
"The hardest thing of all is to find a black cat in a dark room, especially if there is no cat" - Confucius
Mr Keele is much more of hands on, jeans wearing scientist than a marketer. His demos of the larger unit at shows are more of a engineering measurement experience than a listening show.
He has something unique and measurements hold up the design goals.
But as you say, people need to listen first to see if it is to their liking and expectations, just like point sources, horn systems, single driver systems .....
From Stereophile an image
As "we" have said, line arrays are a taste like any other "non traditional" design.
The OP should seek out a Line Array forum and start asking questions before diving in. Like will my amp be able to play these without blowing up.
However again I will stress that these WILL need a "woofer/sub" pair. Not single but paired.
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