Danley Sound Labs SBH10
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- čas přidán 27. 01. 2014
- Danley Sound Labs is the exclusive home of the designs of Tom Danley. The SBH10 is the latest innovation and tool from Danley Sound Labs. Though it has a column form factor, it actually it is a horn with an effective path length of 28ft and thus gives you all the benefits and performance you come to expect from of a horn and Danley Sound Labs. We invite you to take a closer look.
www.danleysoundlabs.com
/ danleysoundlabs - Věda a technologie
Outstanding! We can surely claim that these guys, as speaker builders, TRULY think outside of the "BOX", even though this is what they do. They build boxes. Finally, a company not afraid to be different. Not a follower. Not a copycater but an innovator, designing and building novel products based on solid scientific foundations... AND THEY BUILD IT HERE. IN AMERICA!
Unless someone has experienced it for himself, it is difficult to express and demonstrate how REAL a well-designed horn sounds like. My son plays drums. The dynamic range and frequency range of a drum kit is just phenomenal. A good horn speaker system can sound like a real drummer playing his drum kit just a few feet away. You hear it and you feel it, in your gut and in your lungS with the same dynamic range that only very high efficiency speakers can provide.
JUST SAY NO TO THE TYRANNY OF LINE ARRAYS!
JOB WELL DONE GUYS! JUST KEEP DOING IT.
Thank you so much for sharing! Please, continue the University activities. Tell to Mr. Danley we are wating for his book. Let´s think all together outside the box!
Definitely an interesting and innovative design. However I must point out that the claim put at 3:08 - 3:22
"An interesting property of such an ellipse is that any line that you draw, starting at the center going out to the curve and then back to the major axis, will have the same length as one half the major axis." is bending the truth somewhat. You must use two mirrored parabolas with the focus point in the ellipse center to get that property. Furthermore, the parabolas would reflect the sound wave in the correct direction towards the vertical line, where the ellipse tends to concentrate the sound near the ends. Please use this idea in the mk2 model ;-D
True, furthermore the ellipse has two focal points that merge into one for the circle. A compression driver placed at one focal point in an ellipse would concentrate sound creating a point source at the opposite focal point. (I'm not sure what happens at the centre of an ellipse).
To make varying radii of wavefronts you have to use two slightly hyperbolic sections mirrored about a focal point. You could use elliptical sections but your wavefront would converge into a single intense point and then diverge again (maybe I could make a weapon or long range audio transmitter this way - the acoustic equivalent of the magnifying glass ant fryer).
To put a parabola, ellipse and hyperbola into categories.
Parabola: The set of points equidistant between a point and a line.
Ellipse: The set of points equidistant between a circle edge and a point inside the circle.
Hyperbola: The set of points equidistant between a circle edge and a point outside the circle.
(distance measured at right angles to line or circle edge in either case).
Great explanation of a very complex subject.
Great video! Really enjoying these explanation episodes. Its great to see a company taking such bold steps away from the norm in the pursuit of sonic excellence. I look forward to seeing more on some other of your products maybe? Regards, Ed from the UK.
I don't know why they are saying it's an ellipse. It's actually two intersecting mirror image parabolas about their focal point in order to reflect the waves in parallel lines of equal length.
What it says at 3:08 is true but does not satisfy angle of incidence = angle of reflection so the sound wave would not reflect back at the line normal to the centre line, but rather take the longer path closer to the mid-point of the exit slot. EDIT: actually I've remembered it's not true, the property is that the distance from one focal point to the other, drawing a straight line to the edge and rebounding it to the other focal point is the same, regardless of where on the edge you draw the straight line to.
I know DSL are smart enough to know this so perhaps to make it harder to copy??
An ellipse has two focal points and mounting the compression driver at one will just re-radiate as a point source at the other. I'm not sure what happens if you use the centre. Perhaps some sort of converging wavefront.
Mirror imaging an ellipse section about one focal point will produce a converging wavefront in this design. It would be fun to see if you could create an acoustic "laser" that would focus the soundwave, creating a concentrated "loud zone" at a certain distance from the speaker. I know sound and light aren't identical so I would be surprised by this acoustic behaviour.
To create a slightly diverging wavefront you would need to use two mirror image hyperbolas about their focal points. The closer the hyperbola gets to parabola, the narrower the coverage angle in the vertical.
These arrangements are for symmetric vertical coverage angle from one paraline element.
I'm not sure exactly the shape or driver off centering to produce down-angle and up-angle depending on where the element fits in the array.
great explanation, great product. What will those guys at Danley come up with next!
This sounds very interesting, The idea of getting the sound straight to where you want it(seating area) and away from the walls and reflective surfaces, with minimal volume drop from front to back.
Giving the wide horizontal coverage of the SBH10 how well does it work for a stereo setup (left right mains) Is it well suited for such applications or are they meant to be used as stand alone center speakers. For a live band setup which subwoofers would best supplement the low end.
Best off the world
Civijas radio Sabac ...in the world as well... ;-)
Nice
Could we stack 2 of these on each side of the sanctuary?
This is genious, there is no need for a lot of electronics in this, you could use cheeper drivers and you would in a home situation get a huge sweetspot. If the speakers are tall enough. Furthermore they could get placed right in the corner of the room. And sound like single point speakers. I want this!! Would it be ok if i "Copy the design idear and build a set for my self?
If my math is right, this speaker would go to abot 500-600hz? if i dont stretch the speakers to mutch, i would propably go with an H baffle 10" base for these.
But why only 500-600hz? Do you rely on the compression driver or a normal speaker? That thing looks big enough to fit in some 1/4 wave of a lower tone. Actually if it looks that long it may even get polarized patterns at lower tones i guess. Maybe i got something wrong in my understanding, I cant say for sure. Afaik once you go big enough with a speaker (for example a 12 inch driver) you even start getting polarization at high frequencies.
All in all my bet is that thing can go pretty low if you put in a driver that can do that. I mean the 1/4 wave at 1,5m is at about 230hz. Theoretically you could expect some sort of action down to that frequency. If the opening is 1,5m tall. Ofc you cant expect much sensitivity when the coupled Volume aint big enough. But there is a good chance it can go that low at a usable loudness.
@@byo4648 I wanted a small speaker and had the compression drivers. At that time, I was in to Linkewitz Lab base design and had 2 prebuild base sections ready. The horns were fun to experiment with and I learned a lot, but they were inferior to a good horn in sound in my opinion.
What you are proposing might work, but I fear that a 12” woofer in this configuration will need a lot of correction and a massive horn baffle.
I would be very interested in seeing another version of this concept.
Este equipo no llega a mexico presios
It´s tall and skinny, just like me, but unlike me it's not a human, it´s a Horn