Sorry if I sounded a bit on the bitter side there and I'm not saying that either of those designs are bad, compared to the majority of the speakers out there they are great, I'm just saying that once one knows how to properly manipulate the Hornresp program comming up with something far better is a piece of cake, but every time I've tried to share a design on this forum negative know it all people tear it apart with unsubsatiated claims and make me wish I had never shared anything. I guess maybe I'm turning into one of those negative know it alls myself now, but I was just trying to share my excitement over this driver and of course I was being shot down by negativity and doubtful comments and my persecution complex kicked in again so being overtired as I was I pouted and lashed out. If someone is seriously interested in the designs I have come up with I would be glad to share them and if they have legitimate questions I would be glade to answer them but I was excited and trying to share my joy and I could feel the whole conversation turning toward a you're stupid and you can't possibly know what you're talking about tone (probably half in my imagination) and it stifled all my enthusiasm.
and if you look on Sketchup's uploded models my username is Hornman and I have several more designs uploaded there.
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It took me a while to catch on with hornresp but I found that if you read the entire help file it help alot. and then if you aren't sure what a field means when you hover over it it is described on the bottom of the window. If there is a spec you don't have or understand simply double click on it and most of the time it can be derived from the info you do have.
Well most of what I had was on the HDD that died and most of the cabs are at Doug's shop but I'll share what I have. Oh BTW the measurements on the Sax might take a day or two I'm a bit busy for the first time in ages.
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I'm liking your creative designs; rear horn loaded line arrays. Of particular interest is the curved array and the cross four by four array.
So, which one have you built and do you notice any lack of focus to the music or distortion in the treble? Thanks for sharing.
The only one we have built with this driver so far is a bookself design with one driver, so I haven't had any listening impressions with the arrays so far. The treble in that design was second to none, but of course it is just one driver so there wouldn't be any of the comb filtering I assume you are refering to. I wish the pdf for the driver had some info on off axis response so I could use that in designing the arrays. The drawings I have so far a re just rough ideas of what my Hornresp models would look like. I have much tweaking to do before I have a final design but the potential is amazing.
I like the 4 driver vert array, you could do 8 or 9 max vertical assuming yours are the only ears listening to it at 1 spot. Horizontal multiples will be horrbile, but go and build it. I learn best the hard way. Wisdom comes from bad choices. Rear horn should help add some bass assuming you block all above 200hz from coming out the mouth.
Cone area is limited (even in multiples), but using an active crossover or run wide open but at low volume levels they could be magical.
I like your spark. Build and report back to us.
Norman
Cone area is limited (even in multiples), but using an active crossover or run wide open but at low volume levels they could be magical.
I like your spark. Build and report back to us.
Norman
Well hornresp acurately many of the anomolies you're warning me to watchout for and as for volume with enough drivers in a properly loaded enclosure this things will put out all the volume you can handle. The Max SPL feature on hornresp takes into acount the power handling and xmax of the driver as well as the combined response of the horn and the direct radiation. I guess I haven't given quite enough attention to the midrange comming from the horn and how it will effect imaging and clarity but with a bit of stuffing and enough twists and turns in the horn I think this can be dealt with effectively. As for the horizontal arrays I would like to try doing some off axis measurements to see if I can set them up in a complementary way instead of an interfering configuration so as to increase dispertion. But it sounds like you've had some experience in this area so any hints or warnings would be welcome. I wondering if it is possible to array them in such a manner that at the angle the high frequency rolls off from one driver the next might pick it up and thereby great a whole room sweet spot. I realize if this is possible it would be a lot of work and would have to be designed on a per room basis but I'm currently an electronics engineering student and I love this stuff so if it's possible I'm up to the task and excited to try it. So please continue with any further thoughts as long as they are educated and specific. Thank you for your input so far and I apologiz to anyone who's throat I jumped down I was just reacting to past negativity i have encountered and it wasn't very constructive on my part.
here are the measurements on the Sax let me know if any crucial info is missing.
here are the measurements on the Sax let me know if any crucial info is missing.
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Of course you can fib some of the measurements to make it easier to build I just made the drawing to see how it would look. As long as nothing changes more than 10-15% the response shouldn't be hurt too much.
Then again if the horizontal dispertion of the driver is sufficiently wide on it's own the array may prove entirely unnecissary. Again these are just ideas I'm messing with at the moment I will do much more R&D before recomending an actual design. All the test equipment I will be getting from school should help me a bit.
I've heard the Audience A3 3" driver array (4 vertical on front and 4 vertical on the rear). They were filterless, so whatever "comb filtering" was going on was not subtractive to the music at about 8 feet. Perhaps, if I listened to the speakers for a few days I would hear it. Also, I've heard a Macintosh speaker with lots of what appeared to be 1" tweeters lined up both verically and horizontally and did not hear distortion that ruined the listening experience, but I did detect a certain fuzziness to the treble. Probably they were using too many tweeters.
The one inch TB probably has a 1.5" or so, center to center spacing, thus the comb filtering will be higher up in frequency. Another possibility is to low pass some of the drivers in addition to curving the array (as in your drawing).
Please keep us posted on your builds.
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