Hi all,
I am looking for a plan of a 15" bass horn that plays 40/50Hz-200Hz and should be efficient.
Size is not an issue but I would consider something that is not very large and not very difficult to construct.
I am looking for a plan of a 15" bass horn that plays 40/50Hz-200Hz and should be efficient.
Size is not an issue but I would consider something that is not very large and not very difficult to construct.
Probably, you could improve efficiency choosing a driver with higher efficiency like 99dB/2,83v/1m and also in case you want to use just a pair, you could buy them 4-ohm driver so you can get more SPL from the same amplifier output voltage.
I am eventually planning on trying a Quarter Pie Bass Horn for the same range. Had a problem getting search to spit the thread out on here, as there is a thread somewhere by Claude...but here’s a link to the thread I first found over at the Klipsch Community site.
Quarter Pie Bass Horn: Measured FR, How2Build, and Hornresp - Technical/Modifications - The Klipsch Audio Community
Quarter Pie Bass Horn: Measured FR, How2Build, and Hornresp - Technical/Modifications - The Klipsch Audio Community
Had a look at it, response is good and design is very simple.
Would like a rectangular one but I am very tempted 🙂
Can the Quarter Pie Bass horn be used for PA applications?
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University Classic rolls off higher than 40 but is a good (and bulky) horn - its throat has compound angles so could be tough to build -
in that range and at less bulk, I think 2 Karlson boxes might beat one Classic - but the horn would better protect the driver
from the elements, etc.
JBL M151 2.83v 1 pi University Classic horn
you could ask at BFM's forum for something which would reach 40 and buy a plan
If you could locate a working drawing for the Vitavox Thunderbolt - it looks
very potent in the kick drum region with lots of output and very low excursion
PA work these days may require more xmax than what old school high efficiency low mass woofers typically had/have
One of the most practical solutions would be Jim Bell's Single Sheet 15
in that range and at less bulk, I think 2 Karlson boxes might beat one Classic - but the horn would better protect the driver
from the elements, etc.
JBL M151 2.83v 1 pi University Classic horn
you could ask at BFM's forum for something which would reach 40 and buy a plan
If you could locate a working drawing for the Vitavox Thunderbolt - it looks
very potent in the kick drum region with lots of output and very low excursion
PA work these days may require more xmax than what old school high efficiency low mass woofers typically had/have
One of the most practical solutions would be Jim Bell's Single Sheet 15
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It also does not reach down to 40 Hz.
Getting to that range in something "not very large" suggests that some sort of higher-order design is needed, like an offset MLTL. What 15" driver are you planning to use? If you don't have one in mind yet, what's your budget?
Sorry, didn’t know you wanted it to be portable for PA use. I agree it appears ackward in that sense. It was also designed with corner use in mind as I understand it and as others said, it won’t go quite as low in other scenarios. There are some people using it for home hifi that have stood them up and still gotten good response down to below 50Hz, or so they say.
I could live with 45Hz, it does it @ 101 db. I have a Beyma15G450 and a DAS15G. Do you think an optimized version can work, even if it means changing the fold and making the cabinet rectangular and larger?🙂 It seems I have to accept that its going to be a very large cabinet.
Your suggest of MLTL is welcome.
check the space used in the simulation. It's an importante criteria do compare simulations and designs.
Sometimes a SPL response looks more efficiency because it was simulated at differente space so the comparison isn't far.
110dB looks like 1pi
Sometimes a SPL response looks more efficiency because it was simulated at differente space so the comparison isn't far.
110dB looks like 1pi
I'll have to "run the numbers" but yes, a FLH that's capable of 40 Hz will be larger. The CV EL36 was capable of 40 Hz - if mounted in a corner. That's the kind of size that we're talking about.
The offset MLTL cabinet will be a LOT smaller, but also a lot less efficient. It's efficiency should work out to be around that of the raw driver.
Not so good, it does 45Hz @ 95dB and 50Hz at 99dB
So, XOC1 TH18 with 18LW2400 seems to be flat up to 200Hz, can he or someone else do the same for the 15"😀😀😀😀
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There's a difference between "flat" and "usable". I don't think anyone uses the TH18 that high...
with 6 stacked you could do flat(ish) 200hz but there are some resonances in the higher range that sounds ugly, so you need proper EQ to get rid of the ugly stuff. you can put a 15 in the same design, it will work but you need a very good high BL driver for it to make it happen.
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