I am thinking of building a "small" (8") subwoofer mainly for music. The horn designs are somehow appealing (mainly thanks to their efficiency), but I am wondering, how does it compare to a normal ported enclosure, bandpass or even a sealed, both in terms of sound quality and efficiency?
Which will give the deepest response with a given element?
Does the horn enclosure put higher requirements on the element compared to a ported? (Of course, the sealed is the most forgiving).
Which will give the deepest response with a given element?
Does the horn enclosure put higher requirements on the element compared to a ported? (Of course, the sealed is the most forgiving).
The horn, not the tapped variety, will probably have ten times the volume and need one tenth of the power.
Yes, horn designs can be finicky of driver/enclosure parameters. Horn Response is a good aid for designing them. Post up the T/S of the driver and I'm sure someone here will help you along.
It is fun to impress friends by connecting a 1 watt amplifier powered by a 9v transistor radio battery to my tapped horn to show off how much bass it can make, but I use sealed subs in my "serious" music listening systems.
It is fun to impress friends by connecting a 1 watt amplifier powered by a 9v transistor radio battery to my tapped horn to show off how much bass it can make, but I use sealed subs in my "serious" music listening systems.
I dont have a driver yet, but the amp is nearing completion; it is around 25W, based on TPA3123d2.
Only have an old recycled home theater sub for now, iss enough for that (I live in an apartment so I am not going to make too much noise).
Only have an old recycled home theater sub for now, iss enough for that (I live in an apartment so I am not going to make too much noise).
I have built a ported, a tapped horn and a front loaded pipe (horn with too small throat area) using the same driver.
The ported is about 200 liter, the tapped horn is 400 liter, the "horn" is 600 liter. The ported sounds well for being a ported box, probably because of the driver. The tapped horn sounds ok, louder than the ported but with the same character. The "horn" is a completely different story, it is loud, clear and with a very nice kick.
They all go down to about 30 Hz. A true horn going down to 30 Hz would be about 1500 liters. The ported is useable to 170 Hz, the tapped and the horn to about 80. A true horn would be useable to about 250 Hz.
The ported is about 200 liter, the tapped horn is 400 liter, the "horn" is 600 liter. The ported sounds well for being a ported box, probably because of the driver. The tapped horn sounds ok, louder than the ported but with the same character. The "horn" is a completely different story, it is loud, clear and with a very nice kick.
They all go down to about 30 Hz. A true horn going down to 30 Hz would be about 1500 liters. The ported is useable to 170 Hz, the tapped and the horn to about 80. A true horn would be useable to about 250 Hz.
More,
your link takes me to a completely blank post.
I can see there is a dropbox address in the code, but my security prevents me from downloading anything from there due to security risk.
Any chance you could attach your pics in future?
your link takes me to a completely blank post.
I can see there is a dropbox address in the code, but my security prevents me from downloading anything from there due to security risk.
Any chance you could attach your pics in future?
Two of the three links take me to diyAudio threads (no problems there) and the middle one (tapped horn) links to an external forum (again no problem viewing).
This is the first,
http://www.diyaudio.com/forums/subwoofers/224366-jbl-2226-ported-something-i-built-srx-boxes.html
and third,
http://www.diyaudio.com/forums/subwoofers/224225-jbl-2226h-30-hz-horn-i-built.html
Do those links work ?
http://www.diyaudio.com/forums/subwoofers/224366-jbl-2226-ported-something-i-built-srx-boxes.html
and third,
http://www.diyaudio.com/forums/subwoofers/224225-jbl-2226h-30-hz-horn-i-built.html
Do those links work ?
All links works for me in chrome and in internet exporer.
http://www.diyaudio.com/forums/subwoofers/224366-jbl-2226-ported-something-i-built-srx-boxes.html
HiFiForum.nu - DIY JBL 2226 tapped pipe
http://www.diyaudio.com/forums/subwoofers/224225-jbl-2226h-30-hz-horn-i-built.html
http://www.diyaudio.com/forums/subwoofers/224366-jbl-2226-ported-something-i-built-srx-boxes.html
HiFiForum.nu - DIY JBL 2226 tapped pipe
http://www.diyaudio.com/forums/subwoofers/224225-jbl-2226h-30-hz-horn-i-built.html
I believe all my pictures are png or jpg. There should be no security risks in allowing png and jpg. Maybe you should adjust your security a little?
The front loaded pipe layout can be used with different widths of the box. I have made an excel sheet that will give you hornresp values for a width and S1S2 length. You can use it with an 8" driver 🙂. This is an excel sheet so your browser should complain about the security risk.
It's "where" they are coming from.
Some authority declared that the Source could be "bad". The security system automatically "blocks" all output from a dubious Source.
Must be something in your PC configuration and set up Andrew (although I don't know what off hand).
I just used another Thread where the poster had dropbox for PDFs.
My security allowed the download of the PDFs from dropbox.
My security allowed the download of the PDFs from dropbox.
@ AndrewT
www security checkers are ok as such, but they often class ALL IP's on the same www as dodgy, even if for eg Only 1 really is, or has been ! They All get tarred with the same brush, that's why i don't use them. Good in theory, but prone to FP's.
Anyway, if you have several layers of defence in place, apart from a good AV, even they don't/won't catch Everything, or even near, you will be safe. I can visit the most infected www's & nothing bad happens 😉
www security checkers are ok as such, but they often class ALL IP's on the same www as dodgy, even if for eg Only 1 really is, or has been ! They All get tarred with the same brush, that's why i don't use them. Good in theory, but prone to FP's.
Anyway, if you have several layers of defence in place, apart from a good AV, even they don't/won't catch Everything, or even near, you will be safe. I can visit the most infected www's & nothing bad happens 😉
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