2'' dome fullrange

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andreaemme

Member
Joined 2008
#1
Hello, please may somebody suggest me a 2'' or similar DOME fullrange driver, or at least a sealed-back fullrange of such dimension?
I wasn't able to find any, even if exists something like Dayton RS52AN which is yet a mid-range.
Thank you very much
 
#3
#4
wolf_teeth said:
A little bigger, good to 1.5kHz...
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Bigger still, good to 4k...
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Maybe a few of these will trip your trigger:
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Wolf
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Thank you Wolf but I couldn't find what I'm lookng for there. All I ask is a driver just like Dayton RS52AN, dome or cone but sealed back, simply flat to 20 khz. Really I can't understand what it makes it so difficult to build a such driver, there are 3''-5'' cone driver able to reach 20 khz, whay it would be impossible for a 2'' dome?
It could be a turning point for an easy 2 way system using a subwoofer, as a FAST one.
I need something similar because I won't be able for a while to build anything with wood so I need a sealed back fullrange to work with an existing woofer in a tower in a speedy way.
Thank you.
 
#6
DickHertz said:
What you're looking for isn't going to happen. What you really need to do what you want is a co-axial driver but you won't find one that's in the 2" range.
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Indeed I'm not looking for just a 2'' driver, but just a sealed back fullrange (as an imaginary 2'' which I believed easy to find but not), size doesn't matter, 2'' was size of Dayton RS52 used as example of a sealed back mid range which I hope to find similar but full range.
 
#8
andreaemme said:
Really I can't understand what it makes it so difficult to build a such driver, there are 3''-5'' cone driver able to reach 20 khz, whay it would be impossible for a 2'' dome?
Click to expand...
Domes have a nasty dome resonance and it is difficult to bring it > 20 kHz for a 2" dome, without resorting to materials like diamond. Furthermore, dome tweeters and midranges have no spider to keep them under control at high excursion, so domes mostly are low excursion designs. A long excursion is necessary for a 2" driver to be usable at low frequencies.
 
#9
Variac said:
So you've abandoned the dome requirement?
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Sure, maybe I said it badly, I'm looking for a sealed back driver, cone or dome doesn't matter, as it doesn't matter low extension, only high.

TBTL said:
Domes have a nasty dome resonance and it is difficult to bring it > 20 kHz for a 2" dome, without resorting to materials like diamond. Furthermore, dome tweeters and midranges have no spider to keep them under control at high excursion, so domes mostly are low excursion designs. A long excursion is necessary for a 2" driver to be usable at low frequencies.
Click to expand...

It's just for this reason that I don't understand, there are dome midranges but not dome fullrange, not even low not-extended. If there's a dome midrange, why can't there be a similar driver just with a greater high extension?
Yes I said it badly, I'm not looking for a fullrange, just a sealed back mid-tweeter.
 
#11
Closest I can find is a Visaton BF32, only 1.3” but does 150hz to 20khz (supposedly) and they are cheap at around £15, four versions to choose from. No idea what they sound like though.

Search | Visaton

Edit - unfortunately on further investigation it does not look to be sealed, sorry.
 
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#14
Just another thought, if you have a 2" open back full range (or the Visaton one I linked) they should work in a small box, you can get plastic hobby boxes/jars, cut a hole in the top, seal and you then have a sealed speaker -

Example -

Clear Plastic Storage 250ML Jar Round Container Spring Black Screw Top Tea Sweet | eBay

based on this design using the BF32 the volume they are in is sealed and slightly stuffed and has a size of 40x47x124mm = 233cm^3.


Edit - sorry forgot to add link to the tabula design.


TABULA | Visaton
 
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#18
Why do you want a dome? What do you mean by fullrange? You already stated it should go upto 20Khz. Should it also go down to 20Hz (probably not)? What's you use case?

Closing a normal full range driver will indeed be the easiest solution and will give you quite some options to work with. Some polyfill will help dampening any reflections. You could also 3D print a more elaborate shape to close the driver.
 
#20
use something like a sb65 or an fr88 driver and make your own sealed back enclosure, there's many options for back if you don't want to use stuffed PVC tube, eg:

cupwood2.jpg
 
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