Small cheap ones. Sorry, but 180Hz is not the range for a sub; it's in the range of a woofer (or, even, some midranges).
What's the application?
What's the application?
My speakers midrange starts at 110hz (VMPS FF3SRE) I cant help but think of the "Bose Woes", those little cubes only respond to something like that. Bose has a habbit of not making their specs as easy to find as almost any other speaker in the world, and for good reason...those specs are pretty scary.
Sounds like you are trying to integrate with some satellites? As Kr4 mentioned most true subwoofers are designed to operate within frequencies no higher than 80 Hz. There are many subwoofers that will have a range to 150Hz - 200Hz that are designed for satellites or limited range smaller speakers. The trade-off may be low end extension but at least you will have some reach into the lower frequencies, about 40Hz-50Hz, to balance out smaller speakers
You will probably be limited in options but if you do some searching, I am sure you can find one to fit your application in both passive and active units.
Hello, Not only do cheap ones go to 80hz but good ones too. That is where my woofer system is crossed over at. You may see them in "my system". They are not "your average bear". Good subs require a bit of surface area, especially if they are going to intergrate with electrostatics. It also goes down to 20hz quite well. I think that good subs should be capable of higher freq. They intergrate easier if they do with any speaker system.
In my opinion if you're crossing over that high you should have stereo subwoofers, and you should place them symmetrically near the main speakers.
I certainly don't have a vast knowledge of all that's available in the subwoofer world. The only two subs I know of that go up to 180 Hz happen to be ones that I'm a dealer for. Shoot me an e-mail if you'd like to know what they are. I'm sure there are others that I'm not aware of.
Do you have any inclination towards building your own subs? That might open up some interesting possibilities for playing around with low frequency radiation pattern control.
Best of luck with your project,
Hi Kal yeah sorry that 80 hz was a typo. I do in fact crossover my woofer system at 185hz. Now the question is what makes someone call a subwoofer a subwoofer? Should I call my sytem a subwoofer, since it goes to 20hz or as I presently call it a woofer system since it is crossed over so high? If your system is capable to 20hz but you are not using what is commononly referred to as a sub ie: 12'-18"+ drivers in a mono or stereo configuration, do you effectivly have a built in sub? What if if you are crossing over (like myself) your low freq speakers at 185hz (or perhaps 150hz, 110hz or 90hz)? What about full range speakers that are cabable to very low freq, but are not using a sub, is it OK to say that we are listening to subs because you have 20hz or so? Or does a subs features mean that it is limited in freq to a low number (and what would that number be?) and must it be seperate? How many full range speakers do not need a sub?