Aurasound NS3-193-4A 3" Extended Range * 4 ohm * Silver Cone

I have used these guys for a variety of projects. I first used them for dipole line arrays for my home listening room. Then I built personal monitors for musicians using ABS pipe. The most ambitious project was a pair of omnidirectional speakers for a church, each of which used 9 of these Auras arranged on a quarter hemisphere (approximated with flat facets). It needs some serious EQ because that arrangement results in a falling frequency response, but once EQ'ed, the frequency response is flat from 60 Hz to 8 kHz everywhere in the room. It's a good approximation to a point source, resulting in a coherent sound field that is clearer and much less confusing than widely-spaced forward-firing speakers.

You can get some serious volume with 18 of these driven by a big amp.

The omnis worked out so well, and I got so many compliments, that I then replaced the stage monitors with a similar 9-driver omni.

I dont know why this site has abrely ANY reviews... maybe because everyone knows how good madisound and their products are, but thsi Aurasound NS3 is a MUST GET and perfect for a wide spectrum of projects. YOu cant anything quite this size with such a low frequency response, and it can be manipulates to go even lower. Makes a great range of sounds and hasn't flatted out on anything i tried it on. The excursion on thsi thing is also very fun to watch! :D

They're not kidding when they say this has amazing bass for a 3" speaker. I built a set of speakers based on the Madisound recommendations ("F3 of 85Hz: 2 to 3 liters sealed and stuffed") using a 1' length of 4" PVC pipe (2.3 liters) and they sounded great! Then I got ambitious and built a ported system: 4.3 liters (260 cu. in) net with a 1.5" port 9.5" long. The "cabinet" is an 11" length of 6" PVC pipe. The calculator says F3 is about 47Hz! I added a 4 ohm tweeter (not from Madisound, sorry!, but my next build is going to use the Hi-Vi TN25). I used a 5000 Hz 1st order crossover (Madisound 0.1mH inductor and a clearance 10 microfarad cap.) They sound absolutely great! They don't take much power to drive to reasonable listening levels and look way cool.

They're not kidding when they say this has amazing bass for a 3" speaker. I built a set of speakers based on the Madisound recommendations ("F3 of 85Hz: 2 to 3 liters sealed and stuffed") using a 1' length of 4" PVC pipe (2.3 liters) and they sounded great! Then I got ambitious and built a ported system: 4.3 liters (260 cu. in) net with a 1.5" port 9.5" long. The "cabinet" is an 11" length of 6" PVC pipe. The calculator says F3 is about 47Hz! I added a 4 ohm tweeter (not from Madisound, sorry!, but my next build is going to use the Hi-Vi TN25). I used a 5000 Hz 1st order crossover (Madisound 0.1mH inductor and a clearance 10 microfarad cap.) They sound absolutely great! They don't take much power to drive to reasonable listening levels and look way cool.