Aura NS3-193-8A

castlesteve · 6th May 2007, 11:23 PM

Are there any designs out there preferably floorstanding for the 3" Aura ns3?
Steve.

http://www.madisound.com/cgi-bin/ind...4.1118&pid=100

gmilitano · 7th May 2007, 01:03 AM

How about this one?

Jim Griffin · 7th May 2007, 12:43 PM

I designed a MTM MLTL with the Aura NS3-193-8A. I used one of the small High Vi tweeters between the drivers. Using Martin King's spread sheets the MLTL came out to be 42" internal height with a 3.5" x 5.0" cross-sectional area for the insides. The drivers were located at a composite distance of 6.3" from the top while the port was at 41" below the top. The port tube is 1.75" diameter and 4" long for this configuration. Nothing like the bouncing cones of the NS3s as you crank-up the volume. Amazing bass down to near 40 Hz for this small floor standing configuration.

A MTM or bipolar configuration makes sense for these drivers as you achieve a higher sensitivity (low 80's dB SPL) than for a single NS3. A single NS3 with baffle step comp would run into the mid to upper 70's dB SPL so dynamic range would be more limited.

ChestofFur · 16th January 2011, 09:30 PM

Hi Jim,

Would it be out of the question to post your crossover for this design?

wolf_teeth · 17th January 2011, 07:28 AM

Quote:

Originally Posted by ChestofFur

Hi Jim,

Would it be out of the question to post your crossover for this design?

Jim Griffin's Aura T-line 2-way - Techtalk Speaker Building, Audio, Video, and Electronics Customer Discussion Forum From Parts-Express.com

Enjoy!
Wolf

ChestofFur · 18th January 2011, 12:10 PM

Thank you, sir.

ChestofFur · 11th September 2011, 02:10 PM

Made a pair of these using cardboard and toiletpaper rolls for the ports. They look damn ugly but I'm going to try to pretty them up with some wallpaper. They sound fantastic. I'm rockin' out to a great jazz organ solo as I write this.

I used the Aurasound NT1-204-8D 3/4" instead of the specified tweeter. Madisound helped me with changing some of the crossover values.

The required resistor values were hard to find so I bought the closest values I could find.

sayrum · 11th September 2011, 07:48 PM

wow, cardboard! i would imagine that cardboard resonates terribly...

uliguitar · 11th September 2011, 09:05 PM

Quote:

Originally Posted by sayrum

wow, cardboard! i would imagine that cardboard resonates terribly...

...or maybe the membranes are standing still and the enclosure is moving to front and back, because it weighs nothing. New speaker technology???
You have to commercialize that...

good night Uli

kristleifur · 12th September 2011, 09:44 AM

Quote:

Originally Posted by ChestofFur

Made a pair of these using cardboard and toiletpaper rolls for the ports. They look damn ugly but I'm going to try to pretty them up with some wallpaper. They sound fantastic. I'm rockin' out to a great jazz organ solo as I write this.

They actually look awesome!

6th May 2007, 11:23 PM	#1
castlesteve diyAudio Member Join Date: Nov 2003 Location: N. Virginia	Aura NS3-193-8A Are there any designs out there preferably floorstanding for the 3" Aura ns3? Steve. http://www.madisound.com/cgi-bin/ind...4.1118&pid=100

7th May 2007, 01:03 AM	#2
gmilitano diyAudio Member Join Date: Apr 2004 Location: Winnipeg, Manitoba	How about this one? __________________ DIY Audio Projects [ 10" DIY Subwoofer \| FE127E Sealed Bipole \| [ LM3886 Chip Amp / Gainclone \| K-12M Tube Amp Kit ]

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7th May 2007, 12:43 PM	#3
Jim Griffin diyAudio Member Join Date: Jun 2003 Location: Tennessee	I designed a MTM MLTL with the Aura NS3-193-8A. I used one of the small High Vi tweeters between the drivers. Using Martin King's spread sheets the MLTL came out to be 42" internal height with a 3.5" x 5.0" cross-sectional area for the insides. The drivers were located at a composite distance of 6.3" from the top while the port was at 41" below the top. The port tube is 1.75" diameter and 4" long for this configuration. Nothing like the bouncing cones of the NS3s as you crank-up the volume. Amazing bass down to near 40 Hz for this small floor standing configuration. A MTM or bipolar configuration makes sense for these drivers as you achieve a higher sensitivity (low 80's dB SPL) than for a single NS3. A single NS3 with baffle step comp would run into the mid to upper 70's dB SPL so dynamic range would be more limited.

16th January 2011, 09:30 PM	#4
ChestofFur diyAudio Member Join Date: Nov 2009	Hi Jim, Would it be out of the question to post your crossover for this design?

18th January 2011, 12:10 PM	#6
ChestofFur diyAudio Member Join Date: Nov 2009	Thank you, sir.

11th September 2011, 07:48 PM	#8
sayrum diyAudio Member Join Date: Jun 2011	wow, cardboard! i would imagine that cardboard resonates terribly...

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