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Old 3rd September 2011, 10:51 PM   #1
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Default Aura NS-18 designs

I was looking into some well proven designs for this bad boy.I will impliment them into a 2ch music system as well as HT.I was originally looking at side-fire fin a 3 piece 2ch speaker.
Anyone try the Aura and what was your impression.
thanks
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Old 3rd September 2011, 11:01 PM   #2
sreten is offline sreten  United Kingdom
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Hi,

Specs indicate its a sealed box driver, box should be 1/2 to a 1/4 of Vas.

rgds, sreten.
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Old 4th September 2011, 01:15 AM   #3
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by mclsound View Post
I was looking into some well proven designs for this bad boy...
Anyone try the Aura and what was your impression...
Hi

I've designed a sub for a friend and the impression was awesome:Find a couple of pictures here:

aurasound ns18

b
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Old 4th September 2011, 01:28 AM   #4
Pallas is offline Pallas  Pakistan
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Keep it simple: 3.5-5 cubic foot closed box, 800-1k W power, EQ as needed.
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Old 4th September 2011, 12:04 PM   #5
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I was told a 5.8 cubic foot -vented to 20hz and you all say sealed.This is why I asked Thanks Sreten and hello again Bjorno.Pallas,I would like to keep it simple.This is for mostly 2ch.I was thinking W,MW.MTM,MW,W and sidefire the 18's.Someone suggested I look into Hypex amps but I have never heard them.These will be big and heavy and will try to build it in 3 pieces(wofer/sub-MB,MTM & woofer/sub.I have all the drivers other than midbass and the 18's(on order)..I have some 8" Volts but find them rather light(great for CC and surrounds)I will use my dual ATC mids and SS 9700(front and rear)tweeter and my AT 12's..the 8" Audio Tech's will cost more than the subs..I can get 10" Volts for a good price(not sure how they will image)
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Old 16th September 2011, 08:29 AM   #6
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I am looking into a Bryston 10bLR to cross the Aura's around 40-50hz.
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Old 21st September 2011, 12:02 PM   #7
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by mclsound View Post
I am looking into a Bryston 10bLR to cross the Aura's around 40-50hz.
Hi,

Then you need designs that would perform good and extended below and IMO not requiring to much EQ:

Enclosed are suggestions of slot-ported boxes for the Aurasound NS18-992-4A driver where the first shown is if putting the driver into a 5.8 cubic foot tuned to 20 Hz.

b

PS: The Hypex DS 4.0 is IMO a very good amp for subs.
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File Type: jpg Aurasound NS18-992-4A_ported.JPG (948.4 KB, 393 views)
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Old 21st September 2011, 06:18 PM   #8
Pallas is offline Pallas  Pakistan
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Quote:
Originally Posted by mclsound View Post
I am looking into a Bryston 10bLR to cross the Aura's around 40-50hz.
You don't need a driver as good as the NS18 if your crossover point is so low. A better idea is to think about using it up to 100Hz at least.
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Old 22nd September 2011, 09:12 AM   #9
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thanks Bjorno
I take it you are suggesting one of the last 2 schematics?
What would the boxvolume be?..and is it a round port?Are they better?
thanks john
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Old 24th September 2011, 11:27 AM   #10
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I am having trouble reading the designs.Which is best for music and are they all based on 5.8(ish) volume?
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