3 inch aeros for 15" Nightshade?

[Mattd0344 10+ year member]

So I'm going to be building a new box for my 15" Nightshade. I've been hearing that it's optimal in 3 cubes tuned to 35Hz with 1500 watts. I wanted to do two 4" aeros but after dropping down in size, the ports will be just a tad longer than I'd like. I can possibly make the box deeper and lessen its width but I'd prefer not to. Would two 3" aeros work just as well instead? Thanks

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[jnralp00 10+ year member]

I'd stick with the 4" if possible

 

[audiobahnuser18 5,000+ posts]

Just do two 6" aeroports. hit up http://www.thrilleraudio.com talk to mike he's a good guy.

 

[thefordmccord 10+ year member]

One 6" port, two 4" ports or four 3" ports will give you about the same amount of port surface area. I wouldn't run much less than that for a 15" nightshade.

 

[audiobahnuser18 5,000+ posts]

x2 on what theford said. That nightshade need's to breathe lol.

 

[KHARPS 10+ year member]

Sorry to thread-jack but will two 3'' aeros be alright for the 12'' Nightshade in 1.5 cubes?

 

[Mattd0344 10+ year member]

One 6" port, two 4" ports or four 3" ports will give you about the same amount of port surface area. I wouldn't run much less than that for a 15" nightshade.

even in just 3 cubes??? like right now my box is a little too big...4.25 cubes with two 4" aeros tuned to 33/34Hz

 

[Mattd0344 10+ year member]

alright, i think that im just going to increase the volume to 3.15 cubes after displacement....decrease the length and increase the width and then ill have the perfect amount of room for the port to have some breathing room..(the recommended 4" from the back of the box

 

[Mattd0344 10+ year member]

Ok one last thing....I'm thinking about swapping out different ports when it comes to competition time. Would an increase from 35Hz (its daily tuning) to around 46Hz have a negative affect on the sub in the same size enclosure? (3.15 cubes)

 

[Mattd0344 10+ year member]

anyone?

 

[mugen08 10+ year member]

One of the guys on here ran a box where port area = cone area.

And it worked well.

Basically you could use 2 3'', it would do the job, but 2-4'' would be more optimal.

And on swapping ports, I don't think you need to worry w/ only 1500 watts

 

[mazdakid 5,000+ posts]

i wouldnt use 2 3" ports for a 15" nightshade.

atleast use 2 4".

you bought a bad ass sub, why not make it loud?

 

[Mattd0344 10+ year member]

i wouldnt use 2 3" ports for a 15" nightshade.atleast use 2 4".

you bought a bad ass sub, why not make it loud?

lol ya true...i already have it in a box with two 4" ports but the box is a little too big, so im making it a little smaller. i didnt think switching it to two 3" ports would make that much of a difference. but im gona use two 4" ports for the new box as well. i just wana know what others are tuning their nightshades to for SPL applications? i was thinking 46Hz for when i compete and 35Hz for daily