Big port vs. Small port?

[18lexusowner 10+ year member]

Which would be better for SPL?

The sub is in my sig.

The recommended is 20sqin and 15" deep. But I was big SPL outta this sub. (window flexing stuff)

What kind of port would be best for that? Also, big enclosure with a big port?

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[LGK 10+ year member]

why do you have a picture of a jag in your signature mr lexus ?

 

[BASSINMYSUBS 10+ year member]

Which would be better for SPL?The sub is in my sig.

The recommended is 20sqin and 15" deep. But I was big SPL outta this sub. (window flexing stuff)

What kind of port would be best for that? Also, big enclosure with a big port?

i say tune around 30-32 hz in about 4 cubes

 

[mazdakid 5,000+ posts]

i say tune around 30-32 hz in about 4 cubes

Why would you tune so low for spl? You should probably have more than 20" of port area for that sub.

 

[18lexusowner 10+ year member]

why do you have a picture of a jag in your signature mr lexus ?

Because I'm not too great with pic editing and that was the best looking luxury sig i could find. And I know that its a jag, not a lexus :/

 

[18lexusowner 10+ year member]

High frequency is window shaking spl?

I thought it'd be the other way around

 

[93dakota 10+ year member]

Go with a low tuning if you want a lot of flex. as for port a bigger port to a point will give you better SPl but it does have its draw backs. If i were you i would use about 16-18 inches squared per of port per 1 cubic ft of net box volume.

 

[DNick454 10+ year member]

Which would be better for SPL?The sub is in my sig.

The recommended is 20sqin and 15" deep. But I was big SPL outta this sub. (window flexing stuff)

What kind of port would be best for that? Also, big enclosure with a big port?

Hmm this is the second instance I've noted that people who own RD subs were recommended by the manufacturer to use grossly small ports. For something along the 4 cubic foot volume with a SPL 15" woofer, I would say 50-60 sq. in of port. I don't understand why RD recommends such itty bitty ports, that's gotta choke the sub down like no other.

 

[DNick454 10+ year member]

High frequency is window shaking spl?
I thought it'd be the other way around

Generally, tuning higher gets you more SPL, on pure loudness scale. But if you're looking to get loud in general on music and flex the hell out of your car on the lows in rap music, then yes, tune lower, around 32-35Hz.

 

[18lexusowner 10+ year member]

I'm going low than with a large port.

Both MisterGrubbs and Steve from RD audio said that the Sonance series likes small boxes/ports for some reason. I dunno why, don't know enough about soundwaves and building enclosures to understand that. Right now my box is tuned at 32hz and it flexes my windows on 1 song, but it has a very small port and I would like more umph out of my sub.

 

[thegreatestpenn 5,000+ posts]

rule of thumb is 16sq. inches of port per cubic ft iirc. remember you port to volume, not to sub size. me i slap the biggest port I can in/on and tune at either 33Hz, 35Hz, or 38Hz (38Hz for SPL)

 

[adas Pro Seller]

Just try it! worst case your out the $25 cost of a sheet of mdf //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[DNick454 10+ year member]

Just try it! worst case your out the $25 cost of a sheet of mdf //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

That's always a good attitude to have //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

Maybe you stumble upon something ground breaking:crazy:

 

[dappa5 10+ year member]

Just try it! worst case your out the $25 cost of a sheet of mdf //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

**** right! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

try :crap:try :crying:try:furious: try :verymad:then give up and settle for your fifth attempt //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[adas Pro Seller]

**** right! //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.giftry :crap:try :crying:try:furious: try :verymad:then give up and settle for your fifth attempt //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

there you go-point is to keep the box from every try and use which one is best //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif