help building a sub box ported or sealed

[kg1961]

hi guy just picked up a cool older sub i want to make a nice box for. i am going to invert the sub
here are the specs

i would like to go port but would like a long top to bottom port not the 4" round

let me know what you think i have 500watts rms and a sub sonic filter

specs

Thiele Small Parameters

outside Diameter 15"

Mounting Hole 360mm

Mounting Depth 190mm

Magnet Weight 3.912 kg

Max. Peak Music 1000 W

Continuous Power 500 W

Nominal Impedance 4+4 Ohm

Re 1.911 Ohms (Parallel)

Le 2.214 mH

V.C. Diameter 75.8 mm

Sd 0.0824 M

2

Vas 97.24 Liters

Fs 24.38 Hz (Parallel)

qts 0.523 (Parallel)

Qes 0.592 (Parallel)

Qms 4.472

Mms 417.5 g

Rms 14.3 kg/s

BI 14.37 Tm (Parallel)

2.8V SPL 91.97 dB

Xmax 20mm

Vd 3.5 Liters

• Black Powder Coated Cast Aluminum Basket

• High-Performance Glass Fiber Cone

• Stitched PVC Rubber Surround

• Dual High-Performance Polycotton Spiders

• 3-inch Heat Resistant 4-Layer Voice Coil

• Black Anodized aluminum voice coil bobbin

• Dual 4-Ohm Voice Coils

• Hight current tinsel leads

• Chrome-Plated Push Type Terminals

• Powerful 138oz Magnet

• S.E.T. (Spider Exhaust Technology) cooling

• Chrome Plated, Bumped and Vented T-Yoke

• Injection-moulded rubber mounting gasket

Maximum Power Handling . . . . . . . . . . . . . . . . . . . . . . . 1000W

Continuous Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 W

Frequency Response . . . . . . . . . . . . . . . . . . . 17 Hz to 800 Hz

Woofer Cone Material. . . . . . . . . . . . . . . . . . . . . . . . Glass Fiber

Woofer Magnet. . . . . . . . . . . . . . . . . . . . . . . . . Strontium Ferrite

Woofer Basket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aluminum

Woofer Surround . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rubber


Sealed - Sound Quality


Enclosure Airspace = 1.5 ft3 net

Qtc = 0.804 F3 = 36 Hz



Vented - SPL


Enclosure Airspace = 2.0 ft3 net


Vent = 4” diam. x 10.39” long

Fb = 35Hz F3 = 31.4 Hz

[ttocs]

so a slot-port?

[kg1961]

so a slot-port?

i would like to but how do you take a 4" round by say 10.39" long and make it that style?

[kg1961]

i have 9"inside of the box so 11.5 out side x 16 total outside x41outside to work with so sealed or ported let me know what you guy think size style ect

[kg1961]

anyone have a box program or know what the size should be
please


i really like sealed but heard strykers car over the last 3 years and ported is sssooooooooooooooooooooooo loud

[shawn k]

Draw a picture of the box (with dimensions) you have in mind and post it up here.

I'll be able to help you once I see that...

[kg1961]

Draw a picture of the box (with dimensions) you have in mind and post it up here.

I'll be able to help you once I see that...

thinking shallow, tall and long