How many cubic feet for two Sa-8's

[Pyrofan]

So, im making a box for my truck. I got two Sa-8's. Is 2.09737 FT^3 to much air? Its a sealed box.

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[Slo_Ride 5,000+ posts]

Way too big.

SA 8 (one)

Sealed 0.28 ft^3

Ported 0.5-0.75 ft^3 @ 35hz

Displacement 0.08 ft^3

Depth 6 5/8"

Outside Diameter 8 3/8"

Cut-Out 7 3/8"

 

[sthib 10+ year member]

I'd got ported thats just me tho.

 

[Pyrofan]

Would that be the right size for ported?

 

[Slo_Ride 5,000+ posts]

For two

0.6 sealed

1.2 ported

 

[bbeljefe]

What kind of power are you sending them? 1.5 cubes is recommended but 2 wouldn't be bad, so long as you're not hitting them with big power.

 

[Pyrofan]

0.6 sealed1.2 ported

Well, a port would be hard on my design.

What kind of power are you sending them? 1.5 cubes is recommended but 2 wouldn't be bad, so long as you're not hitting them with big power.

1 ohm and about 1500w but turn down power. (Is gains the right term here?)

 

[Slo_Ride 5,000+ posts]

For daily and that much power I definitely wouldnt go more than 1.5 ported.

 

[bbeljefe]

You should stay within manufacturer's recommendations with that kind of power. And yes, it's gain.

Oh and... nobody ever said designing and building a speaker box is supposed to be easy. If you want a clean sounding, loud system then go to the trouble of porting the cabinet. It's not like you have to build a whole new box every time you decide to listen to the system. Build it right once and enjoy it over and over again for years.

 

[Pyrofan]

Well, im stuck between a rock in a hard place. i guess i could shorten the box. So 1.2 sealed for two? also, is this wire ok? I dont wanna spend $75 on wire. 17' 0 Gauge RCA Wire AMP Wiring Fuse Amps Install KIT | eBay

Just cheap wire.

 

[Slo_Ride 5,000+ posts]

Well, im stuck between a rock in a hard place. i guess i could shorten the box. So 1.2 sealed for two? also, is this wire ok? I dont wanna spend $75 on wire. 17' 0 Gauge RCA Wire AMP Wiring Fuse Amps Install KIT | eBay
Just cheap wire.

No 1.2 for two ported. 0.6 for two sealed. There are design more for ported than sealed tho.

 

[Buck 5,000+ posts]

For daily and that much power I definitely wouldnt go more than 1.5 ported.

This, tune @ 32 hz for daily, that's what I'd do.

 

[Pyrofan]

Yea, but im not sure how to port this shape. Is not a box so. Wouldnt it be alot of dynamic cuts?

 

[Pyrofan]

Now im getting about .7 sealed. is this better?

 

[Pyrofan]

Buck i sent you the sketchup file. Let me know if you think it will work?