4 sa8 v3 tuning, air space, and rms

[germanyt 10+ year member]

Enclosure came out pretty nice. Im sure itll slam. Give em plenty of power. Like 2k+

 

[germanyt 10+ year member]

Didn't forget about you bro. Just busy. Will post pic we talked about tomorrow.

 

[germanyt 10+ year member]

If you wind up with port noise or it just doesnt sound right consider something like this. Run the 2 subs with whatever slot port you can fit that runs along the top of the box and over the driveline hump. You can even find some thinner ply for the port walls to make it clear the hump.

 

[The_Dealer]

Not enough volume and too little port area imo. Tested a pair of sa8v3 in my first box I built for my x8's and it was perfect for them, worked even better than my x8's did in it. Box was 1.6cuft@32.5hz with 16.5sqin port per cube.

I've found that sundown's recommended box size for the sa8v3 and x8's are far from optimal. Hell I ran 3 x8's in 3.5cuft@33hz with almost 20sqin port per cube.

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[Jspawn80]

Not enough volume and too little port area imo. Tested a pair of sa8v3 in my first box I built for my x8's and it was perfect for them, worked even better than my x8's did in it. Box was 1.6cuft@32.5hz with 16.5sqin port per cube.

I've found that sundown's recommended box size for the sa8v3 and x8's are far from optimal. Hell I ran 3 x8's in 3.5cuft@33hz with almost 20sqin port per cube.

Sent from my SM-G920T using Tapatalk

i ran my design through winisd, im trying to make the box i have work. I was thinking of splitting the box into two chambers and porting both sides. Winisd says i can use 2 ports that are 2 inches by 14.5 inches which would leave me with a tuning of 36hz and each woofer would be left with .425 ft^3 after displacement. i tried inputting a bigger port but it makes them too long and the vent mach goes up, with the 2 inch ports my vent mach is at 0.11, any ideas??

 

[Jspawn80]

Not enough volume and too little port area imo. Tested a pair of sa8v3 in my first box I built for my x8's and it was perfect for them, worked even better than my x8's did in it. Box was 1.6cuft@32.5hz with 16.5sqin port per cube.

I've found that sundown's recommended box size for the sa8v3 and x8's are far from optimal. Hell I ran 3 x8's in 3.5cuft@33hz with almost 20sqin port per cube.

Sent from my SM-G920T using Tapatalk

Also i could leave the box as one hole chamber, winisd states i should be able to use 3 2 inch ports that are 9.5 inches long. If i do that the subwoofers would see .45 each after displacements. The only thing im worried about if i do that the ports would be behind one pair of subwoofers, would i run into problems since the other pair of subwoofers are farther from ports? also this set up leaves my vent mach at 0.10

 

[Jspawn80]

Bump

Does anyone know if 3 2" ports will work for the 4 sa8's? Winisd states the port mach will be down to .10

 

[Boomin_tahoe 5,000+ posts]

I would think 2" ports would be too small. Try aeroport or just a reg port as part of the enclosure.

 

[Jspawn80]

I would think 2" ports would be too small. Try aeroport or just a reg port as part of the enclosure.

i tried to use a single 4 inch port but i got too much port noise, i reran my box through winisd and it says i can use 2 3 inch ports, would that work?