too much port?

[EvilSquirrel 10+ year member]

what does having too much port area cause?

Diamond says 3in Ø port per 10" D3. Thats 7in² per sub.

Im running D3 10s in a 2 cube box with 19.5in² tuned to 31.5hz.

would that be why my bass seems muddy?

I was thinking it might be the settings on my cheap amp, but then this problem hit me like an escaped lab monkey seekin revenge for those ****ed makeup tests by using a tube sock and bar of soap and attacking first time box builders...

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[Bumpin' Goalie 10+ year member]

Most people use 12-16 inches per cube for unflared slot ports.

7-10 inches per cube for flared aero ports.

Just a guideline.

 

[EvilSquirrel 10+ year member]

mines a slot port. so your saying i might be running too small???

 

[nateberrier 10+ year member]

might be? lol yeah you need a little bigger port. I run more than that on two 8s

 

[EvilSquirrel 10+ year member]

well guess im gonna build a new box haha.

I was going by what Diamond says to run.

 

[Bumpin' Goalie 10+ year member]

Aim for 26-30 sq. inches of port if you have 2 cubes net.

I design boxes, LMK if you need help.

 

[EvilSquirrel 10+ year member]

Does 2 cubes sound about right for 2 10s?

how does this look? 2 cubes, 29" of port

and is .75" mdf the norm? or would it be ok to go down to .5" mdf with smaller subs?

 

[TheFiverMan 10+ year member]

Yeah 2 cf is fine for 2 10"s

 

[Bumpin' Goalie 10+ year member]

.75" would be wanted. And small bracing even could be used for this application.

2-2.5 cubes should be fine.

That looks better for port area. But you only have 12.5x2=25. Could go 12.5x2.25 and simply adjust length/airspace (displacement) accordingly.

 

[EvilSquirrel 10+ year member]

oh my bad haha. your right. i was looking at the width of the side plates, not the height