Series tuned 6th Order??

[iLL Ridge 10+ year member]

Frankenstein this sum *****.

A single 10 on 1400 watts or so.

Wonder what it'd sound like?

I can adjust second chamber volume and ports in both chambers.

Maybe fun to experiment with it.

Click to read more...

 

[Hertz Mafia]

The ported side the woofer is in, how come it doesn’t go all the way to the top. Seems like space for air flow to get trapped in.

 

[THATpurpleKUSH 5,000+ posts]

Not a good design with the ports, the top port is being choked by the port coming through the mounting baffle.

 

[ciaonzo 5,000+ posts]

The top port is the low end tuning (high pass), feeding the chamber with the output ports. Those are the high end (low pass)/total product ports. Viola.. bandpass.

Without sophisticated modeling, gonna be hard to get that right.

Same as seen here, just with two ports to the outside. Same difference.

 

[iLL Ridge 10+ year member]

keep on....

 

[iLL Ridge 10+ year member]

I see what was mentioned about the placements of the ports.

The outer shell is actually the forward 1/2 of my trunk.

Output ports are through the armrest.

I can make the inner box taller to come all the way to the lid.

I can't change where the output port mount location is.

I can change port dimensions.

I think the airflow may be ok though.. Or at least not a big deal.

 

[ciaonzo 5,000+ posts]

I would stay away from a series 6th order altogether if you value musicality. The group delay is horrible. It's good for output and not much else.

 

[iLL Ridge 10+ year member]

Hmm. good input.

My goal is to get lows into the cabin.

I'm willing to sacrifice spl and a little SQ in exchange for lows.

My trunk cancels out lows with the doors closed and windows up.

 

[ciaonzo 5,000+ posts]

You need an old school 4th order with a medium sealed rear chamber and a large vented front chamber with a large and long vent, like 6-8 inches in diameter. Remember the old 90's JL Audio bandpass enclosures? Obscene amounts of low frequency output with very little required input power. Different drivers for sure, but the concept is unchanged. Simply mate that up to your ski pass and call it a day.

 

[ciaonzo 5,000+ posts]

Found one. Just omit one driver/chamber.

 

[ciaonzo 5,000+ posts]

No idea who this kid is but looks like he figured it out. Plays music at about 1:30.

 

[iLL Ridge 10+ year member]

4th order is what I would do.... but the XFL i have doesn't like sealed.

I have an eclipse also, but idk how it would do sealed and it can't take the power the XFL can.

They both get low and loud in 1.2 cubes ported to 32.

 

[ciaonzo 5,000+ posts]

but the XFL i have doesn't like sealed.

Specs would suggest otherwise. I know sealed is a naughty word on this site but it would do just fine in anything under a cube. Vas is only 14 liters (roughly half a cube) because the suspension is stiff but it has a decent moving mass figure to go with that. BL isn't all that impressive (actually bad for driving a vent) but the Qes/Qts looks okay so I wouldn't worry about it. It's a decent sub.
XFL1022

 

[iLL Ridge 10+ year member]

Yeah I've tried the xfl sealed and it lost a TON of output especially around 40-50 hz if i remember right