SA8v2's in IB setup?

[cfox10 10+ year member]

I've heard they won't do very well in a trunk baffle/ib setup... I'm interested in throwing them into the rear deck to get away from having a box in the trunk. Thoughts?

Also curious about IB setup for SSA Zcon 18 through ski hole?

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[Slo_Ride 5,000+ posts]

No

 

[So Low iT Hz]

No no no no. Opposite alignment for that woofer.

As for good 18s for infinite baffle look at the SSA Evil or Fi SP4. Fs/Qes is the only calculation you need to make to determine proper alignment. The lower the number, the better.

 

[cfox10 10+ year member]

No no no no. Opposite alignment for that woofer.
As for good 18s for infinite baffle look at the SSA Evil or Fi SP4. Fs/Qes is the only calculation you need to make to determine proper alignment. The lower the number, the better.

Well... I already have the 18" Zcon.. and the 8's.

What are my options? My girlfriend is tired of having a huge box in her trunk for the 8's lol. It sounds great but her civic trunk is tiny.

My other option would be to build a box sealed up to the rear deck using the deck as the baffle and port it through a center cutout aero? subs/port through rear deck... Can build the box and do a small false wall to look like nothing is there?

 

[cfox10 10+ year member]

anyone?

 

[mylows10 5,000+ posts]

sell the 8s and i can have some custom ones built for you that will work

 

[Spooney 10+ year member]

Sell the SA-8's and get a sub meant for the application . Dayton audio makes some decent ones. FI as well plus there are a slew of other drivers out there that will work in this application. The SA-8v.2 is not my choice for this setup (or any for that matter) . @keep_hope_alive; would be a good guy to speak with about IB

 

[keep_hope_alive Premium Member]

you can force a non-ideal alignment into IB with an aperiodic (AP) membrane and get good results. I've tried various woofers in IB/AP and all did well if your goal is accurate music. I wouldn't try SPL competition with the alignment.

there are a variety of ways to implement AP. this is a good resource for the various methods:

AP Enclosures-The Aperiodic Cookbook | Tutorials | Team Audionutz

GlassWolf's Pages

i did mostly rear loaded membranes (or chamber-coupled)

but your best bet for least work is front loaded. just sandwich the fiberglass (or preferably ultratouch insulation) between two speaker grills, secure to the rear deck (needs an air-tight seal against the woofer basket) and experiment with density for tuning.

 

[cfox10 10+ year member]

you can force a non-ideal alignment into IB with an aperiodic (AP) membrane and get good results. I've tried various woofers in IB/AP and all did well if your goal is accurate music. I wouldn't try SPL competition with the alignment.
there are a variety of ways to implement AP. this is a good resource for the various methods:

AP Enclosures-The Aperiodic Cookbook | Tutorials | Team Audionutz

GlassWolf's Pages

i did mostly rear loaded membranes (or chamber-coupled)

but your best bet for least work is front loaded. just sandwich the fiberglass (or preferably ultratouch insulation) between two speaker grills, secure to the rear deck (needs an air-tight seal against the woofer basket) and experiment with density for tuning.

Thank you for the resources, very useful.

If I built a new box to fit the woofers mounted in the rear deck with a aero port through the center (cutout on the rear deck) into the cabin... how different would the response be from keeping them in the trunk like they are now?