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Volkswagen Transporter T5.1
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Discussion Starter · #1 ·
Hiya folks!

I have a VW Transporter and as it’s a work vehicle, I’m limited on space for a sub so I’m exploring the usual under seat sub option.

grabbed a spare seat base for ease of building but with its odd shape and internal bracing for the seat, I’m wondering what is the best way to tackle this.

To get into all the odd shapes, fibreglass? Expanding foam? Build the areas with MDF and then smooth out with fibreglass?

I’ll be measuring the space underneath where it bolts to the floor of the van to see if I can build on the outer of the frame and gain some extra volume that way but could do with some ideas/inspiration.

TIA

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I hope that’s a single passenger seat base… you won’t get as good sub bass from a drivers seat, plus tactile feedback will mess with the sub disappearing somewhat
 

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Volkswagen Transporter T5.1
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Discussion Starter · #3 ·
I hope that’s a single passenger seat base… you won’t get as good sub bass from a drivers seat, plus tactile feedback will mess with the sub disappearing somewhat
Thanks for your reply.

It’s a drivers seat, why would the seat designation have an impact on bass output?
 

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Volkswagen Transporter T5.1
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Discussion Starter · #5 ·
Position of subwoofers in relation to your listening position makes a big difference to low end extension and the influence the vehicle has on the subs response
Fab, makes sense.

So with that in mind, I have nowhere else to place the sub.

Any insight on my original post?
 

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I think I’d build it with wood in the seat base, but you can’t go too big as the seat bolts are inside the base, I’d make it as big as I could in plain wood if I’m honest, no need for fibreglass and stuff for that 👍🏼 Make it wider at the top and cut out small parts if it sits over bolt heads or whatever
 
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