DIY with mfw 15 woofer

[django1]

I'm getting an mfw15 woofer with some cosmetic damage from GR Research here for 59$. Any opinions about using it with a
SA1 sub amp in a sealed sand filled box? Could I do better amp wise for about the same money?

[bkellison]

Parts express has a sale right now on their Dayton Audio 240W amps. Those might be a little better, for a little bit less.

http://www.parts-express.com/pe/pshowdetl.cfm?&DID=7&Partnumber=300-804&ctab=14#Tabs

[django1]

How about the BASH amps? I can get them in Canada, so less $...

And how do you pick a sub amp anyway?

[django1]

DIW? :peekaboo:

[edgebsl]

I'm getting an mfw15 woofer with some cosmetic damage from GR Research here for 59$. Any opinions about using it with a
SA1 sub amp in a sealed sand filled box? Could I do better amp wise for about the same money?

I think if you are going to run it sealed the Dayton with the bass boost will yield the best results. I like the way it looks with a 3-3.5 cu ft box. And it is just under xmax with rated 240w.

Modeling it in a vented box of the same size at 20hz, not a huge difference in output. F3 moves from around 34hz to 29hz. But the Dayton should make that F3 drop even more for sealed.

The Oaudio 300w would be a good choice for vented too.

I'm not sure why you would sand fill the box? There are other ways to get a stable cabinet and better things to use for fill.

[django1]

I'm not sure why you would sand fill the box? There are other ways to get a stable cabinet and better things to use for fill.

I thought I would build this one.

As I had to decide quickly I decided to get the SA 1 for this reason:"The really unique thing about this amp is the output response. A special gain circuit has been designed that will mirror image the roll off of a sealed box or open baffle design.". And I want to do a sealed box... Anyway this can't help but being a step up from my x-sub right?:D

I'm excited, speakers are great but subs are just plain fun...

[mojave]

I already have three of these woofers. Back in July, I asked Mark Seaton if he would provide a DIY design for a two driver sub. He sounded interested in the idea, but so far hasn't posted anything. The thread is available in Sandbagger's forum (Motor City Custom Audio).

[Sandbagger]

Mark has been a bit busy

All of those and more are headed to the land down under
now if we could only power them all up

I already have three of these woofers. Back in July, I asked Mark Seaton if he would provide a DIY design for a two driver sub. He sounded interested in the idea, but so far hasn't posted anything. The thread is available in Sandbagger's forum (Motor City Custom Audio).

[django1]

I spoke to Danny for a few minutes today and he says the subwoofer would be good in an open baffle with the SA 1. I think I'll try that first. It won't take very long...

[Sandbagger]

Just wanted to let you know that I am starting work on a pretty cool DIY for all those UFW drivers out there......


THIS SHOULD BE FUN:saywhat::whoopie:

[Steve_vai_rules]

sounds like a cool idea.

I am thinking of fixing the blown out spider on a damaged mfw 15 driver that I have. would be cool to pair an ob with the my current mfw. (though I am adapting that to a new smaller living room setup, and retiring the tiny energy 5.1 setup i got in the living room..

i look forward to seeing what you come up with..

:)


Matt

[edgebsl]

"All of those and more are headed to the land down under
now if we could only power them all up "

Now I have "Men at Work" stick in my head!

Lol!

[django1]

Here is a real noobish question:does the shape of the enclosure make a difference or is it just volume that matters?

I hope you have fun edgebsl !

[django1]

Just got the driver. Damn 15 inches is big!:yep:

[edgebsl]

Here is a real noobish question:does the shape of the enclosure make a difference or is it just volume that matters?

I hope you have fun edgebsl !

The driver does not know the shape of the enclosure so in my opinion no. It does not matter.

Bracing can matter a bit depending on what material you are using.