Si 15" d2

[cburbs]

I am looking at the following build -

Boxes: Flatpacks * 2 - http://www.diysoundgroup.com/subwoof...flat-pack.html
Subs: SI 15" D2 * 2
Amp: Behringer EP4000

Also looking at these amps - Behringer NU3000 iNUKE 3000 or
Behringer EPQ2000

Is the ep4000 the better one of the group? The other two are $100 cheaper than the ep4000.

Suggestions/opinions?

[diamonddelts]

I am looking at the following build -

Boxes: Flatpacks * 2 - http://www.diysoundgroup.com/subwoof...flat-pack.html
Subs: SI 15" D2 * 2
Amp: Behringer EP4000

Also looking at these amps - Behringer NU3000 iNUKE 3000 or
Behringer EPQ2000

Is the ep4000 the better one of the group? The other two are $100 cheaper than the ep4000.

Suggestions/opinions?

I'd go with two SI 18's if you can. As for the amp, the EP 4000 would be the more powerful amp of those two listed. Though for sub use only, I'd definitely go with the Inuke 6000. I've ran subs with the EP 4000 before and I was NOT impressed at all.

[cburbs]

Sticking with going with a 15" for now. Just looking for an amp that can drive two of these at the $299 price level vs $399 if possible. Any suggestions besides the ep4000($399) at most places.

[Gorilla83]

The EP4000 can be had in the low 300s if you shop around or via ebay with the "make offer" function. I have had good luck with unique squared (Seller) as well.

[cburbs]

Good info to know. I didn't look there as I haven't used ebay in a long time as I try to avoid it.

[dguarnaccia]

I have a pair of Dayton 1000's I'd part with for 200 each if you are interested

[cburbs]

I'd go with two SI 18's if you can. As for the amp, the EP 4000 would be the more powerful amp of those two listed. Though for sub use only, I'd definitely go with the Inuke 6000. I've ran subs with the EP 4000 before and I was NOT impressed at all.

What will the 18's give me over the 15s? I am 50% on music/HT in my room.

[sbdman]

44% more volume going to 18" if you have the same Xmech (stroke.)

That's a lot more air moving around!

[cburbs]

OK so I ordered the 3cu box from diysound group and my 2 si 15d2.

Other parts/things I will need for the build. Am I missing anything.

Amp: still deciding but probably the ep4000

Binding Posts: Square Speaker Terminal Cup 4" Gold Banana Binding Post or Threaded Binding Posts BNDG-03

Clamps: Have some but will either buy more or check with family members for more.

Glue: Titebond III glue

Caulk for inside seams

Paint: If I go with Duratex how much will be needed to cover 2 of these boxes? Do you need to do Primer?

Grills: Magnets for grills and speaker cloth. Where do most people get there magnets from?

Subwoofer Fill: PolyFill (1/2 lb per cu ft)

Fastners for mounting drivers: What do most people use besides t-nuts? I saw mention of SPAX #10 by 1.5"...

[Gorilla83]

My take:

Amp - EP is a great choice

Binding posts - After having my terminals come loose at times, I now use only speakon connectors

Caulk - Use PL premium to seal the inside of the box, only if needed

Glue/clamps - OK

Paint - About 1/4 to 1/3 of a gallon should be more than enough to do a couple coats on both boxes.

Magnets - I get mine from magnetssale.com. I use Neo 1/2 diameter x 0.2" depth magnets which have some awesome holding power.

Fill - General recommended is 1# per cubic foot.

Fasteners - I use #8 washer head (or pan head) black oxide wood screws from Woodcraft.

[cburbs]

Good info. Did you mean http://www.magnets-sale.com for the magnets?

[cburbs]

Also -
Someone mentioned the following - If you go with an EP4k, what will you be using as an XO and infrasonic boost for the sealed box?

My answer -
My receiver for 80hz xo and a Antimode 8033c.

Am I missing something?

[Gorilla83]

Good info. Did you mean http://www.magnets-sale.com for the magnets?

http://www.magnet4sale.com/

Also -
Someone mentioned the following - If you go with an EP4k, what will you be using as an XO and infrasonic boost for the sealed box?

My answer -
My receiver for 80hz xo and a Antimode 8033c.

Am I missing something?

I'm not as familiar with the antimode, but you will likely need to apply some type of eq/boost below 30hz.

[cburbs]

Most of the parts came yesterday. Just short one woofer that should be here Mon/Tues. No real hurry though as another project needs to be done before may 4th for a gathering.

[cburbs]

The build is finally on the way....