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Old 10-16-07, 04:18 AM   #1 (Link)
nickh
Shackster
Alias: NickH
Loc: Canada
User: #12436
Since: Oct 2007
Posts: 11
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My Subwoofer Design


Hi All,

After reading many threads about the SoundSplinter drivers I've decided to join the elite club and build a high performance subwoofer.

I've currently have the B&W 803D Floorstanding speakers for fronts and the HTM2D for Centre.

I've previously been testing the Velodyne DD Series subwoofers, specifically the 15" and 18" versions.

http://www.velodyne.com/velodyne/pro...italDrive.html

Here in Australia, they are not cheap. DD15 is about $5.6k and DD18 is $6.6k

I like the idea of a sealed subwoofer, no port noise and does not require a large amount of tuning.

I am wanting to build something with a Frequency Responce that goes down to around 15hz. At first I thought the RL-P18 would be great, but reading some designs, it seems it requires a LARGE enclosure (Most being ported designs too). I would not want to build anything with an enclosure size bigger then Cabinet (H/W/D): 25"x25"x25" giving about 9 cubic feet to play with.

I'm just wondering on the SS website, the says for the 15"

Optimal Home: 4.6 cu ft net volume sealed

What is the frequency responce? Can someone assist on a good size enclosure to get down to 15hz?

Another option is to build a dual sealed 15" or 18"......

For power, I was planning on using a either:

1. Crown Audio XTi4000, 2x1200Watts in 4ohms, Is this too much power? Will 2x500Watts or 2x800Watts in 4ohms do the job?

2. Another power option is Redgum Audio Plate Amplifiers: http://www.redgumaudio.com/store/Sub_Amp_Plates.html

RGSW5 is 1x 700watts in 4ohms
RGSW6 is 1x 1100watts in 4ohms

Being only a single channel, this would then mean I would splice the cable from 2 to 4 for the dual voice coils yeah?

I'm keen to order so any input would be great!!

Thanks Nick.


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