HELP! This is making NO sense!

[Torquem 10+ year member]

I am going to have an enclosure built tomorrow and the information that I have on the subwoofer is making absolutely no sense to me. I need someone that really knows what they are talking about to interject. I bought an eclipse SW8010 and the way they present the info is confusing. Rather than giving figures like "displacement" and "net internal volume" they simply give this info -

recommended internal enclosure volume - 2 cuft

tuning frequency - 33 hz

internal height - 18.5

internal width - 12.5

internal depth - 20

port opening area - 2"x12.5" (25 squared)

Port length - 28.5

I'm used to seeing sub requirements in a completely different way and I cannot make sense of it. I need to change the shape of the enclosure and retain the internal volume and tuning frequency but I am unable to extrapolate anything from the info above.

If it helps the TS parameters are

nominal impedance - 4 ohms

Voice coil DCR - 3.3 ohms

FS - 21hz

Qms - 5.25

Qes - 0.39

Qts - 0.36

Vas - 28 L

MMS - 356g

Xmax - 22mm

Dia/Sd - 347 cm2

BL/No - 20 Tm

1 watt SPL - 86 dB

Click to read more...

 

[CRXBMPN 5,000+ posts]

well it says the sub wants an internal volume of 2 cubic feet for a ported box with a port that is 2" tall x 12.5" wide for 25 sq'in of port and it needs to be 28 inches long... the box is INTERNALLY 18.5 tall, 12.5 wide, and depth of 20... now thats internal... I guess you will have to make an L shaped port if its going to be 28" long as well.