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Old 14th October 2007, 05:54 PM   #1
arago is offline arago  France
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Question what sub with HT240M0 ?

Hi all,

I'm wondering what kind of subwoofer can I build with 2 HT240M0 ?

Presently, my two HT240M0 are used in a decware wicked one sub. I think that the rear volume is to small for these ones (~30 liters) and I want to change for better sound.

Many thanks for your help.
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Old 14th October 2007, 10:50 PM   #2
bjorno is offline bjorno  Sweden
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Quote:
I think that the rear volume is to small for these...
Hi,

The drivers are suitable for bass or for use as bass stands, you can see in my submitted simulations the difficulty to extend the frequency response further down only by increasing the volume.

Ported designs and a subsonic filter becomes a necessity if the goal is to reach into the sub area.

b

1(2)
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Old 14th October 2007, 10:52 PM   #3
bjorno is offline bjorno  Sweden
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2(2)
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Old 15th October 2007, 02:41 AM   #4
GM is offline GM  United States
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Greets!

I don't know how they perform in a Wicked One or what sort of performance you would like from these, how big a size you can tolerate, whether you want to build one big one or two smaller ones, etc., so it's kind of hard to answer your question.

Do you have measured specs for yours?

Anyway, here's a single driver 28 Hz MLTL to consider based on published specs:

L = 44.842"
WxD = 303.473"^2
zdriver = 19.604"
zport = near/at the bottom
dport = 5"
Lport = 4"
stuffing density = 0.2 lbs/ft^3 polyfil

All dims i.d. and can be rounded off to suit.

GM
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Old 15th October 2007, 05:27 AM   #5
arago is offline arago  France
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Thank you for your responses,

Actually, wicked one enclosure is 1x1x0.35 meters and that's quite big for my room.
My objective is to explore Bass quality . My Wicked one Horn seems to be very boomy and the response has enormous variations according to my listening position.

So Bjorno you suggest me to build a ported design ? What about isobarik one ? What about use them in open box (not closed rear enclosure...) ? Or tapped horn ?
You introduce me that i can't get better "subsonic excursion" with theses drivers ? that's it ?

Read you later...

Arago.
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