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Author Topic: Need help to correct this cab...please  (Read 5670 times)

jojo limuaco, jr.

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Need help to correct this cab...please
« on: September 20, 2010, 09:42:43 am »

Hi to all, i don't know if I'm in the right forum...but here it goes anyway.

index.php/fa/32644/0/

index.php/fa/32645/0/

In the pic above how will these box perform? say at 100hz and above.

Thank very much,
jojo
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Duane Massey

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Re: Need help to correct this cab...please
« Reply #1 on: September 20, 2010, 12:14:44 pm »

Can not tell anything from the pic, need pics and dimensions from all angles to even begin to comment.
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Duane Massey
Houston, Texas, USA

jojo limuaco, jr.

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Re: Need help to correct this cab...please
« Reply #2 on: September 20, 2010, 04:48:56 pm »

Hi,

I'm am very sorry, this is all i can get from the seller.

Dimension: H x W x D approx. 32" x 22.5" x 20"

http://9vroag.blu.livefilestore.com/y1p_hR3pxYf7KFdAXjqwFapDDHtWuTYVDJEMBiLK6AyKtvRbtBL7Xyd5iSmGheMWDV2h54COJmbIPPTvWIp2CTLjZDXerbc9ZBv/Electrotech.jpg?psid=1

http://public.blu.livefilestore.com/y1ptfYVxKEj1v8QVS1FD4iQNEVuTN0fkMPzV-n_cbGtIZaxRT3iR3LntCL4avetAJVsTvmivwVWia2kE_dQLelvEA/electrotech5.jpg?psid=1

Sorry for the 2X post, having a hard time on how to post.

Thanks
jojo
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Duncan McLennan

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Re: Need help to correct this cab...please
« Reply #3 on: September 20, 2010, 05:11:22 pm »

Well it's definitely a mid-high box... probably would need a bass box in addition to subs to get full range.

Other than that, who knows?
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dcm
Waterloo & London, Ontario

Bennett Prescott

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Re: Need help to correct this cab...please
« Reply #4 on: September 20, 2010, 05:35:37 pm »

Jojo,

How fast will this car accelerate from 0-60 MPH? How many Gs can it pull on a skid-pad?

index.php/fa/32652/0/

I hope you can see that you have presented us with way too many unknowns and variables. If you are uncomfortable buying an unknown loudspeaker based on the say-so of a stranger (and I would be!) don't do it.
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-- Bennett Prescott
Director of North American Sales
ADRaudio d.o.o.
Cell: (518) 488-7190

"Give me 6dB and I shall move the world." -Archimedes

jojo limuaco, jr.

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Re: Need help to correct this cab...please
« Reply #5 on: September 20, 2010, 06:33:08 pm »

Thanks to all...its a good thing to ask opinion from others that's what i told my friend, saves him Time and Money.

One last thing...how do i delete double post? sorry really.

thanks again
jojo
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Art Welter

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Re: Need help to correct this cab...please
« Reply #6 on: September 20, 2010, 07:36:14 pm »

 index.php/fa/32653/0/

Jojo,

You can have the moderator delete a post, hit the "Report message to a moderator" button and ask him to delete the double post.

As far as the cabinet, you can estimate the low frequency cutoff of the horn as about four times the wavelength of the horn depth.

If the horn was 1 foot deep, 4  x 1= 4 feet.
Speed of sound 1130 fps.
1130 /4 =282.5 HZ.

Art Welter
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jojo limuaco, jr.

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Re: Need help to correct this cab...please
« Reply #7 on: September 20, 2010, 08:27:55 pm »

Thanks Art...

This is good know that there is quick simple math.

what is your thought regarding the box, those 12" looks like not in a sealed configuration...if played in a full range is that a problem? (no Xing)

jojo

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Art Welter

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Re: Need help to correct this cab...please
« Reply #8 on: September 21, 2010, 06:26:08 pm »

jojo limuaco, jr. wrote on Mon, 20 September 2010 18:27

Thanks Art...

This is good know that there is quick simple math.

what is your thought regarding the box, those 12" looks like not in a sealed configuration...if played in a full range is that a problem? (no Xing)

jojo


As a rough guess the tuning of the cabinet looks to be around 65 HZ, so you would want to high pass around 60 HZ or above.

It is not a "full range" type of box, and the horn load/ported design will require quite a bit of EQ, the output will probably be 3-10 dB more from around 250 to 1200 compared to the output in the 60-250 range.


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Antone Atmarama Bajor

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Re: Need help to correct this cab...please
« Reply #9 on: October 04, 2010, 02:44:52 am »

Unless the Mid driver has a sealed basket, its always bad to have two different drivers radiating into the same enclosure.  
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