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Old 30th June 2012, 02:05 AM   #1
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Default CSS EL70 MLTL or Derwent ??

Hi,

Just purchased a kit from CSS (I've heard so much about the EL70, I had to try it) and I intend to build the MLTL as shown from the CSS web site here ; Creative Sound - Product Details

The MLTL plan is great but is seems to be missing the exact location of the port, I believe this is important for a MLTL. As someone built these and would know the location of the port, please also feel free to comment about the sound.

Thanks in advance, this will most probably end up in my daughter's room. Thanks for the design Scott ;-)

p.s. Would the enclosure called Derwent produce more bass compare to the MLTL or even the full blown version of Mar-Kel70 ? I'm not expecting great bass from such a small driver but I have the Needle Cyburgs in my son's room (corner loaded) and it's pretty impressive for a 3 inch driver.

Eric

Last edited by e_fortier; 1st July 2012 at 12:38 PM.
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Old 30th June 2012, 02:21 AM   #2
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One can see/estimate from the plan that the port CL is perhaps 1.75 in / 45mm from the interior bottom.
One also has the option of a bottom entry.
While port location is important, great precision is placement is not required.


Quote:
Originally Posted by e_fortier View Post
Hi,

Just purchased a kit from CSS (I've heard so much about the EL70, I had to try it) and I intend to build the MLTL as shown from the CSS web site here ; Creative Sound - Product Details

The MLTL plan is great but is seems to be missing the exact location of the port, I believe this is important for a MLTL. As someone built these and would know the location of the port, please also feel free to comment about the sound.

Thanks in advance, this will most probably end up in my daughter's room. Thanks for the design Scott ;-)

Eric
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Old 30th June 2012, 02:43 AM   #3
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I didn't do all that good a job with that drawing, The vent should be as close to the bottom as possible.

dave
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Old 30th June 2012, 03:54 PM   #4
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Originally Posted by planet10 View Post
I didn't do all that good a job with that drawing, The vent should be as close to the bottom as possible.

dave
Hi Dave and all DIY full rangers,

Has anyone heard the Derwent, is it similar sounding as the MLTL ? I'm just trying to decide besides the 2 enclosures since the foot print is similar, based on the Derwent plans it looks like it goes down to 50Hz.

Thanks in advance,
Eric
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Old 30th June 2012, 09:21 PM   #5
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I know at least 1 Derwent has been made. But i have no opinion. Scott has a pretty good track record.

dave
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Old 1st July 2012, 01:05 AM   #6
jimbro is offline jimbro  United States
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Quote:
Originally Posted by planet10 View Post
I know at least 1 Derwent has been made. But i have no opinion. Scott has a pretty good track record.

dave
To say the least - I can't imagine bofu's sounding better than my half-changs.
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Old 2nd July 2012, 02:16 PM   #7
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Derwent + supertweeter (ERT26) it is then

Thanks for the feedback.
Eric
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Old 2nd July 2012, 06:51 PM   #8
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Please post some updates here when you build it!

KM
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Old 4th July 2012, 01:07 AM   #9
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Please post some updates here when you build it!

KM
I will but I don't have the speakers yet. CSS has only a few EL70 left, all kits are not listed anymore and the price for EL70 was slightly increased.

Any word on a EL70 MK2 ?

Rgds,
Eric
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Old 4th July 2012, 01:25 AM   #10
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If Bob runs out contact me Eric, i might be able to help.

dave
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