Wide or slim CGR dMar-Ken cabinet?

LaszloGogolak · 06:06 PM

Hello,
I'm planning to build my first set of speakers and after quite a bit of research I decided to start the DIY journey with the Classic Golden Ratio dMar-Ken7.3.

Now the question is: what should be taken into consideration when choosing between the wide or slim version (where the latter is essentially a wide version vertically rotated by 90 degrees)? Do they have different characteristics, especially in the bass and imaging department? Or is it speaker placement/room characteristics dependent? Or the whole question is a matter of aesthetics?

Thanks for helping me to make an educated decision!

planet10 · 13th July 2016, 05:08 AM

Laszlo,

The primary difference between wide & narrow is where baffle-step loss happens. The wide will be a bit over an octave lower, and if placed near the wall, that will reduce the need for baffle-step compensation (note that we rarely use any).

The CGRs are all wide and shallow as a default.

dave

LaszloGogolak · 04:04 PM

Thanks Dave! I much prefer the wide baffle aesthetically and based on my readings about baffle-step loss I supposed it can go lower -- very nice to get confirmation for you, that it actually does.

"if placed near the wall, that will reduce the need for baffle-step compensation" -- Does the placement of port/slot opening has any relevance here?

planet10 · 14th July 2016, 05:09 AM

Quote:

Does the placement of port/slot opening has any relevance here?

You don't want to block it. If close to a boundary you might get a little lift at the tuning frequencies.

dave

LaszloGogolak · 14th July 2016, 09:43 AM

Front ported it is then.

Thanks for the input!

12th July 2016, 05:06 PM	#1
LaszloGogolak diyAudio Member Join Date: Jul 2016	Wide or slim CGR dMar-Ken cabinet? Hello, I'm planning to build my first set of speakers and after quite a bit of research I decided to start the DIY journey with the Classic Golden Ratio dMar-Ken7.3. Now the question is: what should be taken into consideration when choosing between the wide or slim version (where the latter is essentially a wide version vertically rotated by 90 degrees)? Do they have different characteristics, especially in the bass and imaging department? Or is it speaker placement/room characteristics dependent? Or the whole question is a matter of aesthetics? Thanks for helping me to make an educated decision! Last edited by LaszloGogolak; 12th July 2016 at 06:06 PM.

13th July 2016, 05:08 AM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III	Laszlo, The primary difference between wide & narrow is where baffle-step loss happens. The wide will be a bit over an octave lower, and if placed near the wall, that will reduce the need for baffle-step compensation (note that we rarely use any). The CGRs are all wide and shallow as a default. dave __________________ community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

13th July 2016, 03:53 PM	#3
LaszloGogolak diyAudio Member Join Date: Jul 2016	Thanks Dave! I much prefer the wide baffle aesthetically and based on my readings about baffle-step loss I supposed it can go lower -- very nice to get confirmation for you, that it actually does. "if placed near the wall, that will reduce the need for baffle-step compensation" -- Does the placement of port/slot opening has any relevance here? Last edited by LaszloGogolak; 13th July 2016 at 04:04 PM.

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14th July 2016, 09:43 AM	#5
LaszloGogolak diyAudio Member Join Date: Jul 2016	Front ported it is then. Thanks for the input!

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