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Multi-Way Conventional loudspeakers with crossovers

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Old 6th June 2013, 10:48 AM   #931
vuki is offline vuki  Croatia
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Quote:
Originally Posted by slr 5000 View Post
hi all
The gpa drivers are worth the wait
here are my 212 8a hiraga style
Hi Sheafer,

they look great! Congratulations. What about the crossover? Have you done any measurements?

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Old 6th June 2013, 11:53 AM   #932
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hi and thanks
I am using the gpa crossovers so all is well and no need for measurements

i will be upgrading the crossovers to mundorf supreme though to get the last bit out of the speakers

Sheafer
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Old 11th June 2013, 08:19 AM   #933
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This is awesome and very doable
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Old 11th June 2013, 12:42 PM   #934
miklos is offline miklos  Canada
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This is awesome and very doable
This looks little like a Paragon
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Old 11th June 2013, 01:54 PM   #935
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A classy clone, as I believe it was intended to be.
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Old 11th June 2013, 02:51 PM   #936
tomlang is offline tomlang  United States
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Are there plans somewhere for this?
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Old 11th June 2013, 03:39 PM   #937
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Dont think so.
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Old 21st June 2013, 01:06 AM   #938
nhuwar is offline nhuwar  United States
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A bit off topic but I've been calling GPA over and over again the past few months and never get an answer. Anyone had any luck getting through to them on the phone lately?

Thanks,
Nick
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Old 21st June 2013, 02:21 AM   #939
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Originally Posted by buzzforb View Post
slr,
How did you determine slot and how did they turn out. Ill be cutting wood in a week or so.
I PLAYED_WITH a few sims of an MLTL for the GPA604III with the idea of a Hiraga cabinet clone. I really like the look of Jean's clean industrial design. The total bottom 3-sided slot area matches the area of a 6" pipe port. Some room gain effects were factored into the sims. There was some discussion of using removable shims for adjustable lift of the cabinet above the bottom plinth to provide changing the port tuning. Round-over of the bottom cabinet edges and the plinth edges should perform like the rounded flange on a pipe port.

You will want to use the exact T/S parameters of your 604-model and run final cabinet and room gain simulations. I'm happy to further share my sims if you decide to continue in this direction, but stuffing material and technique play a major factor for MLTL performance.
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Old 21st June 2013, 09:13 AM   #940
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Quote:
Originally Posted by LineSource View Post
I PLAYED_WITH a few sims of an MLTL for the GPA604III with the idea of a Hiraga cabinet clone. I really like the look of Jean's clean industrial design. The total bottom 3-sided slot area matches the area of a 6" pipe port. Some room gain effects were factored into the sims. There was some discussion of using removable shims for adjustable lift of the cabinet above the bottom plinth to provide changing the port tuning. Round-over of the bottom cabinet edges and the plinth edges should perform like the rounded flange on a pipe port.

You will want to use the exact T/S parameters of your 604-model and run final cabinet and room gain simulations. I'm happy to further share my sims if you decide to continue in this direction, but stuffing material and technique play a major factor for MLTL performance.
I am interested, as my current designs will port to the bottom of the cabinet.
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