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Old 28th November 2012, 01:56 PM   #21
Vostro is offline Vostro  South Africa
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thanks for all the time you spent on this
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Old 28th November 2012, 04:31 PM   #22
tinitus is offline tinitus  Europe
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well, the rest is simpler
maybe two more days

you do understand the drawing ?
and know how to do it, so far ?

oh, btw, your power amp...where ....?
probably best to put it in a seperate box
you can still place it on the outside backpanel
but if you want it, we could make a small closed room for it
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Old 28th November 2012, 06:40 PM   #23
Vostro is offline Vostro  South Africa
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Thanks Ill have the amp in a seperate box,
Its classAB so its heatsinks are bigger, so Im busy making an enclosure for the subamp and my stereo amplifiers, the modules are already made, and transformers bought, Just the metal work to do.

Ill set the Iq lower depending if its audible, to make it run cooler
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Old 28th November 2012, 08:13 PM   #24
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ok
any preference to measurements, within the limits we have
I mean, would it best for you to have it wide and low, or better higher than wide, or just fairly equally sized ?
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Old 28th November 2012, 11:13 PM   #25
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and with side panels on
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Old 29th November 2012, 06:57 AM   #26
tinitus is offline tinitus  Europe
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lid on
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Old 29th November 2012, 01:44 PM   #27
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Default Interesting bracing scheme

Interesting idea of using external bracing, and the bracing being used to form ports.
Are the spaces between the top and bottom braces included in the internal volume of the box?
It is hard to tell from the drawing.
.
Just wondering if the passages that would exist, if they are included in internal volume, have a resonance that could be excited to create higher harmonic resonances.
The resonance would probably be very high compared to the passband of a sub, but I wonder if they could create single note "ting".

If they are included in internal volume, or even if not included, maybe some stuffing would benefit the performance in several ways.

Dave
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Old 29th November 2012, 02:41 PM   #28
tinitus is offline tinitus  Europe
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Quote:
Originally Posted by Shadydave View Post
If they are included in internal volume....(edit)...... maybe some stuffing would benefit the performance in several ways.
yes, stuffing also
might consider them like volume buffers, when it gets tough
or since they are between the ports(left to right), maybe they could even do some form of symmetric port balancing
but its probably rubbish, I dont know

working on measurements
maybe later today
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Old 29th November 2012, 10:46 PM   #29
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Quote:
Originally Posted by Shadydave View Post
Are the spaces between the top and bottom braces included in the internal volume of the box?

It is hard to tell from the drawing.
side view of ports, and 'air-traps' with stuffing
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Old 1st December 2012, 10:45 PM   #30
tinitus is offline tinitus  Europe
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changed to 6 ports instead of 4
results in more available volume
also makes it easier to assemble

now measurements and cutting plan

shoot, forgot bracing on back panel

if you want to have the woofer countersunk, it could be done by adding another front baffle ?
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