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Old 24th June 2013, 06:48 PM   #11
Octavia is offline Octavia  United States
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Actually from the 10p graph no I don't think the driver has any BSC built in, unlike the 10.3 metal which does. Maybe Mark can chime in on that if I'm mistaken.
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Old 24th June 2013, 07:03 PM   #12
chrisb is offline chrisb  Canada
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Actually from the 10p graph no I don't think the driver has any BSC built in, unlike the 10.3 metal which does. Maybe Mark can chime in on that if I'm mistaken.

you could be right - it wouldn't be the first time I read the wrong graph, or otherwise put my foot in my mouth (interestingly enough the only thing I'm that flexible enough these days to do)
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Old 24th June 2013, 09:54 PM   #13
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Yes, there's some help built into most of the pensils; the alignment is intended to provide a pro-audio style broadband gain.
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Old 25th June 2013, 01:25 AM   #14
Octavia is offline Octavia  United States
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now if i only knew what a pro-audio style broadband gain meant
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Old 25th June 2013, 12:58 PM   #15
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I wondered if you clever blokes have advice on vent vs port with a pensil design. It seems to my lay understanding, that if the port (without tube) has the same surface area as the vent, performance will be essentially unaltered.

So a port hole with a diameter a little over 5cm would provide the same function?

I ask because I would like an easy option to having the entire front face one piece. And a hole is a simpler task to keep looking tight.

Thanks to all on these threads for the constant supply of information and inspiration.

Special thanks to Mark and Scott - hope my question didn't put any noses out of joint

Last edited by lorienblack; 25th June 2013 at 12:59 PM. Reason: Spelling mistake
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Old 25th June 2013, 06:06 PM   #16
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Radius a little over 5cm. It's been a few year since I need to consider pie.
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Old 25th June 2013, 10:05 PM   #17
chrisb is offline chrisb  Canada
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Radius a little over 5cm. It's been a few year since I need to consider pie.

so that'd be approx 10cm diameter, area approx 78.5cm^2

and while my wife is trying to keep me off the wasted carbs, I always like to consider a nice pie, or New York cheesecake

we'll leave it to Scott to advise if the high aspect ratio slot port/terminus is an integral factor in the Pensil architecture
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Old 25th June 2013, 10:45 PM   #18
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Providing the vent CSA is held per that of the stock box, and it's positioned as close to the bottom as physically possible, you should be fine with a circular. The aspect ratio of the vents in the pensil alignments (well, the ones published at any rate) is not sufficient to cause a significant functional change in performance; it isn't until we get to more extreme variations that it would start to become more critical.
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Old 26th June 2013, 01:00 AM   #19
chrisb is offline chrisb  Canada
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Maybe even a half circle of 10cm at the very bottom of front (or even back) panel?
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Old 26th June 2013, 01:55 AM   #20
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or New York cheesecake
Chocolate or Pumpkin with candied ginger for me.

jeff
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