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Old 7th November 2004, 03:09 AM   #1
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Default "Timn8ster design pics..

We were having an "audio fair" here in Philippines and I heard all this speaker and its truly amazing. And one of the speaker(Fe127e) was design by "Timn8ster"
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Old 7th November 2004, 02:03 PM   #2
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Thanks Bernard. I'm happy you had a good time, I wish I could have been there. Along with my speakers in this picture are other Fostex projects built by "Handyman". He's a skilled workworker. I know most attendees of the Audio Fair are not familiar with DIY speakers so I wanted to show something that was easy to build, inexpensive and sounds great. From what I've been told I think it was a success.
I updated the web page containing the details for the "FQ127".

FQ127
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Old 7th November 2004, 02:15 PM   #3
djQUAN is offline djQUAN  Philippines
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too bad I wasn't able to come by and visit. I had the chance of buying the parts I needed for my next amp and I couldn't pass.
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Old 7th November 2004, 02:39 PM   #4
hacknet is offline hacknet  Singapore
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hi,

they look great!!

are there any simple formulas around to churn out a box for my drivers?

i`m trying to plonk in a pair of 6 1/2" drivers with a Fs of around 45hz and a Qts of about 0.5. is it as simple as lengthening the box? thank you for your advice!
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Old 7th November 2004, 03:55 PM   #5
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Quote:
Originally posted by hacknet
hi,

they look great!!

are there any simple formulas around to churn out a box for my drivers?

i`m trying to plonk in a pair of 6 1/2" drivers with a Fs of around 45hz and a Qts of about 0.5. is it as simple as lengthening the box? thank you for your advice!
There are many free software tools to help design a box.
WinISD is very popular. You could also visit
Quarter Wave which is Martin King's website. Best to start with a primer like this or this.
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Old 7th November 2004, 10:10 PM   #6
hacknet is offline hacknet  Singapore
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sorry, i think i din`t phrase my question correctly. i was hoping to do a similar voight pipe but with a 6.5" driver with a Q of 0.5 and an Fs of 45hz. because of the lower Fs, do i need to lengthen the box?
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Old 7th November 2004, 10:45 PM   #7
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Quote:
Originally posted by hacknet
sorry, i think i din`t phrase my question correctly. i was hoping to do a similar voight pipe but with a 6.5" driver with a Q of 0.5 and an Fs of 45hz. because of the lower Fs, do i need to lengthen the box?
In general, yes. The FE127E has an Fs of 70 so your design should have a longer length. However, the cross-sectional area (width*depth) is just as critical. The best thing to do would be to learn to use Martin's worksheets to know what dimensions are best.
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Old 7th November 2004, 11:40 PM   #8
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Timn8ter

I like that cat.
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Old 7th November 2004, 11:50 PM   #9
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Quote:
Originally posted by hacknet
because of the lower Fs, do i need to lengthen the box?
Most likely, yes.

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Old 8th November 2004, 02:09 AM   #10
hacknet is offline hacknet  Singapore
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i`d have another go at the spreadsheet...
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