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Old 3rd October 2005, 03:41 PM   #1
MPM is offline MPM  United States
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Default Reusing speaker cabinet for fe167

The recommended BR enclosure for the fe167 is 15 liters with a port 2" x 2". I've got an 11 liter enclosure that when the mid and tweeter are removed leaves a cutout for the fe167 and a cutout for the port. But, the hole the tweeter was in is 2.5". What length port will I need to keep the tuning close to whats recommended with the smaller cabinet size? These will not be the final cabinet as I plan to build the proper ones early next year after we move into the new house
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Old 3rd October 2005, 08:02 PM   #2
marcusf is offline marcusf  United States
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Hi;

At least according to the sim program that I use, the new length for the port would be 5.5 inches. This assumes that everything other than the volume and the port diameter is the same. Hope that helps.
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Old 3rd October 2005, 08:09 PM   #3
MPM is offline MPM  United States
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What will that port be tuned to? Will a shorter port raise or lower the tuning? I don't mind a slightly higher tuning since I'll be using a sub for lower reinforcement.
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Old 3rd October 2005, 08:21 PM   #4
joensd is offline joensd  Germany
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Tuning frequency with 2.5"dia and 5.5"lenght will be around 68Hz.
I´ve built the 15l-recommended as well thinking it might go well with a sub but integration was not good enough for me.
If you consider making new cabinets go for at least a 24l-BR (as I did; have a look for example at Bob Brines FB-16/or even the FT-1600 if space permits)
Sub integration with the extended volume is so much better than with
15l but would be enough for a HT-only-setup (that was the intention anyway)

But as always YMMV and your room acoustics/size could help that the smaller cabinets+sub suffice/integrate well.

greets
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Old 3rd October 2005, 09:33 PM   #5
MPM is offline MPM  United States
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Thanks joensd. The fe167's are my first nice point source speakers so I'll be building more than one cabinet for them. Thats part of the fun to me.
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Old 5th October 2005, 11:08 AM   #6
joensd is offline joensd  Germany
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Quote:
The fe167's are my first nice point source speakers
Now, that´s one hell of a good first choice.
I do believe they are one of the nicest compromises in the fullrange world.
Quote:
I'll be building more than one cabinet for them. Thats part of the fun to me.
Even better, then you´ll hear the differences yourself.
Be sure to try out baffle step compensation filters as well.
They make them sound much more "round".
I`m using a 2.2mH coil with resistors 4ohms+ in parallel at the moment but that was what I had in my drawer and is maybe not optimal.

greets & loads of fun with a lovely driver
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