Good Evening everyone 
,
Me and my friend was wondering about a few drivers that are fullrange 8 inch woofers from fostex? The model numbers from fostex are;
1. FE 208ez
2. FF 225wk
3. Fw 208n
I going to be building speakers for a friend and this is what was asked? Does anyone have any ideas or helpful hints? Money wise worth it or not worth it? He is looking for a 8 inch drivers that can play fullrange and these are the ones I have seen. Jeff
,Me and my friend was wondering about a few drivers that are fullrange 8 inch woofers from fostex? The model numbers from fostex are;
1. FE 208ez
2. FF 225wk
3. Fw 208n
I going to be building speakers for a friend and this is what was asked? Does anyone have any ideas or helpful hints? Money wise worth it or not worth it? He is looking for a 8 inch drivers that can play fullrange and these are the ones I have seen. Jeff
Evening. I still am young enough that I have some top end left. The fostex 225 will not satisfy you in the top end no matter the enclosure. You will need a tweeter. FYI. I can not speak to the others but in the right box the tang band 1772 and 1808 work nice, but price is higher. What about a mark audio or the Dayton audio 8 ????
Enclosure kind? Well I would love a rear ported design if I can get away with it. Jeff
Yes I was plaining on useing a super tweeter with the above 8 inch fullrange drivers. I am aware they don't go as high as the smaller fullrange drivers. Also I am looking for a 8 inch driver that can go as high as it will let me. Tang band I have not looked into and the dayton looks nice but, does not go high enough for me. Jeff
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Totally agree. It seems like a "fullrange" needs a sub and a helper tweeter. I may be old, but I call that a three way.
I agree with this if the full range is too large.
What I like is a 3" full range with helper woofers.
That way you can cross them really low and avoid a lot of problems such as time alignment, polar response, phase anomalies and group delay around the crossover, (you can use shallower slopes) just to name a few.
Most 3" drivers will behave up top and will only get wonky above 10kHz off axis.
You can cross most 3" FR at 500Hz 1st or 2nd order.
I call this configuration FRA (full range assisted)
Instead of FAST (fullrange and subwoofer technology)
The later is crossed lower and should be used with subwoofers...as per the acronym.
I got this idea from sreten. (the FRA acronym)
What I like is a 3" full range with helper woofers.
That way you can cross them really low and avoid a lot of problems such as time alignment, polar response, phase anomalies and group delay around the crossover, (you can use shallower slopes) just to name a few.
Most 3" drivers will behave up top and will only get wonky above 10kHz off axis.
You can cross most 3" FR at 500Hz 1st or 2nd order.
I call this configuration FRA (full range assisted)
Instead of FAST (fullrange and subwoofer technology)
The later is crossed lower and should be used with subwoofers...as per the acronym.
I got this idea from sreten. (the FRA acronym)
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OO Ya I forgot about him. Thanks for the help. jm
I agree with this if the full range is too large.
What I like is a 3" full range with helper woofers.
That way you can cross them really low and avoid a lot of problems such as time alignment, polar response, phase anomalies and group delay around the crossover, (you can use shallower slopes) just to name a few.
Most 3" drivers will behave up top and will only get wonky above 10kHz off axis.
You can cross most 3" FR at 500Hz 1st or 2nd order.
I call this configuration FRA (full range assisted)
Instead of FAST (fullrange and subwoofer technology)
The later is crossed lower and should be used with subwoofers...as per the acronym.
I got this idea from sreten. (the FRA acronym)
Kinda like Visatons Stella Light diy speaker kit? A 3 inch fullrange in front and a 6 1/2 on the side of the box or a 8 inch. Jm
Yes, that's a great example.
The 3" they use is nearly identical in specs as the one I frequently use....the vifa tc9.
Although they are crossing that a little low for my tastes.
They are limiting dynamics crossing that low, and maybe inducing IMD and the Doppler effect at high power. (garbling at high freq.)
The 3" they use is nearly identical in specs as the one I frequently use....the vifa tc9.
Although they are crossing that a little low for my tastes.
They are limiting dynamics crossing that low, and maybe inducing IMD and the Doppler effect at high power. (garbling at high freq.)
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