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I am thinking of using this 12 inch subwoofer as a woofer xover at 500Hz.
Do you think it will work well crossing at 500 Hz ?
Also appreciate any comment on this driver from those whom have use this.
TIA
Alan
Follow Ups:
No. It goes up there and it won't be too directional at 500 Hz but it starts breaking up there and you want at least one octave and preferably 2 octaves at 4th order roll off or it will affect the clarity of the reproduction.. So about 120 Hz sounds good and there are good mid-range drivers that can easily go down that far.
Give us more information.
Is this *really* a subwoofer application, aka, where you would put a sub in a box with a plate-amplifier and put it in the corner and use in mono?
Or is this for two "stereo" subs, one under each speaker?
Or is this to be the woofer in a three-way speaker design?
I have no experience with this woofer - I am not a big Morel fan.
You could use this woofer as high as 500Hz if you have a steep enough low-pass filter. The break-up peaks at 800 and 1600Hz may taint your midrange if too shallow a slope is used.
But - If you're designing a three way, why would you use a midrange driver that needs to be crossed at 500Hz? There are excellent midrange and midbass drivers available which can easily go down one (or even two) octaves lower than that.
So please firm up the details of you project and your reasoning here, so I can stop speculating and perhaps start helping you instead! :P
All that said, I would love to hear this woofer in a proper enclosure with some serious power behind it.
Cheers,
Presto
I am trying to use this Morel TiUW 1258 as a woofer of a 3 way normal application crossing at 500 Hz 18db. A normal 3 way speaker.
I have already selected the mid driver which is the Volt VM752. The reason crossing at 500 Hz is that the volt mid dome driver is recommended to cross at 500 Hz.
Any idea if it will work well ?
Alan
The problem besides the breakup at 500 Hz for the Morel is the Volt mid has a resonance at 400 Hz. For a proper crossover this has to be factored into the crossover design. As far as I know the only way to do this is with a very good computer design system using numerical analysis. This is not an easy design except for real pros who have been doing this a long time.
You're well into midrange territory at that frequency. If you really plan to use it as a "subwoofer", you'd want to cross at no more than 120Hz and probably more like 70-100Hz...
-RW-
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