Great driver! Build it into a large 103Liter box tuned at 20.5 Hertz and it delivers very flat and distortion free sound down to ~19 Hertz.
It WILL go down to 15 hertz, all be it with less volume due to the high pass filter as it would cause over excursion of the driver. (14mm max).
Obviously, at such frequencies I do get strong standing waves in some locations. This can't be helped since my room is relatively small. Treating your room and/...
Great driver! Build it into a large 103Liter box tuned at 20.5 Hertz and it delivers very flat and distortion free sound down to ~19 Hertz.
It WILL go down to 15 hertz, all be it with less volume due to the high pass filter as it would cause over excursion of the driver. (14mm max).
Obviously, at such frequencies I do get strong standing waves in some locations. This can't be helped since my room is relatively small. Treating your room and/or using multiple subwoofers would help alleviate this problem.
Driving it with max 150Watts RMS.
All though I doubt I would use more then 60 watts in most cases.
Due to the low tuning and big box it won't give you amazing SPL levels with this setup. But For my 4 by 4 room at 105 DB @ 1 meter it's plenty!
I also tried using it sealed in a smaller box of about 45 Liters. This also works great but my 150Watt amp lacks a little bit in power for this setup.
So if you are going to be using it sealed, I would suggest getting at amplifier that can deliver a bit more beef.
All in all, great driver.
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Door Lenn M. on 6 September 2018