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In Reply to: RE: help with enclosure volume posted by Coner on April 15, 2016 at 10:51:25
thanks all for the replies,
is the 20ltr sealed a suggestion for 53hz response rather then achieving anything lower ? and are they saying a large 40-50ltr sealed enclosure is not suggested for a reason ? it would be nice to have other size enclosure responses before buying them. i guess emailing them is gonna be the next move
many thanks
Follow Ups:
Too bad they don't include frequency response charts for prospective builders. Remember that in a closed box, the roll off after resonance is 2nd order. In a ported box it's 4th order. While 53Hz sounds kind of high compared to the ported box, the net result may be pretty close anyway. Download a free ware, WinISD and model both boxes. That should give you a good idea what to expect. Another suggestion, if you're going to get a sub plate amp, get one with a bass boost. That will also help boost the lower end.
There is no beer in food, but there is food in beer.
Edits: 04/15/16
thanks for that software recommendation i need to make space on the laptop to use it but it'll be handy for sure.
I'm curious if there might be a particular reason why you would choose to use an 8" driver intended and optimized for a subwoofer application for use as a woofer in a 2-way floorstander. I wouldn't expect the driver to perform satisfactorily at frequencies well above its designated function as a bass driver.
Yes I mentioned that too. Everyone else seems to have missed that including the OP. It's a deal breaker really unless a horn that goes low is used for HF. Yuck.
ET
I agree, Awe-d-o-file. Typical 8" woofers tend to perform poorly for a 2-way loudspeaker design, since midrange beaming occurs well below that of a typical 2-way crossover point. It's a substantial trade-off to use an 8" woofer if an extended or enhanced bottom end is desired, since a 6.5" midwoofer is better suited for a 2-way, and if the loudspeaker system is properly designed can produce substantial bass along with well-behaved upper midrange characteristics.
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