All Relative,
large excursion have issues , better to have multiple woofers with smaller excursion than one with large excursion. Large xmax woofers are necessary when a high amt of low freq db levels and small size is a necessity...
large excursion have issues , better to have multiple woofers with smaller excursion than one with large excursion. Large xmax woofers are necessary when a high amt of low freq db levels and small size is a necessity...
It is possible for stuffed port "aperiodic" to make non-booming bass like a large sealed box speaker.
yes, it will have quite a lot of effect on that
basicly because you destroy the BR port
but maybe not perfectly ideal as aperiodic
you may need larger 'vent area'
and just because the vented BR alignment is wrong and results in boomy bass, the woofer may still not be much good for aperiodic or sealed either
there is another situation wher stuffing a port might help
say you have a ported design where the port isn't doing much good
then you are mainly only left with the possible bad side effects of the port
and the stuffing the port can give better phase behaviour
at least I have experienced this once
Nope ....
Two 8 inch woofers with 4 mm xmax vs one 8 inch woofer with 10 mm xmax.
Seen .
Boom has nothing to do with a speaker being BR or IB, it depends on room and/or speaker alignment.
BTW, made many a BR with highish Qt drivers (.6-.7), just need a larger enclosure, with the advantage of system getting below Fs of driver. It is the only practical way to get serious bass from small drivers, and it works.
please define 'small drivers' ?
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one problem though may be that woofers with small Xmax often also have higher Fs
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one problem though may be that woofers with small Xmax often also have higher Fs
vented with .6 qts ... BOOOM , Boom ... 🙂
Not really define High Fs.... 🙂
35hz is high ... 😕
45hz is what i would consider as being high and you can find speakers with 4-5 mm xmax in the 28 hz range. For subwoofers I would like xmaxx in the 11-18mm range, unless running multiples ...
45hz is what i would consider as being high and you can find speakers with 4-5 mm xmax in the 28 hz range. For subwoofers I would like xmaxx in the 11-18mm range, unless running multiples ...
If the total Sd of the two arrangements were the same, then the Xusable would be the same.
3off 8" drivers may be more equal to a single 12" Sd.
For a sealed box speaker good clear bass, the Veritas by Wayne J. http://www.startfetch.com/daniel/veritasspeaker.zip
The information was gone from the net; however, I recovered the information, compressed it for archival, and wrapped it up in that zip file.
Anyway, that speaker is big enough for decent bass from a sealed box.
The information was gone from the net; however, I recovered the information, compressed it for archival, and wrapped it up in that zip file.
Anyway, that speaker is big enough for decent bass from a sealed box.
49Hz for the roll -off is not particularly low, (although he does not specify what the response attenuation is at the quoted 49Hz).
And that is after he has taken room reflection and baffle step correction into account.
And that is after he has taken room reflection and baffle step correction into account.
if it has good power, it will probably also sound that way
like, a 6" may not sound like much at 50hz, but a 15" might
and since the shown Veritas has 2x 10" woofers, it will probably also sound quite powerful, yes
or at least it might be capeable of very good BSC 😉
like, a 6" may not sound like much at 50hz, but a 15" might
and since the shown Veritas has 2x 10" woofers, it will probably also sound quite powerful, yes
or at least it might be capeable of very good BSC 😉
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