If I had pound for every time I've heard someone say that stuffing the port reduced the bass but also killed the mids or killed the sound. Tried It myself In the past and didn't like the result either. To me It's like trying to fix the symptom rather than find a cure for the real problem.
He's building new cabinets because the old ones are damaged, so best to do things right In the first place.
It wont make any difference to the tuning. You can put the port on the outside of the box, so flush with the inside wall and It will hardly make a difference.
Thanks! Originally the inner end of the 19cm long tube is very close to the front baffle (21cm inner depth) but as you say I don't have to bother with that if with a deeper cabinet the tube will get further apart from the baffle.
By the way, speaking of the port tube, calculating internal volume do we include tube volume or exclude it;
Being so close the the baffle could affect the tuning frequency. If you'd like to know the tuning frequency but don't have any measuring gear you could try this: YouTube
Scroll down to Calculating port displacement.
Wow, you are so helpful! I learned quite a few things.
Thanks for the links, very helpful indeed (the beans test is funny, thankfully my wife stores always chickpeas in the kitchen)
Thanks for the links, very helpful indeed (the beans test is funny, thankfully my wife stores always chickpeas in the kitchen)
Stuffing the port kills output around the tuning frequency - there are no mids there to speak about. If the bass is overblown in that frequency band, stuffing the port will reduce the bass and will not affect the mids. I turned a number of different vented boxes with moderately-to-high Qts woofers to effectively sealed boxes with stuffing the vent (and the enclosure) - sound quality was way better to me and, more importantly, to the owners of the loudspeakers.
Many respectable loudspeaker manufacturers deliver their boxes with additional foam bungs to block the vents, if necessary.
I overlooked the fact that original cabinets are damaged. In that case measuring the woofer TS parameters and designing a new, optimal cabinets are the right things to do.
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I never said there was. I said It can kill the midrange.
It can work well with high q woofers.
Many manufacterers do and on the hifi forums I use lots of people Including myself report negative affects from using them.
I suppose It wouldn't do any harm to try stuffing the port, but a better ported box would be preferable.
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