Fixing ports on old sub?

Remove the plate amp.
Measure the diameter & length of the ports. e.g. 50 x 150 (2).
Snap off the internal structure of the ports leaving just the holes.
Replace with plastic flared ports e.g. 45 x 110
Or cut out another hole between the existing ports (where the label is), making a total of 3.
Purchase 3 flared plastic ports to achieve similar tuning.
e.g. In 25L
2 x 50 x 150 = 55hz
2 x 45 x 110 = 55hz
3 x 45 x 180 = 55hz
 
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I’ll test it out “ can’t find quotes “
The speaker inputs also need fixed if I ever want to use them . Basement system could use a sub.
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Remove the plate amp.
Measure the diameter & length of the ports. e.g. 50 x 150 (2).
Snap off the internal structure of the ports leaving just the holes.
Replace with plastic flared ports e.g. 45 x 110
Or cut out another hole between the existing ports (where the label is), making a total of 3.
Purchase 3 flared plastic ports to achieve similar tuning.
e.g. In 25L
2 x 50 x 150 = 55hz
2 x 45 x 110 = 55hz
3 x 45 x 180 = 55hz
It’s sounding a lot better problem was it was right beside me, Any cheap clay or anything to buy somewhere so I can flare the port ends ?
 
If you are hearing the ports make much noise, you are probably exceeding what the 125watt 10" is capable of.
Flaring the existing ports can reduce port noise, but won't change the sound.
Blocking one port will lower Fb (box tuning) which could reduce one note "boom", reducing output, but would increase port noise.
Screen Shot 2024-09-17 at 11.22.34 AM.png

Adjustment of room position, volume, phase and crossover frequency will have more effect on the sub's sound than changing the ports.
 
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