| Audio Tweaks - Tweak Ref.
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| Stuff dacron pillow batting into the ports on your ported speaker to tune the bass response |
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Kevin Enderle |
Excellent |
$10.00 |
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| Albert Von Schweikert |
Any ported speaker |
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| Get Dacron pillow stuffing (the white stuff), stuff into ports. Add more or pull some out and listen to the bottom end. Tune until you are happy. |
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| Open dacron package, use dominant hand. |
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| Many ported speakers exhibit boom when placed too close to a wall. This is a cheap way to tune the bass response. The more you stuff, the less bass you have and the tighter things get. Strike the balance and you are a happy camper. |
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| In small rooms, larger floor standing speakers can overwhelm you (ala Von Schweikert VR-4's). Stuffing the port really works to tune the bass response for best sound. |
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| Works great on those old musty audio couch pillows too! |
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| Gerardo |
Works
great, just as described I had problems with the
"boominess" of the bass coming from a pair of
small Paradigm Titans which are very close to the wall
(small room, no way to place them better). This
"tweak" solved most of the problem, though I
don´t know if there´s any downside to this. |
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| Marty |
Worked
on my homemade boxes with Eminence Delta12-LF’s
inside. Thanks! |
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| Sever |
Radioshack
Optimus STS-1230 responds reasonably well to this tweak.
The bass response was very stubborn to adjustments
making a "grinding" (but not rattling) noise
on lower than 80 Hz. (The box is very cheaply/poorly
built.) Now the bass it is more subdued, slightly
muffled, but also much more noise free. I assume the
pillow filling cuts down on turbulence and resonance in
ported boxes. My attempt at filling the boxes (STS-1230)
with the dacron did not help but filling the port does.
Thanks. |
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| Gene |
Definitely
suggest you read the Thiele & Small papers, to
understand what the port is and does, before doing this. |
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| Hans |
With
this tweak, you are essentially killing the port output
and turning your speaker into a very leaky closed box,
with much less low frequency response. You can achieve
more or less the same by turning down the 'bass knob' on
your amp. I suppose it could help in some cases where
the bass is boomy, but it is not a solution to the most
common problem in low frequency response in the
listening room: standing waves. This is assuming the
designer of the speaker did know what he was doing.
Better start by changing speaker placement and/or
listening position. |
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