Interesting SBL tweak.
Posted by: garyi on 13 December 2003
Something has been nagging me about my SBLS.
When I got a new gasket kit, I choose to attach the pads with small pins as apposed to the staples (I couldn't work out how to get the staples in without a staple gun)
Anyway this was a messy solution, but a solution non the less.
However the sbls have been moved albeit carefully since then but I hadn't got round to a re-seal, after spouting off about how important this was I thought I better take some of my own medicine.
As suspected the spikes had pierced the pads entirely and gone into the wood (I knew this already because the gap betwen bottom and middle box was very small.)
I took them apart today, the plan was to remove the pads and swap them around to utalise areas of the pads which had not been used, (I don't have a new kit to hand)
Well it was all a bit messy and the pads were frankly trashed.
So I started by filling the wood with a strong epoxy glue.
Then I used a lid from a chocolate tin, cut it into pads. The metal is different, slightly stronger but almost exactly the same thickness.
After attaching them with the correct staples (whice required hammering small holes into the pads first) I re-asembled the sbls. As hoped the gap between boxes was slightly larger as the spikes had not pierced the pads.
The out come.
Well its all a lot better, I have been suffering a degree of boom with the speakers both in corners, but this has gone a long way to fixing the problem.
It got me to thinking about the whole spike arrangment between the two boxes. For instance if there was a way would it not be better that they were not that at all.
I was thinking perhaps four small ball bearings which could be used to give you the gap whilst the silcon seals, then can be knockoed out with a ruler or something?
Or if the spikes are required, but the best form of decoupling also a must what about some thin peices of steel in place of the pads, which could be attached in a robust fashion such as four screws, one per corner?
Anyhoo, I am very pleased with the results.
When I got a new gasket kit, I choose to attach the pads with small pins as apposed to the staples (I couldn't work out how to get the staples in without a staple gun)
Anyway this was a messy solution, but a solution non the less.
However the sbls have been moved albeit carefully since then but I hadn't got round to a re-seal, after spouting off about how important this was I thought I better take some of my own medicine.
As suspected the spikes had pierced the pads entirely and gone into the wood (I knew this already because the gap betwen bottom and middle box was very small.)
I took them apart today, the plan was to remove the pads and swap them around to utalise areas of the pads which had not been used, (I don't have a new kit to hand)
Well it was all a bit messy and the pads were frankly trashed.
So I started by filling the wood with a strong epoxy glue.
Then I used a lid from a chocolate tin, cut it into pads. The metal is different, slightly stronger but almost exactly the same thickness.
After attaching them with the correct staples (whice required hammering small holes into the pads first) I re-asembled the sbls. As hoped the gap between boxes was slightly larger as the spikes had not pierced the pads.
The out come.
Well its all a lot better, I have been suffering a degree of boom with the speakers both in corners, but this has gone a long way to fixing the problem.
It got me to thinking about the whole spike arrangment between the two boxes. For instance if there was a way would it not be better that they were not that at all.
I was thinking perhaps four small ball bearings which could be used to give you the gap whilst the silcon seals, then can be knockoed out with a ruler or something?
Or if the spikes are required, but the best form of decoupling also a must what about some thin peices of steel in place of the pads, which could be attached in a robust fashion such as four screws, one per corner?
Anyhoo, I am very pleased with the results.