I've found the rattle problem

[Mark Sztainbok]

Following everyone's suggestions here, I took the back off my subwoofer and
tightened all the screws on the inside and outside. I still found however
that it made the rattle noise. On further examination, I found that the
sound is the result of air coming out of the speaker terminals and jacks. I
tested this by putting the sub on a rug and playing chapter 25 of Finding
Nemo (where Darla hits the glass) and noticed the noise. I then put a pillow
over the jacks and terminals at the back and found that the noise was pretty
much gone. So it looks like it is a fault with the subwoofer....

What is the best way to fix the problem of the air going through the
terminals, etc. I noticed some people talking about silicon and adhesive but
where do I put them in the subwoofer. All the terminals and jacks are under
circuit boards so I don't really have access to them....

Or would it be better to take the subwoofer back to where I got it from?
It's nearly 3 years old and I think out of warranty...

Any suggestions would be greatly appreciated...

Thanks,
Mark

"Mark Sztainbok" <mark@sztainbok.com> wrote in message
news:3fd3c2f1$0$29699$61ce578d@news.syd.swiftdsl.c om.au...
> In my home theatre, I have my subwoofer on a tiled floor and I'm finding
in
> some movies (such as Finding Nemo) which have some parts with a lot of
bass,
> there tends to be quite a bit of rattle from the subwoofer which sounds
> really bad. The level of the subwoofer is calibrated to 75db using as
sound
> meter to match my other speakers.I've also tried placing the subwoofer 1/3
> of the way into the room and into a corner, and also tried inverting the
> phase but none of these make any difference.
>
> What techniques are there for reducing rattle and the effects of it?
>
> Any help would be greatly appreciated.
>
> Mark
>
>
>

[Italo]

"Mark Sztainbok" <mark@sztainbok.com> wrote in message
news:3fd5b6e9$0$29700$61ce578d@news.syd.swiftdsl.c om.au...

> What is the best way to fix the problem of the air going through the
> terminals, etc. I noticed some people talking about silicon and adhesive
but
> where do I put them in the subwoofer. All the terminals and jacks are
under
> circuit boards so I don't really have access to them....

How about taking the amplifier out of the sub, housing it in an inexpensive
box unit from Dick Smith etc... and sealing the space left in the amp
(you've obviously got to allow for the connection wires)? It's not too
difficult at all, I've done it on my sub to stop it 'humming' because of the
amp.

--
Italo

[Gunther Gloop]

Mark Sztainbok wrote:
> Following everyone's suggestions here, I took the back off my
> subwoofer and tightened all the screws on the inside and outside. I
> still found however that it made the rattle noise. On further
> examination, I found that the sound is the result of air coming out
> of the speaker terminals and jacks. I tested this by putting the sub
> on a rug and playing chapter 25 of Finding Nemo (where Darla hits the
> glass) and noticed the noise. I then put a pillow over the jacks and
> terminals at the back and found that the noise was pretty much gone.
> So it looks like it is a fault with the subwoofer....
>
> What is the best way to fix the problem of the air going through the
> terminals, etc. I noticed some people talking about silicon and
> adhesive but where do I put them in the subwoofer. All the terminals
> and jacks are under circuit boards so I don't really have access to
> them....
>
> Or would it be better to take the subwoofer back to where I got it
> from? It's nearly 3 years old and I think out of warranty...
>
> Any suggestions would be greatly appreciated...
>

Is the problem with the terminals that are 'in use' or the ones that aren't?
Maybe better quality jackplugs/ banana plugs would help?
If the problem is air coming out of sockets not in use, how about plugging
them with some tissue or something?

-Kevin.

--
Reply to: news@SPAMBEGONEkevinforde.com

[just me]

"Mark Sztainbok" <mark@sztainbok.com> wrote in message
news:3fd5b6e9$0$29700$61ce578d@news.syd.swiftdsl.c om.au...
> Following everyone's suggestions here, I took the back off my subwoofer
and
> tightened all the screws on the inside and outside. I still found however
> that it made the rattle noise. On further examination, I found that the
> sound is the result of air coming out of the speaker terminals and jacks.
I
> tested this by putting the sub on a rug and playing chapter 25 of Finding
> Nemo (where Darla hits the glass) and noticed the noise. I then put a
pillow
> over the jacks and terminals at the back and found that the noise was
pretty
> much gone. So it looks like it is a fault with the subwoofer....
>
> What is the best way to fix the problem of the air going through the
> terminals, etc. I noticed some people talking about silicon and adhesive
but
> where do I put them in the subwoofer. All the terminals and jacks are
under
> circuit boards so I don't really have access to them....
>
> Or would it be better to take the subwoofer back to where I got it from?
> It's nearly 3 years old and I think out of warranty...
>
> Any suggestions would be greatly appreciated...
>
> Thanks,
> Mark
>
> "Mark Sztainbok" <mark@sztainbok.com> wrote in message
> news:3fd3c2f1$0$29699$61ce578d@news.syd.swiftdsl.c om.au...
> > In my home theatre, I have my subwoofer on a tiled floor and I'm finding
> in
> > some movies (such as Finding Nemo) which have some parts with a lot of
> bass,
> > there tends to be quite a bit of rattle from the subwoofer which sounds
> > really bad. The level of the subwoofer is calibrated to 75db using as
> sound
> > meter to match my other speakers.I've also tried placing the subwoofer
1/3
> > of the way into the room and into a corner, and also tried inverting the
> > phase but none of these make any difference.
> >
> > What techniques are there for reducing rattle and the effects of it?
> >
> > Any help would be greatly appreciated.
> >
> > Mark

The easiest solution would be to "blank off " the connections with dummy
connectors.
However I'd be concerned about the design of the subwoofer. If it always
operated in this fashion then a call to Loewe might be a good step. If it a
recent problem then, as has been suggested elsewhere, these connectors may
ordinarily be isolated from the air flow of the cabinet and a gap may have
opened up recently. In which case careful resealing should resolve the
problem.

[Mark Sztainbok]

It's the sockets that aren't in use...tissues might be an option....not sure
what I could put in the RCA cinch plugs as air is coming out of those as
well....

Mark

"Gunther Gloop" <me@privacy.net> wrote in message
news:br4e3v$280hvf$1@ID-173227.news.uni-berlin.de...
> Mark Sztainbok wrote:
> > Following everyone's suggestions here, I took the back off my
> > subwoofer and tightened all the screws on the inside and outside. I
> > still found however that it made the rattle noise. On further
> > examination, I found that the sound is the result of air coming out
> > of the speaker terminals and jacks. I tested this by putting the sub
> > on a rug and playing chapter 25 of Finding Nemo (where Darla hits the
> > glass) and noticed the noise. I then put a pillow over the jacks and
> > terminals at the back and found that the noise was pretty much gone.
> > So it looks like it is a fault with the subwoofer....
> >
> > What is the best way to fix the problem of the air going through the
> > terminals, etc. I noticed some people talking about silicon and
> > adhesive but where do I put them in the subwoofer. All the terminals
> > and jacks are under circuit boards so I don't really have access to
> > them....
> >
> > Or would it be better to take the subwoofer back to where I got it
> > from? It's nearly 3 years old and I think out of warranty...
> >
> > Any suggestions would be greatly appreciated...
> >
>
> Is the problem with the terminals that are 'in use' or the ones that
aren't?
> Maybe better quality jackplugs/ banana plugs would help?
> If the problem is air coming out of sockets not in use, how about plugging
> them with some tissue or something?
>
> -Kevin.
>
> --
> Reply to: news@SPAMBEGONEkevinforde.com
>
>

[Mark Sztainbok]

I think I'll drop it into the International Dynamics service centre and get
them to check it out as it does seem an odd thing for the subwoofer to be
doing.

Mark

"just me" <spam@nothanks.com> wrote in message
news:RroBb.19181$lm1.164451@wards.force9.net...
>
> "Mark Sztainbok" <mark@sztainbok.com> wrote in message
> news:3fd5b6e9$0$29700$61ce578d@news.syd.swiftdsl.c om.au...
> > Following everyone's suggestions here, I took the back off my subwoofer
> and
> > tightened all the screws on the inside and outside. I still found
however
> > that it made the rattle noise. On further examination, I found that the
> > sound is the result of air coming out of the speaker terminals and
jacks.
> I
> > tested this by putting the sub on a rug and playing chapter 25 of
Finding
> > Nemo (where Darla hits the glass) and noticed the noise. I then put a
> pillow
> > over the jacks and terminals at the back and found that the noise was
> pretty
> > much gone. So it looks like it is a fault with the subwoofer....
> >
> > What is the best way to fix the problem of the air going through the
> > terminals, etc. I noticed some people talking about silicon and adhesive
> but
> > where do I put them in the subwoofer. All the terminals and jacks are
> under
> > circuit boards so I don't really have access to them....
> >
> > Or would it be better to take the subwoofer back to where I got it from?
> > It's nearly 3 years old and I think out of warranty...
> >
> > Any suggestions would be greatly appreciated...
> >
> > Thanks,
> > Mark
> >
> > "Mark Sztainbok" <mark@sztainbok.com> wrote in message
> > news:3fd3c2f1$0$29699$61ce578d@news.syd.swiftdsl.c om.au...
> > > In my home theatre, I have my subwoofer on a tiled floor and I'm
finding
> > in
> > > some movies (such as Finding Nemo) which have some parts with a lot of
> > bass,
> > > there tends to be quite a bit of rattle from the subwoofer which
sounds
> > > really bad. The level of the subwoofer is calibrated to 75db using as
> > sound
> > > meter to match my other speakers.I've also tried placing the subwoofer
> 1/3
> > > of the way into the room and into a corner, and also tried inverting
the
> > > phase but none of these make any difference.
> > >
> > > What techniques are there for reducing rattle and the effects of it?
> > >
> > > Any help would be greatly appreciated.
> > >
> > > Mark
>
> The easiest solution would be to "blank off " the connections with dummy
> connectors.
> However I'd be concerned about the design of the subwoofer. If it always
> operated in this fashion then a call to Loewe might be a good step. If it
a
> recent problem then, as has been suggested elsewhere, these connectors may
> ordinarily be isolated from the air flow of the cabinet and a gap may have
> opened up recently. In which case careful resealing should resolve the
> problem.
>
>