I had this problem with all of my SDS9 pads at one time or another after a few months of use, and I think Jesper is right, or close to it. I found in each case after taking off the bottoms that one of the wires from the piezo was just barely disconnected from the contact, and then when the pad was hit hard enough, the wire would flap around a few times, make intermittent connection, and cause a double or triple hit.
Jeff
--- In Simmons_Drums@yahoogroups.com, jesper <jesper@...> wrote:
>
> Rick Gerken skrev:
> > I have a set of SDS 9's I bought new, years ago. I didn't use them for
> > quite a long time, but when I
> > powered them up the bass drum sounds like it has a fast echo on it. I've
> > tried everything I can think of,
> > echo on /off, changing sensitivity, nothing seems to work. Yet if I use
> > buttom tap the bass drum sounds
> > ok. Anyone have any ideas?
>
> Do you get the same result if you move the pads around, i e trigger the
> bass from a standard tom for example?
>
> That the tapping works makes me wonder if the piezo and/or the contact
> of the bass drum is broken/dirty.
>
> Start there and get back to us. :)
>
> --
> electronically yours, jesper
>
> - -- --- ---- ----- ---- --- -- -
> www.electronic-obsession.se
> www.myspace.com/machinepop
>