Yamaha DTXpress/DTXplorer/DTXtreme

OK, makes sence. I definatly do not have the expertise to put that
together. Not without a total step by step parts and how to guide.
What do you charge when you build them?


--- In DTXpress@yahoogroups.com, "Keith" <keith@...> wrote:
>
> --- In DTXpress@yahoogroups.com, "Scott" <papaholdy@> wrote:
> >
> > Sorry, but what is the DTXpander? The files related to it on the group
> > site are schmatics that I do not understand. Is it something I can
> > buy? Or do you have to make it? And does it allow you to split the
> > signals (IE an 3 zone pad in jack could handle 3 single pads plugged
> > into it with out signal bleed)?
> 
> The DTXpander is something I originally designed to allow people to
> plug two pads into one input (eg a tom input) to allow expansion of
> the kit using the unused stereo inputs.  For example, all the toms are
> single zone, but the inputs are dual zone, so it allows you to add
> three extra pads by "sharing" the tom inputs.  The extra pad will
> appear as the "rim" input of the tom.
> 
> It has limitations because you cannot get both the rim and main pad
> sound simultaneously, so it needs careful selection of what you use it
> for.
> 
> Another use is for interfacing drums like the Pintech Concertcast dual
> zone snare.  This uses two piezos rather than one piezo and a rim
> switch, so would need two inputs on the DTXpress.  With the DTXpander
> it can use one input.
> 
> Originally I made the circuit available for non-commercial use so
> people could build their own because I didn't have time to make them.
>  Since then I have made a PCB and built a few for sale for people who
> are not confident in building their own.
> 
> Keith.
>