I can second "steinbergerstyler" from my experience over the weekend.

I noticed my sequencer was receiving Volume Control messages with a value of 0, coming from the Matrix 6 (keyboard) -- with nothing plugged in to pedal input #1. I plugged in my Roland EV-5 and found it could only muster values of 0 through 9.

I like this idea of adding some potency to the pedal output but I'm afraid I haven't got it in me to break out a soldering iron and work some kind of electronics wizardry. Will be looking for recommendations of pedals.

--- In oberheim@yahoogroups.com , "Nicole Massey" <nyyki@...> wrote:
>
> Okay, if it's a TS plug then we're very probably talking about a CV pedal
> instead of an expression pedal. I would suggest the trick I mentioned
> earlier to convert a volume pedal to a CV pedal and see if that works --
> you're talking a buck or two for the battery connector.
>
> -----Original Message-----
> From: oberheim@yahoogroups.com [mailto: oberheim@yahoogroups.com ] On Behalf
> Of steinbergerstyler
> Sent: Thursday, November 04, 2010 3:42 PM
> To: oberheim@yahoogroups.com
> Subject: [oberheim] Re: expression pedal for Matrix 6
>
>
>
> I plugged a Yamaha FC7 into the Pedal 1 jack--the Matrix 6 senses it and
> will transmit the appropriate CC# via midi to my computer but only for value
> 0-14 (i.e. out of 0-127). The pedal doesn't have any audible effect on the
> Matrix patches even when programmed appropriately, which leads me to believe
> it's a problem with the pedal or the Pedal 1 jack.
>
> Is this the wrong kind of pedal The manual says you should a standard
> guitar cable for the input (i.e. TS plug ) but as far as I know all
> expression pedals use TRS plugs.
>
> Any suggestions Anyone ever get Pedal 1 to work on the Matrix 6 or 6R)
>