MP-201 --> Boss DD-7

[HB3]

Just curious if anything horrible will happen if I plug the mp-201 into the expression jack of a boss dd-7...they say to only use a roland ev-5

[_DemonDan_]

Just curious if anything horrible will happen if I plug the
mp-201 into the expression jack of a boss dd-7.

Hi HB3,

I tend to be a little more fearless with my toys as I have friends at
work who know how to fix them, so please take that into consideration.

But, so far, I have never broken any pedal that had a TRS jack by feeding
it +5v. If it's nearby, I often go through an attenuator on my CP-251 and
slowly increase the depth while listening for when the full range of the
parameter has been maxed.

You could also try a volt-ohm meter to see what voltage is being supplied
to the jack. If it's +5v or greater... {insert standard denials of liability here.}

[HB3]

You know, I was gonna email Boss' tech support, but good Christ, they make you go through this horrible registration process even to email them....

[Alien8]

There is a chance that something horrible could happen. That's as much as I have found out about the whole thing. The problem is that not every company does an expressions pedal jack the same way. Most are synth friendly, however not all. I'm guessing that BOSS is a synth friendly company.

I have always used an attenuator to keep the voltage low when applying it to a pedal in the unknown. In every case I have found the limit of the pedal by patiently adjusting the max / min voltage. Some have done nothing at all, and some respond exactly as planned. Some have lower voltage maximums, and some higher.

If you have an attenuator like the CP-251 try it... You're going to fry the DD-7 if anything does go "wrong", your MOOG gear will be fine. I suspect that you should be fine though, just use the attenuator to find the limits.

[HB3]

Lol! Look at this!

Hello Hugh,

Unfortunately, there is no voltage spec published by Roland Japan for the DD-7. To avoid malfunction and possible damage, we can only recommend you use the BOSS EV-5 or FV-500 pedals.

Sincerely,
Roland US Product Support