FV-50L

The BOSS FV-50H and FV-50L pedals I tried didn't appear to have any way to change a battery, so I assumed they were passive. BOSS does not see fit to inform us for sure. The keyboard doesn't have a mono output. I gave up on the project. What I really want to know...

I’ve done years of tours as a keyboard tech, and have been playing keyboards for 45 years. All I can tell you about hooking up anything other than headphones to a headphone output is that it simply doesn’t work..period. Why? Because the headphone out is a single stereo output, driven by a small preamp. There is a reason a headphone out...

Ernie Ball makes (or made) a passive in-line volume pedal with 2 inputs and 2 outputs; I have one. It does require using 2 sets of stereo cables, of course.