FV-500H (high-impedance) refers to electronic audio devices with an input or output impedance of more than 600 ohms, perfect for electric guitars & bass

This is an extremely good volume pedal. I have not had a lot of experience with volume pedals, but I will try to break down each set of criteria in order to convey the quality of the product. CONSTRUCTION: Very well built, very solid pedal. It is huge though, bigger than my full tone wah pedal in every dimension. The part that moves the pot inside is also a metal blade, unlike other pedals that use either a rubber band or string to apply tension to the interior pot. TONE: There is very minimal tone loss. With the volume pedal, my signal is going through the volume pedal and a couple true bypass pedals (compressor, wah, and OD) When I hooked my guitar up directly to the amp, there was very minimal high end reduction. It basically sounds like you added a tone knob and turned it down to 8-9 instead of 10. Now, this could be the pedal, or it could also be the lengths of cable going into the pedal and then into the amp being shortened by half when I disconnect the pedals. That's being said however.... It was not enough loss to have me change any of my settings besides maybe my tone knob on the guitar I cranked up a tiny bit. In other words... if you are a tone hound and small things will drive you nuts, maybe a volume pedal isn't for you (inherent in the design of a volume pedal there will almost always be tone loss as a volume pedal IS a potentiometer which has resistance, no matter what you do). FEEL/USAGE Others have commented that there is a cliff, this is true. BUT something to keep in mind about potentiometers again.... they usually work as AUDIO tapers, what this means, is that it tapers your signal on a LOGARITHMIC scale, not a linear scale. Using a logarithmic scale, a volume pot at roughly volume 5 wont be giving you 50% volume, but instead will give you 10% (logarithmic scaling is NOT 1:1). So again, inherent in the design of something that has an audio taper, is that is operates on a logarithmic scale, which means, that as you keep decreasing the volume, the effect becomes more drastic as you roll more off..... I.E once the volume starts dropping... it REALLY starts dropping. THE TAKE AWAY even with some minor problems, this pedal is very handy. I play a lot of musicals and frequently I am being used as a percussionist, which in todays world means using a great deal of electronics. A volume pedals lets me adjust my electronic signal without having to drop to the floor to hit the mixer knob when a sound is too loud or too quiet. This pedal is also handy on the guitar, and even if you never wanted volume, it can be used as an expression pedal for another effect of some type. Overall, this is a very versatile piece of equipment and can be JUST the thing you need if you find yourself having to adjust volumes of electronic equipment on the fly and need an easy way to swell, diminish, or just adjust the output level.

I am free the high impedance version of this pedal. Figured I’d leave a review on how this type of pedal interacts first in chain for controlling gain of dirt pedals. I use fuzz face type pedals extensively while playing electric guitar, and am used to adjusting the volume knob on my guitar to control the fuzzface tone. This has become more of an annoyance for performing, always having to fiddle with the volume knob to find a sweet spot, so if figured I’d try to use a volume pedal and set the minimum position of the sweep for the clean tone I was looking for. This volume pedal does exactly what I had hoped it would be able to do. At the absolute minimum position, after fiddling with the volume knob on the side, I’ve managed to find a great clean tone for the fuzzface I use. The pedal all the way down in the maximum volume position, its classic cranked fuzz tone. As for tone suck, there’s a moderately noticeable tone suck. I think this is primarily due to me setting the volume pot on the side at about 50%, so my full signal isn’t truly going through the volume pedal, no matter what position I set the volume pedal. I remedied this by adding a “boost” pedal as the last pedal in my chain to counteract the tone suck of the volume pedal. So far this solution works great for me. I’m sure there’s still some “tone suck” occuring, but the convenience of controlling my gain with a simple foot pedal far outweighs any minor tone suck issues. As for the pedal itself, it’s built like a Boss pedal. It’s massive, works great, and is built like an absolute tank. Also the action on this thing is sublime.

Update, June 2025: Eight years later... I've played a LOT of gigs and practice sessions with this pedal, and it has performed flawlessly every time. The jacks stayed tight, the pedal stayed smooth and consistent, and other than some dust, this beast still looks almost new. It's been in bars, performance halls, outside on stage trailers, and even in the dirt -- it's truly a tour-grade instrument. However, after eight years, I was forced to replace it -- the metal pin on which the pedal pivots broke. For maybe a couple of years before it broke catastrophically, moving the pedal would often produce a little crunchiness in the audio, but this is something that eventually happens with all potentiometers (as most guitarists will confirm). But there's no other pedal like this (dual balanced channels), so I was more than happy to buy a second one. And I can say that the new one, eight years later, is identical to the old one -- no corner-cutting or skimping. Original review, October 2017: Works exactly as I expected it to -- perfectly! I bought this one specifically for the dual I/O (my keyboard rig is stereo), and also for the minimum volume adjustment. It's heavy, solid and sturdy, and doesn't slide around at all (on the right flooring, of course). It feel so well-built and reliable that I expect to be using this for years!

Efficient and heavy enough to stay put! Quality is excellent! Used it for stereo Kronos live...

Pedal aprovado. Vendedor nota 1000.

On a ce l on demande la vérité compte beaucoup il faut pas en faire de trop merci

Excelente pedal de expresión. Muy robusto como todo lo que hace BOSS, igual no es el mejor pero si buscas algo para que aguante rodaje y batalla de directo es una excelente elección

Good quality