Vox V863-CA Review

A 3-in-1 wah, envelope follower, and envelope controller that opens up a huge range of filtering possibilities.As an avid—perhaps rabid—musical psychedelicist, I’ve had a lot of wah in my life. Maybe too much. In recent years, I seem to have had my own personal version of the rock world’s 1968 epiphany, where everyone ditched their wah and fuzz, moved to the country, and put Music from Big Pink on constant replay. Recently, though, I’ve been in touch with my wah side again—this time by way of JJ Cale’s chilled out swells and Curtis Mayfield’s mellower wah flourishes. And through these applications of treadle-actuated filtering, I’ve rekindled my love for the more psychotic side of the effect. Vox’s V863-CA will happily wind along either the gentle path or the hard road. It has a nuanced filter taper that makes slow, focused sweeps sound sweet and vocal, and it responds to quick-twitch moves with precision. But the real magic in the V863-CA is its combination of envelope generator (auto wah) and envelope follower functions, as well as its ability to switch between wah and the two filtering modes merely by lifting your foot from the treadle.It Just Takes A TouchYou can only use either the envelope generator/wah combination or the envelope follower/wah combo at any given time—a small price to pay for the versatility at hand here. You can, however, select between those two modes with a small mini toggle on the lower left side of the enclosure—which, incidentally, seems well out of the way of accidental triggering. There is a third position for wah only, which is useful for accessing cocked wah tones. But you can switch any of the effects into bypass mode with a click in the toe-down position.Vox’s V863-CA will happily wind along either the gentle path or the hard road.Inspired by Dead and Company’s recent shows celebrating the Grateful Dead’s 60th anniversary, I explored the envelope follower section of the V863-CA in honor of Jerry Garcia. The V863-CA performs admirably in this capacity. Using the polarity switch, you can shape the filter’s reaction to a dynamic trigger. In one mode the filter’s voice opens with a “wow”-like tonality; in the opposite polarity it yields a snappier effect. It’s a pretty sweet-sounding envelope filter, too—particularly in the more open, vowelly, Garcia-like mode. The sensitivity control, which governs the filter’s reaction to picking dynamics, isn’t the most nuanced, and I preferred to keep the sensitivity wide open and control the sound via my picking and guitar volume (which can dull the dynamic response if you turn down too much). Still, the biggest thrill of using the envelope follower mode was the ability to launch from a chilled, quacky, Garcia run to Eddie Hazel “Maggot Brain” intensity just by putting my foot on the treadle. This is a genuinely inventive feature that will open up possibilities to players outside the psychedelic sphere.The envelope generator, or auto wah function, can be shaped with both the decay control and the attack knob, which manipulate the filter’s reactivity. (Both knobs have useful center detents). Between the two controls you can craft syrupy response for spacey, slow jams (delicious with loads of delay) or snappy, funky interactions that will keep up with rapid-fire Nile Rodgers-style licks.
At $279, Vox’s Vietnam-made V863-CA seems expensive until you dig deep into its bag of tricks. And though it might appear specialized, I had little problem finding novel uses of the combination effects that broke the funky and acid-fried wah molds and led to more unusual ends. But the coolest part of the V863-CA experience remains the ability to seamlessly move from wah to filtering functions simply by lifting one’s foot. It’s a smart way to shift between verse, chorus, and solo segments without tap dancing between multiple pedals. The same functionality can generate dramatic changes in mood and dynamic, inspiring whole compositions and arrangements. In that respect, the V863-CA delivers value in abundance.