The Mission Engineering VM-1 Aero is a passive volume pedal built in an all-aluminum enclosure, with two footswitchable outputs and an LED glow plate in the base that lights to show which output is active1. It is made by Mission Engineering2.
Because it is passive, the VM-1 Aero is intended to sit first in the signal chain, right after the guitar, and to be used with passive electric guitar pickups. Awkward Sound's reviewer put it plainly: "this baby is specifically for instruments that have passive pickups"2.
What it does
As a volume pedal, the VM-1 Aero lets you raise and lower your guitar's level with your foot. Awkward Sound's reviewer found that "It adds dynamics and dimension, and smoothly transitions between higher and lower volumes" without stealing qualities from your sound2.
The pedal has two outputs that you switch between with a footswitch, and two modes1:
| Mode | Main output | Tuner output | Base color | |
|---|---|---|---|---|
| Active Mode | Zero volume at heel down, max volume at toe down | Disconnected | Green | |
| Tuner Mode | Attenuated: reduced volume at toe down, zero at heel down | Enabled | Red | 1 |
The isolated tuner output means you can tune silently in Tuner Mode, then switch back to full-volume operation, with the color of the LED glow plate on the bottom telling you which output is active at a glance1.
Passive versus active
The passive circuit is the heart of how this pedal behaves. On his demo video, Jay Leonard J explained that because it is passive, "you could actually use it as a gain knob for your OverDrive's like a fuzz with a fuzz you can clean up with your volume", something he says only a passive pedal can do1. He also found the tone changes as you roll back: "it gets a little bit warmer as you get quieter", unlike an active pedal which gives the same tone whether quiet or loud1.
That behavior comes with a placement requirement. For the best tone, Jay Leonard J's advice is to put it right after the guitar and make sure the guitar has passive pickups1, matching Awkward Sound's finding that the pedal is specifically for instruments with passive pickups2.
What reviewers said
- Awkward Sound (2024): the pedal "adds dynamics and dimension, and smoothly transitions between higher and lower volumes" and does not steal qualities from your sound2.
- Jay Leonard J (demo video, 2018): useful as a gain control for cleaning up overdrives and fuzz, with a warmer tone as volume drops1.
On his channel, Jay Leonard J demonstrated when a passive volume pedal makes sense, showing the VM-1 Aero's two footswitchable outputs and the LED glow plate that indicates the active output1.
Related pedals
If your setup does not fit the VM-1 Aero's passive-pickup requirement, other passive volume pedals in this lane include the Ernie Ball VP Jr, the Morley M2 Passive Volume, the Boss FV-500H and the Dunlop DVP1 Volume Pedal.
Questions
Is the Mission Engineering VM-1 Aero active or passive?
It is a passive volume pedal. Because it is passive, it is intended for passive electric guitar pickups, placed first in the signal chain, right after the guitar. Awkward Sound's reviewer puts it plainly: it is specifically for instruments that have passive pickups.
What do the two modes do?
In Active Mode the main output runs from zero volume at heel down to full volume at toe down, and the tuner output is disconnected. In Tuner Mode the tuner output is enabled while the main output is attenuated, giving reduced volume at toe down and zero at heel down. The base glows green in Active Mode and red in Tuner Mode.
Can I use it to clean up overdrives and fuzz?
Yes. Reviewer Jay Leonard J notes that a passive volume pedal can work like a gain knob for overdrives and fuzz, cleaning them up as you roll the volume down, and that the tone gets a little warmer as you get quieter, unlike an active pedal which keeps the same tone at every level.
Sources (2)
- When To Use A Passive Volume Pedal: Mission Engineering VM-1 Aero, JayLeonardJ channel, 2018-10-11
- Mission Engineering VM-1 Volume Pedal Review (2024), www.awkwardsound.com, 2025-01-23
