The Mosky Compass Drive is a hand-built overdrive pedal from Mosky Audio. Mosky describes it as based on the ANALOG PRINCE OF TONE circuit, and RockBoard's PedalPedia lists it as an analog overdrive12. It carries three controls, Volume, Tone and Drive, which cover the usual overdrive duties: output level, tone shaping and the amount of drive1.
Power and size
Mosky specifies a DC 9V power supply with the center negative, rated at 100mA1. That current draw is higher than many compact overdrives pull, so on a pedalboard power supply it is worth giving the Compass Drive its own output rather than sharing one with other pedals.
The pedal measures 11.5 x 6.5 x 5 cm and weighs 300g1. That is a compact footprint by pedalboard standards, though taller than some low-profile pedals, so check the vertical space under a raised deck if you mount pedals that way.
The 100mA current draw means a battery is not the practical option here, and a shared daisy-chain output on a supply may not keep up. Plan a dedicated 9V center-negative output for it1.
Controls
| Control | What it does |
|---|---|
| Volume | Sets the pedal's output level1 |
| Tone | Shapes the treble response1 |
| Drive | Sets the amount of drive1 |
Mosky lists the three controls simply as VOLUME, TONE, DRIVE1. There are no additional switches or secondary functions listed for the pedal.
Where it sits in Mosky's range
Mosky builds a wide line of overdrives, from the Mosky Golden Horse and Mosky Mini Screamer Overdrive to the Mosky Hand-Wired Ultimate Drive and Mosky ULTIMATE Overdrive. The Compass Drive is the one in that range Mosky identifies as based on the Prince of Tone circuit, and it is sold under Mosky's hand-built effect pedals line1. For a wider look at the category, see Overdrive Pedals.
Videos
Pedal Experiments
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Questions
What circuit is the Mosky Compass Drive based on?
Mosky states the Compass Drive is based on the Analog Prince of Tone circuit. That means it follows the design of the Analog Man Prince of Tone, an overdrive and boost circuit known for a straightforward drive voice with a boost character. On the Compass Drive that circuit is voiced through three controls: Volume, Tone and Drive.
What power supply does the Mosky Compass Drive need?
Mosky specifies a 9V DC supply with the center negative, rated at 100mA. Because of that 100mA current draw, it is worth giving the pedal its own output on a pedalboard power supply rather than sharing a low-current daisy-chain output with other pedals.
Is the Mosky Compass Drive analog?
Yes. RockBoard's PedalPedia lists the Compass Drive's circuit type as analog, and Mosky describes the pedal as built on an analog circuit, the Analog Prince of Tone design.
Sources (2)
- COMPASS DRIVE_M-SERIES_Products_mosky pedal, moskyaudio.com
- Compass Drive by Mosky, RockBoard PedalPedia, 2026
