Submarine Pickups themselves are quiet, with a much lower noise floor than a typical single-coil pickup. If you hear hum or unwanted noise:

Check gain staging – High gain settings exaggerate any noise in the system. Try reducing preamp gain or moving pedals further down the chain.

Confirm grounding – Make sure your guitar, amp, and pedals all share a proper ground. Ground loops or poor shielding in other parts of your rig are common causes of hum. In some cases, adding a DI box and using its ground lift switch can eliminate hum.

Use the right input – Always plug into an instrument (Hi-Z) input rather than a line input. Line inputs can cause both level loss and added noise.

SubPro routing – Combining too many string signals into a single output can lower overall output and worsen the signal-to-noise ratio. If you need all six strings on one output, split them across both channels (e.g. three per channel) and then actively combine using a mixer or ABY box such as the Boss LS-2. Pro tip – if your mixer allows it, try flipping the phase of one group of three channels. This creates a pseudo-humbucker effect that can further reduce hum.

Test with another setup – Plug the pickup directly into a different amp or interface with a short cable. If the noise disappears, the issue is elsewhere in the chain.

Cabling – Poor-quality or damaged cables are a frequent source of noise. Swap leads to test.

If the problem persists, please contact support.