Yes – advanced users can access 3- or 4-channel outputs from the SubPro. While the pickup is supplied with a stereo adaptor cable for two-channel operation, additional cabling options allow you to route grouped strings or individual signals into more channels.

As with the two-channel setup, the basic connection order is:
pickup → adaptor cable → Y-split → two guitar cables.

To expand further, you can add the same cabling setup to the other minijack output on the SubPro. This allows both outputs to be used at once, giving up to four discrete channels.

Please note: when the second jack output is used, the SubPro is effectively split in half. The switches still work in the same way, but the E–A–D strings can only be routed to the bass-side output, and the G–B–E strings can only be routed to the treble-side output.