Use the bass’s active/passive outputs if available
Connect one output to a clean DI
Connect the second output to an amp or separate preamp
Record both signals on separate tracks
Check phase alignment between the two tracks
Flip polarity on one track if needed
Set input gain so neither track clips
Blend the DI for clarity and the amp for tone
Use a splitter or dual-output box if the bass has only one output
Keep cable runs short and use balanced connections when possible
Monitor both signals while tracking
Label tracks clearly for later mixing