FLX4 → Scarlett 2i2 4th → SYNCROOM/OBS
These are general checks, not model-specific compatibility certification. Start at low volume and change one setting at a time.
Signal path
- FLX4 MASTER RCA L/R
- 2i2 LINE IN 1/2
- USB → SYNCROOM / OBS
Check in order
- Connect FLX4 MASTER RCA L/R separately to 2i2 LINE inputs 1/2; avoid combining stereo into one balanced input.
- Use the documented LINE settings with INST off and start with low gain while checking both meters.
- Connect 2i2 to the computer and choose stereo inputs 1/2 in SYNCROOM or OBS, with required permissions.
- Plan monitoring through interface outputs if appropriate; check duplicate monitoring separately from returning received audio.
- If unresolved, record models, OS/app versions, OUT-to-IN routing, the last responding meter and comparison results in the support note.
Input meter does not move
- Trace DJ output to capture and locate the first missing stage.
Input exists; saved audio is wrong
- Check recorded tracks and duplicate monitoring, comparing a short saved file.
If unresolved
Record hardware models, OS/app versions, the last responding meter and test outcomes for official support. Do not infer hardware failure or a purchase requirement from unverified checks.
Official resources
Reviewed: 2026-10-18. Check model/version differences in official documentation. This does not indicate hardware testing.