To learn how to fix studio monitor hiss, the key is gain staging: turn your monitors’ input level down and your interface’s output up, rather than the other way around. A constant hiss from your speakers is usually the monitors amplifying a weak signal too hard. This guide explains why that happens and the other common causes of monitor noise.
Some self-noise is normal — every powered monitor has a little hiss audible with your ear right at the tweeter. The problem is when you can clearly hear it from your listening position. That’s almost always fixable without new gear.
Why monitors hiss
Active monitors contain their own amplifiers. If the monitor’s input gain is cranked high and your interface sends a weak signal, the monitor amplifies both the signal and the noise floor, so you hear hiss. Get the gain balance right and the hiss drops dramatically.
How to fix studio monitor hiss with gain staging
Set levels in this order:
- Turn the input/volume control on the back (or front) of each monitor down — to around the middle or the manufacturer’s recommended “unity” mark if it has one.
- Turn your interface’s monitor output up to send a healthy signal.
- Use the interface’s volume knob as your day-to-day level control, leaving the monitors set and forgotten.
This sends a strong, clean signal into the monitors so their amps don’t have to work as hard, which lowers the audible hiss. It’s the same principle as gain staging in a mix. If you’re calibrating from scratch, our guide on positioning studio monitors helps you set a sensible reference level.
Use balanced cables
Connect your interface to your monitors with balanced cables — TRS or XLR — not unbalanced TS cables or RCA. Balanced connections reject noise picked up along the cable run, which cuts hiss and hum, especially on longer runs. This is one of the cheapest, most effective fixes. If you also hear a low constant hum rather than hiss, that’s more likely a ground loop — see fixing a ground loop hum in your setup.
Track down the source
Work out whether the noise comes from the monitors themselves or from upstream gear:
- Unplug the input cable from a monitor. If the hiss stays, it’s the monitor’s own noise floor (turn its gain down). If it stops, the noise is coming from your interface or computer.
- Mute or close everything in your DAW. Lingering hiss with nothing playing points to a noisy source or a plugin adding noise.
- Try a different source into the monitor (phone, another interface) to isolate the culprit.
If the noise traces back to the interface, see fixing a noisy or humming audio interface. For an outright buzz or rattle rather than hiss, see fixing buzzing coming from studio monitors.
Other hiss culprits
- Cheap or failing cables add noise — swap them for known-good balanced leads.
- Nearby power supplies, dimmers and Wi-Fi routers can induce noise; move them away from monitor cables.
- Excess gain in the chain — a hot preamp or a plugin pushing levels hard amplifies the noise floor downstream.
Once the noise is gone, keep your speakers in good shape with maintaining and caring for studio monitors. More fixes are on the studio monitors hub.
Frequently asked questions
Is some hiss from studio monitors normal?
Yes. All active monitors have a small amount of self-noise from their amplifiers, audible with your ear right at the tweeter. It only becomes a problem when you can hear it clearly from your mixing position, which usually means the gain balance needs adjusting.
Why does turning the monitor volume down increase the hiss relative to my music?
If the monitor’s own gain is set high and you control level only from a weak source, the amp boosts the noise floor. Send a stronger signal from the interface and set the monitor gain lower, so the music sits well above the noise.
Will balanced cables really reduce hiss?
They reduce noise picked up along the cable run and reject interference, which often removes audible hiss and hum. They won’t fix self-noise generated inside the monitor itself, so combine balanced cables with proper gain staging.
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