How well do you actually know your speakers? Most producers and engineers assume their monitors are giving them an accurate picture — but room acoustics, speaker placement, and hardware limitations mean you’re almost certainly not hearing the full frequency range.
This simple test will tell you exactly what your system can and can’t reproduce. Play the video below (or download the high-quality WAV file) and listen carefully.
Download the Full-Quality Frequency Sweep
For the most accurate results, download our uncompressed WAV file — YouTube’s audio compression can affect the test, especially at the frequency extremes.
→ Download the 20Hz–22kHz Frequency Sweep (WAV)
Play it at a moderate, consistent volume. Don’t adjust the level during the sweep — you want to hear your system’s natural response.
What to Listen For
As the sweep moves from 20Hz up to 22kHz, pay attention to these things:
- Where does the low end disappear? Most small studio monitors drop off around 50–60Hz. If you can’t hear anything below 80Hz, your speakers aren’t showing you the sub-bass range — which means your low end decisions are essentially guesswork.
- Are there any resonant frequencies? If certain notes seem to jump out louder than others, that’s your room talking. Standing waves and room modes create peaks and dips at specific frequencies, and these can seriously mislead your mixing decisions.
- Where does the high end cut off? Most people can hear up to around 16–18kHz, though this naturally decreases with age. If your speakers roll off earlier than your hearing does, you may be over-boosting high frequencies in your mixes.
- Is the sweep smooth or uneven? An even, gradual sweep suggests a well-treated room. Bumps, dips, and sudden volume changes indicate acoustic problems worth addressing.
Why This Matters for Mixing
Every mixing decision you make is filtered through your monitoring system. If your room has a 200Hz bump, you’ll instinctively cut 200Hz in every mix — and your tracks will sound thin on other systems. If your speakers can’t reproduce sub-bass, your low end will be inconsistent from track to track.
Knowing your room’s problems is the first step to compensating for them. Professional studios invest heavily in acoustic treatment for exactly this reason — but even without perfect treatment, simply knowing where your system lies to you is incredibly valuable.
What to Do Next
If the test reveals significant problems, consider:
- Acoustic treatment — even basic bass traps in the corners and absorption panels at first reflection points can dramatically improve your room’s response
- Repositioning your monitors — moving speakers away from walls and adjusting the listening triangle can reduce room mode issues
- Reference headphones — a good pair of open-back headphones (read our headphone guide) gives you a second opinion on your mix decisions
- Professional mixing and mastering — if your room isn’t giving you accurate information, having your tracks finished in a properly treated studio ensures they’ll translate everywhere. Get in touch to discuss your project.
Learn More About Mixing
Understanding your monitoring environment is just one piece of the puzzle. If you want to learn the full professional mixing process — from bus routing and compression to reverb and getting punchy kick drums — check out The Official Guide to Mixing.