Why measurements aren't the finish line
Headphone measurements are taken on a standardized acoustic coupler — typically the GRAS 43AG or a similar dummy head. The resulting frequency-response curve is the headphone's behavior on that ear, not yours. Your pinna shape, ear-canal length and resonance, head size, and how the cups seal on your specific skull all change what you actually hear by a few dB in several places.
An oratory1990 profile gets you most of the way there. Tuning by ear closes the gap.
What you'll need
- • MusEQ installed on macOS 14+
- • An Apple Music subscription
- • A web browser (any modern one)
- • A quiet room and 30–60 minutes
- • The headphones you want to tune
Start with a measurement-based profile
Your baseline. The best starting point is a measured curve, not blank.
Open MusEQ from the macOS menu bar and add your headphone if it isn't there already.
In the headphone's EQ profile list, click Import → OPRA. Search for your headphone and pick the oratory1990 entry. OPRA is an open community directory aggregating profiles from oratory1990, AutoEQ, and others — a single dependable source for measurement-based EQ.
You now have a baseline profile derived from a real measurement of your headphone. Listen to a familiar track on it to anchor your sense of what "measured neutral" sounds like to you.
Clone the profile so you can A/B
Keep the baseline intact. Tune a copy.
Duplicate the oratory1990 profile. Click the pencil icon on the new profile to open the EQ Editor. Then click Duplicate and name the new profile something like "HD650 — tuned by ear". You'll see the same filter chain as the baseline, ready to edit. Leave the baseline profile untouched — you'll need it for the A/B comparison in step 5.
Enable System Audio in MusEQ
So EQ applies to browser audio, not just Apple Music.
By default, MusEQ captures only Apple Music. To EQ web-based audio you need to enable system audio capture.
In the MusEQ menu, click System Audio if is not already highlighted. All audio your Mac plays — including audio from a browser tab — now runs through MusEQ's EQ.
Open Owliophile and follow its prompts
Make adjustments in MusEQ — not in Owliophile's own EQ.
Open owliophile.com in any browser. Owliophile walks you through identifying frequency regions and adjusting them until pink noise (or other test material) sounds even.
Important: wherever Owliophile asks you to nudge a frequency, do the nudge in the MusEQ EQ Editor instead of in Owliophile's on-page controls. That way your tuning lives permanently in your MusEQ profile and applies to all your future Apple Music listening — not just this browser session.
Work in small steps. A 1–2 dB change is often plenty. Pause between adjustments to avoid ear fatigue, which will lead you astray fast.
Confirm with real music in Apple Music
A/B against the baseline with level matching.
Queue up the tracks you know intimately — vocals you've heard a thousand times, a hi-hat with a personality, a kick drum that should hit a specific way, a sub-bass line that you feel rather than hear a boom.
Toggle MusEQ's A/B switch between the original oratory1990 profile and your tuned copy. MusEQ's automatic level matching cancels out loudness differences so you're hearing tonality, not volume. If something sounds off, return to step 4 and refine.
Save, switch back, relax
Your headphones, tuned to you.
When you're happy with the result, click Save in the new profile's tab. The tuned profile is now your headphone's default.
Disable System Audio so that only Apple Music plays through your DAC or leave it enabled and listen to YouTube through your browser or any other music player that doesn't use exclusive mode to your DAC. Just remember that MusEQ's bit-perfect playback feature only works with Apple Music.
Put on the album you've been saving for the right moment. Your headphones are now calibrated not to a dummy head but to your head — measurement as a foundation, your ears as the final word.
Tips for better results
- • Take breaks. Your ears recalibrate to whatever they're hearing within a few minutes. Step away every 10–15 minutes.
- • Cut, don't boost, when you can. A 3 dB cut at 4 kHz often beats a 3 dB boost at 250 Hz — it preserves headroom and avoids clipping.
- • Trust the auto pre-gain. MusEQ handles clip-prevention pre-gain automatically. You don't need to do that math yourself.
- • Save versions. Clone again before each big revision so you can roll back if a session led you in the wrong direction.
Related
Get started with MusEQ
14-day free trial. macOS 14+. Cancel anytime.
Get MusEQ