1MORE Fit Open Earbuds S50 EQ settings for Mac
Measured EQ correction for the 1MORE Fit Open Earbuds S50, the specs that matter, and what changes when you use them with a Mac. Copy the settings and apply them in one click.
The short answer
- Adds about 6 dB of bass and low shelf.
- Adds about 5 dB around 200 Hz.
- Cuts about 4 dB around 2.3 kHz and 700 Hz.
- Cuts about 5 dB around 4.5 kHz.
Fit Open Earbuds S50 at a glance
Open-ear true wireless earbuds with directional sound, released in 2024. Official specifications from 1MORE:
- Driver
- 14.2 mm DLC dynamic
- Bluetooth
- 5.3
- Battery
- Up to 10 h (buds) + 38 h (case)
- Weight
- 9.4 g per bud
- IP rating
- IPX7
Sources: 1MORE: Fit Open Earbuds S50 product page.
Using the Fit Open Earbuds S50 with a Mac
Codec: AAC, not LDAC. The Fit Open Earbuds S50 support AAC, SBC and LDAC, but macOS doesn't support LDAC. On a Mac they play over AAC, which carries the full 20 Hz to 20 kHz range at standard sample rates (44.1 or 48 kHz). The 40 kHz hi-res figure only applies to LDAC, which Macs don't support.
Calls sound worse than music. As soon as an app uses the earbuds' microphone (Zoom, FaceTime, a dictation shortcut), Bluetooth switches to hands-free mode, which has much lower audio quality. Pick your Mac's built-in microphone as the input to keep the Fit Open Earbuds S50 in stereo music mode.
Noise control. TuningMac can't switch 1MORE's noise cancelling modes yet, so use the button on the earbuds or 1MORE's app on your phone. The EQ, volume and output features all work.
What the measurements show
This correction comes from AutoEQ, based on HypetheSonics' measurements of the Fit Open Earbuds S50. It shows how much to boost or cut at each frequency to bring the earbuds closer to AutoEQ's neutral target:
- Adds about 6 dB of bass and low shelf.
- Adds about 5 dB around 200 Hz.
- Cuts about 4 dB around 2.3 kHz and 700 Hz.
- Cuts about 5 dB around 4.5 kHz.
Fit, ear tips and your own ears all change what you hear, and neutral isn't everyone's favourite sound. Use this as a starting point, then adjust by ear.
Apply it in TuningMac (parametric EQ)
TuningMac's Advanced EQ imports this format directly. Copy the settings, then:
- Open TuningMac ▸ Settings ▸ Advanced EQ with your Fit Open Earbuds S50 connected.
- Turn on Use Advanced EQ for Fit Open Earbuds S50 (or whatever you've named them on your Mac).
- Choose More ▸ Paste from Clipboard.
TuningMac saves it for your Fit Open Earbuds S50 and loads it whenever they connect.
Preamp: -6.3 dB Filter 1: ON LSC Fc 105 Hz Gain 5.6 dB Q 0.70 Filter 2: ON PK Fc 2289 Hz Gain -4.0 dB Q 0.76 Filter 3: ON PK Fc 199 Hz Gain 5.3 dB Q 0.60 Filter 4: ON PK Fc 729 Hz Gain -4.0 dB Q 0.95 Filter 5: ON PK Fc 9405 Hz Gain -6.2 dB Q 3.80 Filter 6: ON HSC Fc 10000 Hz Gain 2.7 dB Q 0.70 Filter 7: ON PK Fc 4507 Hz Gain -4.8 dB Q 3.97 Filter 8: ON PK Fc 3349 Hz Gain 4.3 dB Q 4.46 Filter 9: ON PK Fc 6140 Hz Gain 2.8 dB Q 6.00 Filter 10: ON PK Fc 2503 Hz Gain -2.0 dB Q 5.65
| # | Type | Frequency | Gain | Q |
|---|---|---|---|---|
| 1 | Low Shelf | 105 Hz | +5.6 dB | 0.70 |
| 2 | Bell | 2.29 kHz | −4.0 dB | 0.76 |
| 3 | Bell | 199 Hz | +5.3 dB | 0.60 |
| 4 | Bell | 729 Hz | −4.0 dB | 0.95 |
| 5 | Bell | 9.4 kHz | −6.2 dB | 3.80 |
| 6 | High Shelf | 10 kHz | +2.7 dB | 0.70 |
| 7 | Bell | 4.51 kHz | −4.8 dB | 3.97 |
| 8 | Bell | 3.35 kHz | +4.3 dB | 4.46 |
| 9 | Bell | 6.14 kHz | +2.8 dB | 6.00 |
| 10 | Bell | 2.5 kHz | −2.0 dB | 5.65 |
Preamp: −6.3 dB. It lowers the overall level so the boosts don't clip.
Prefer simple sliders? The 10-band version
No Advanced EQ needed: AutoEQ also gives values for a standard 10-band equalizer, the same bands as TuningMac's main EQ. In the menu bar popover choose Custom, set each slider, and set the preamp to about −7.0 dB.
Values in dB, at 31 Hz to 16 kHz. The parametric version above is more precise.
Questions
Does the 1MORE Fit Open Earbuds S50 use LDAC on a Mac?+
No. The Fit Open Earbuds S50 support AAC, SBC and LDAC, but macOS doesn't support LDAC, so on a Mac they play over AAC. That carries 20 Hz to 20 kHz audio at standard sample rates; Sony's hi-res LDAC mode is for Android phones and other devices that support it.
What are the best EQ settings for the 1MORE Fit Open Earbuds S50?+
AutoEQ's correction, based on HypetheSonics' measurements, adds about 6 dB of bass, adds about 5 dB around 200 Hz, cuts about 5 dB around 4.5 kHz, with a preamp of -6.3 dB. The exact values are on this page, ready to copy. Treat it as a neutral starting point and adjust to taste.
Why do my 1MORE Fit Open Earbuds S50 sound bad on calls on a Mac?+
When an app uses the earbuds' microphone, Bluetooth switches from stereo music mode to a hands-free call mode with much lower audio quality. To keep music quality during calls, choose your Mac's built-in microphone as the input instead. TuningMac's Input list does this in one click, and its Device Info shows which mode you're in.
Can I control the 1MORE Fit Open Earbuds S50's noise cancelling from a Mac?+
Not yet. TuningMac can't switch 1MORE's noise cancelling modes yet, so use the button on the earbuds or 1MORE's app on your phone. The EQ, volume and output features all work.
Should I turn off the EQ in 1MORE's app?+
For the most accurate result, yes. An equalizer set in 1MORE's app is applied inside the earbuds, so it also affects your Mac and would add to this correction. TuningMac's EQ only changes sound from your Mac, so it won't affect your phone.
Tune your Fit Open Earbuds S50 on your Mac
Parametric and 10-band EQ, noise control and battery in the menu bar.
EQ data from AutoEQ by Jaakko Pasanen (MIT licence), measurement by HypetheSonics. Specifications from 1MORE's published specifications. 1MORE Fit Open Earbuds S50 is a trademark of 1MORE; TuningMac is not affiliated with 1MORE.