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1 / 7Open-backs with some bass? What's the catch?
A 3.7 puts its audio quality in the bottom quarter of over-ear headphones we've measured.
Measured on 44 of the 240 we've cataloged.
Wired-3.5mm is the most common — on 48% of the 215 over-ear headphones we've cataloged (of 240).
above average for over-ear headphones — based on 195 of 240 we've cataloged.
The Meze Audio 109 Pro are well made and offer something a little less clinical for at-home listening. The tuning highlights treble frequencies, but with more bass that most open-backs. These unique open-back headphones allow you to repair and replace parts on as they age, which helps justify the price tag.
Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | -2.3 |
| 25 | -0.3 |
| 32 | 1.1 |
| 40 | 2.2 |
| 50 | 1.9 |
| 63 | 2.7 |
| 80 | 3.3 |
| 100 | 3.0 |
| 125 | 2.3 |
| 160 | 1.4 |
| 200 | 0.8 |
| 250 | 0.4 |
| 315 | -0.1 |
| 400 | -0.6 |
| 500 | -0.3 |
| 630 | 0.2 |
| 800 | 0.5 |
| 1000 | -0.0 |
| 1250 | -0.9 |
| 1600 | -1.4 |
| 2000 | 1.1 |
| 2500 | 7.2 |
| 3150 | 9.2 |
| 4000 | 11.7 |
| 5000 | 6.0 |
| 6300 | 9.3 |
| 8000 | 10.8 |
| 10000 | 2.4 |
| 12500 | 4.6 |
| 16000 | -4.3 |
| 20000 | -13.7 |
Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.
| Frequency (Hz) | Attenuation (dB) |
|---|---|
| 21 | -0.1 |
| 26 | -4.2 |
| 33 | -0.3 |
| 41 | 0.2 |
| 52 | -0.6 |
| 65 | -0.4 |
| 82 | -0.6 |
| 103 | -0.5 |
| 130 | -0.1 |
| 163 | -0.4 |
| 205 | -0.3 |
| 259 | -0.6 |
| 325 | 0.3 |
| 410 | -0.3 |
| 516 | -0.4 |
| 613 | -0.5 |
| 772 | 0.0 |
| 972 | 0.9 |
| 1220 | 4.0 |
| 1540 | 9.4 |
| 1940 | 9.5 |
| 2440 | 6.7 |
| 3070 | 5.0 |
| 3870 | 12.5 |
| 4870 | 14.4 |
| 6130 | 21.3 |
| 7720 | 13.2 |
| 9720 | 11.2 |
| 12200 | 21.7 |
| 15400 | 18.0 |
| 19400 | 16.6 |
Multi-Dimensional Audio Quality Scores (1–5), modeled from the measured response. Higher is better across timbre, distortion, and immersiveness — add other models to see where this one lands.
Commentary and deep dives from the SoundGuys editorial team.











