
JBL Live 670NC
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The battery beat their expectations
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1 / 7Lightweight and fun, but a little too simple
A 7.3 puts its overall rating in the top third of on-ear headphones we've measured.
Measured on 15 of the 62 we've cataloged.
A 6.2 puts its value for money in the bottom quarter of on-ear headphones we've measured.
Measured on 15 of the 62 we've cataloged.
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above average for on-ear headphones — based on 41 of 62 we've cataloged.
below average for on-ear headphones — based on 34 of 62 we've cataloged.
above average for on-ear headphones — based on 50 of 62 we've cataloged.
Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.
Marshall Major IV Frequency Response (measured on a B&K 5128)
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Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.
| Frequency (Hz) | Response (dB) |
|---|---|
| 20 | 1.6 |
| 25 | 3.7 |
| 32 | 5.0 |
| 40 | 5.5 |
| 50 | 6.3 |
| 63 | 6.0 |
| 80 | 5.5 |
| 100 | 2.7 |
| 125 | 1.5 |
| 160 | 0.4 |
| 200 | -0.7 |
| 250 | -3.1 |
| 315 | -6.6 |
| 400 | -8.7 |
| 500 | -7.8 |
| 630 | -5.5 |
| 800 | -3.5 |
| 1000 | -1.0 |
| 1250 | 0.1 |
| 1600 | 1.5 |
| 2000 | 4.4 |
| 2500 | 9.8 |
| 3150 | 14.5 |
| 4000 | 14.5 |
| 5000 | 10.4 |
| 6300 | 10.2 |
| 8000 | 10.5 |
| 10000 | 6.4 |
| 12500 | -4.8 |
| 16000 | -4.5 |
| 20000 | -18.0 |
Marshall Major IV Attenuation (measured on a B&K 5128)
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Solid lines: 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 | -3.0 |
| 26 | -1.0 |
| 33 | -0.6 |
| 41 | -0.4 |
| 52 | -0.5 |
| 65 | -0.6 |
| 82 | -0.8 |
| 103 | -0.9 |
| 130 | 0.2 |
| 163 | -0.2 |
| 205 | -0.6 |
| 259 | 1.6 |
| 325 | 3.3 |
| 410 | 3.3 |
| 516 | 2.4 |
| 613 | 3.7 |
| 772 | 4.1 |
| 972 | 6.6 |
| 1220 | 7.1 |
| 1540 | 8.5 |
| 1940 | 9.6 |
| 2440 | 15.4 |
| 3070 | 21.9 |
| 3870 | 26.7 |
| 4870 | 34.0 |
| 6130 | 35.4 |
| 7720 | 31.8 |
| 9720 | 29.9 |
| 12200 | 17.1 |
| 15400 | 20.4 |
| 19400 | 19.3 |
The verdict
The Marshall Major IV is a rare example of decent comfort from a set of on-ear headphones. It's lightweight, portable, and has a long playback time. The brass colored button is fun to use too. While it does not isolate noise particularly well, and the sound is rather hyped, it's silly simple to use. Offering wired listening can offset the lone SBC codec somewhat.
✓Liked: Lightweight, Battery life, Wireless charging, Wired or Bluetooth connectivity
✕Could be better: SBC Bluetooth codec only, Too much treble and bass, On-ears do not isolate very well
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0 of 1 would buy again
1 owner
The battery beat their expectations






