Audio-Technica M-Series ATH-M40x
form factor over-ear
driver type dynamic
driver size mm 40
impedance ohms 35
open closed back closed
32 Overall Score
Price $654
Snapshot
Pros & Cons
Pros
- Strong build (76th percentile) 76th
- Strong sound (70th percentile) 70th
Cons
- Below average mic (15th percentile)
- Below average user sentiment (19th percentile)
- Below average anc (30th percentile)
- Below average connectivity (35th percentile)
What owners think
How owner sentiment changed over time
ExclusiveBased on when customers actually wrote their reviews — so you can see whether early praise held up.
Owner sentiment has cooled since launch
72/100Our AI sentiment read
Based on 50 dated customer reviews, grouped by calendar quarter. Period analysis is in English.
The proof
Performance
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | closed |
| Foldable | Yes |
| Weight | 0.2 kg / 0.5 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 40 |
| Freq Min | 15 |
| Freq Max | 24000 |
| Impedance | 35 |
| Sensitivity | 98 |
| Codecs | Audio-Technica 6 Pack ATH-M40x Professional Monitor Headphones, 98dB, 15-24kHz, with 9.8' Coiled and Straight Interchangeable Cables - Microfiber Cloth |
Connectivity
| Wired Connector | 3.5mm |
| Detachable Cable | Yes |
| Cable Length | 3 |
vs Competition
| Spec | Audio-Technica M-Series ATH-M40x | Bowers & Wilkins Px8 S2 Px8 S2 | Sony WH-1000XM6 WH-1000XM6 | Sennheiser Momentum MOMENTUM 4 | JBL Live 770NC | Bose QuietComfort Ultra 2nd Gen |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | dynamic | dynamic | dynamic | dynamic | Dynamic | Dynamic |
| Driver Size (mm) | 40 | 40 | 30 | 42 | 40 | - |
| Impedance Ohms | 35 | - | 48 | 470 | 32 | - |
| Wireless | - | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.3 | 5.3 | 5.2 | 5.3 | 5.4 |
| Battery Life Hours | - | 30 | 30 | 60 | 65 | 30 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| Audio-Technica M-Series ATH-M40x | 30.1 | 15 | 76.4 | 70.4 | 42.9 | 50 | 19.4 | 34.9 | 45.3 |
| Bowers & Wilkins Px8 S2 Px8 S2 Compare | 97.5 | 99.3 | 95.8 | 99.4 | 71.4 | 50 | 87.1 | 97.4 | 97.4 |
| Sony WH-1000XM6 WH-1000XM6 Compare | 97.5 | 90.7 | 92.1 | 89.7 | 71.4 | 78.9 | 0 | 99.7 | 83.1 |
| Sennheiser Momentum MOMENTUM 4 Compare | 97.5 | 84.3 | 76.4 | 94.8 | 88.9 | 78.9 | 69.9 | 99.2 | 55.6 |
| JBL Live 770NC Compare | 97.5 | 77.6 | 97.2 | 84.4 | 91.4 | 50 | 69.9 | 99.9 | 91.4 |
| Bose QuietComfort Ultra 2nd Gen Compare | 92.1 | 77.6 | 92.1 | 42 | 71.4 | 50 | 87.1 | 99.9 | 83.1 |
Price
Value & Pricing
From $654
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May 22, 2026 $654
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
