Based on our overall comparison score, Marshall Monitor III ANC rates higher at 84/100 versus 26/100 for Audio-Technica ATH-M40x — a 58-point lead. Marshall Monitor III ANC is the stronger overall pick, though the right choice still depends on which specs matter most to you; the full spec table above breaks down every difference.
Marshall Monitor III ANC vs Audio-Technica ATH-M40x
Updated Jul 2026 · Scored by the Let’s Compare Data Engine · How we score
For most buyers the Marshall Monitor III ANC is the better pick — it scores 89/100 to the Audio-Technica ATH-M40x's 19, leading on Noise Cancelling and Wireless. Choose the Audio-Technica ATH-M40x instead if comfort & build matters most to you, where it comes out ahead.
- Sound quality isn't scored yet (we have no measured audio data), so the score covers features, battery, noise cancelling and build.
Verdict
Our overall take, at a glance
Key takeaways
- Marshall Monitor III ANC leads Audio-Technica ATH-M40x overall by 70 points (89 vs 19 out of 100).
Marshall Monitor III ANC leads overall
Marshall Monitor III ANC
89
Audio-Technica ATH-M40x
19
Watch-outs
Compromises to know before you buy
Marshall Monitor III ANC
No notable compromises found.
Audio-Technica ATH-M40x
- No microphone — you can't take calls.
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jul 2026.
Marshall Monitor III ANC
The Marshall Monitor III ANC is a pair of premium over-ear wireless headphones designed for music enthusiasts who value classic styling alongside modern noise-canceling technology. It features active noise cancellation, a highly collapsible design for portability, and a signature rugged aesthetic. This model aims to compete with major flagship headphones by balancing tactile physical controls with extended battery performance.
Best for Travelers needing maximum battery longevity between chargesBest for Listeners who prefer physical, tactile controls over touch-sensitive panels
Pros
- Exceptionally long battery life ideal for multi-day use
- Highly collapsible design makes them easy to pack and transport
- Tactile multi-directional control knob offers intuitive playback adjustments
- Durable, classic design inspired by iconic amplifier styling
Cons
- Active noise cancellation performance may not entirely match the industry-leading isolation of key competitors
Audio-Technica ATH-M40x
The Audio-Technica ATH-M40x is an over-ear, dynamic closed-back headphone designed primarily for studio monitoring and audio production. Introduced as part of a remastered M-Series lineup in 2014, it features 40mm drivers with neodymium magnets and copper-clad aluminum voice coils. Operating with a 35-ohm impedance and a frequency response of 15 to 24,000 Hz, it is tuned to provide a flatter, more accurate sound profile with minimal coloration.
Best for audio mixing and studio monitoring requiring accurate, uncolored frequency…Best for content creation and tracking where a lightweight, closed-back design is…
Pros
- Equipped with two different detachable cables (a 1.2-meter straight and a 3-meter coiled cable) for physical flexibility
- Tuned for a relatively flat frequency response, helping to deliver accurate and uncolored audio reproduction
- Weighs 240 grams, presenting a relatively lightweight option for long listening sessions
- Includes a screw-on 6.5mm adapter to ensure compatibility with professional audio equipment
Cons
- Includes only a basic soft pouch for storage, offering limited physical protection compared to a hardshell case
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
Marshall Monitor III ANC
Audio-Technica ATH-M40x
Physical Comparison
Weigh them up, then compare real dimensions in 3D
Marshall Monitor III ANCAudio-Technica ATH-M40x
Marshall Monitor III ANC is 10 g (4%) heavier than Audio-Technica ATH-M40x.
Review Videos
Hand-picked expert reviews for each product
Detailed Specifications
The full spec sheet, side by side
Frequently Asked Questions
Common questions about Marshall Monitor III ANC vs Audio-Technica ATH-M40x comparison
Marshall Monitor III ANC and Audio-Technica ATH-M40x are compared side by side above across every spec in the headphones category — including performance, features and design — each scored 0–100 so you can see exactly where one leads the other. Our overall scores are 84/100 for Marshall Monitor III ANC and 26/100 for Audio-Technica ATH-M40x.
At launch, Audio-Technica ATH-M40x was the more affordable option ($99) versus Marshall Monitor III ANC ($350). Weigh that against the overall scores (84/100 vs 26/100) and the value-for-money meter above to judge whether the higher-rated model justifies its price for your needs. Current retail prices vary — check the retailer.
If you want the higher-rated headphones option overall, Marshall Monitor III ANC (84/100) edges out Audio-Technica ATH-M40x (26/100). But if Audio-Technica ATH-M40x is cheaper or stronger on the specific specs you care about, it can still be the better buy — use the spec table and strengths profile above to decide.
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