Audio-Technica ATH-M20x
Entry-level closed-back monitors with neutral-leaning mids, audible low-bass roll-off, and weak passive isolation; excellent value around 59 USD for basic tracking in quiet rooms.
Overview
The Audio-Technica ATH-M20x is the entry model of the M-Series: closed-back, over-ear, 40 mm dynamic drivers (neodymium, CCAW), fixed 3.0 m cable. Official specs list 47 Ω impedance, 96 dB sensitivity, and ~190 g weight (w/o cable). It targets budget buyers needing straightforward tracking cans.
Scientific Validity
\[\Large \text{0.3}\]Independent measurements broadly agree on a neutral-leaning midrange with audible roll-off below ~70–100 Hz and treble irregularities around ~5–10 kHz. Weighted total harmonic distortion is ~0.18% at 90–100 dB SPL (generally inaudible). Passive isolation is weak overall—about ~12 dB average, with little attenuation in bass and stronger attenuation in upper treble (≈ 25–35 dB near 8 kHz). These traits suit tracking/editing in quiet rooms but are sub-optimal for bass-critical work or loud environments.
Technology Level
\[\Large \text{0.2}\]Conventional 40 mm dynamic drivers in a basic closed-back shell. No detachable cable, no active circuitry, and no novel acoustic tech. Practical and simple rather than innovative.
Cost-Performance
\[\Large \text{1.0}\]Typical street price is 59 USD (US) / ¥7,700 (JP). Among equal-or-better closed-back studio options widely available at retail, AKG K92 is a credible reference point at 79 USD (US) and ¥8,580 (JP). With comparable use-case and no cheaper validated alternative at this performance level, the ATH-M20x maximizes cost-performance.
Reliability & Support
\[\Large \text{0.3}\]Lightweight plastics and a fixed long cable are the main wear points, but the design is simple and passive. Audio-Technica’s global support network covers basic parts and service.
Rationality of Design Philosophy
\[\Large \text{0.2}\]The product prioritizes affordability and a safe tuning for general tracking. Trade-offs are limited isolation and sub-bass extension, which constrain use in noisy spaces or detail-critical bass work.
Advice
If you require strong isolation or a detachable cable, step up within the M-Series or rival studio lines. If you work in quiet rooms and value price over features, the ATH-M20x is a sensible buy around 59 USD.
References
- RTINGS — “Audio-Technica ATH-M20x Review” (FR/THD/isolation data). https://www.rtings.com/headphones/reviews/audio-technica/ath-m20x
- SoundGuys — “Audio-Technica ATH-M20x review” (FR/isolation commentary). https://www.soundguys.com/audio-technica-ath-m20x-review-63732/
- Audio-Technica — M-Series leaflet / spec (47 Ω, ~190 g, 3 m cable). https://docs.audio-technica.com/eu/M-Series_leaflet_ENG_L00053_V1.0.pdf
- B&H — ATH-M20x price (US). https://www.bhphotovideo.com/c/product/1024219-REG/audio_technica_ath_m20x_closed_back_professional_studio.html
- B&H — AKG K92 price (US). https://www.bhphotovideo.com/c/product/1221517-REG/akg_3169h00030_k92_closed_back_studio_headphones.html
- SOUNDHOUSE — AKG K92 price (JP). https://www.soundhouse.co.jp/products/detail/item/212137/
(2025.8.14)