Audio-Technica ATH-M40x

Flat-response studio closed-back that detachable cables actually make practical

Best for: Podcasters and home studio producers who need accurate closed-back monitoring for tracking and playback

The ATH-M40x is a closed-back, over-ear studio monitor headphone built around 40mm neodymium drivers tuned for a flat, analytical frequency response across 15 Hz to 24 kHz. At 35 ohms impedance, it drives easily from any audio interface or laptop headphone jack. Two detachable cables - one coiled, one straight - are included, and 90-degree swiveling earcups allow single-ear monitoring.

Key features

Closed-back, over-ear design
40mm neodymium dynamic drivers
15 Hz - 24 kHz frequency response
35 ohm impedance - no amp needed
Two detachable cables: coiled and straight
90-degree swiveling earcups

Our take

The M40x sits in a sweet spot where the price is low enough for beginners and the sonic accuracy is high enough that professionals actually use it for tracking. The flat tuning is genuinely flatter than the more popular M50x, which means it will tell you the truth about your audio rather than flatter it with hyped lows. The detachable cable system is a practical win - the stock M50x cord has broken on countless creators, and the M40x solved it properly. If there's a knock, the earcup padding is a step below premium - long sessions get warm. But for monitoring in a recording environment, nothing at this price reliably beats it.