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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-27 · 7 min read · Independent comparison
• AKG Pro Audio 2458X00190 — biggest strength: a fully open, over-ear reference design with a Varimotion two-layer diaphragm and flat-wire voice coil, tuned for spacious, accurate, transient-rich sound. Biggest trade-off: open-back means almost no isolation, so it's a quiet-room tool, not a commute or tracking headphone.
• Audio-Technica ATH-M50x — biggest strength: a closed-back, over-ear monitor with 45 mm large-aperture drivers, 90° swiveling earcups and a foldable body, plus three detachable cables and a hard case in this kit. Biggest trade-off: the closed design trades some of that airy openness for isolation and punch, and the kit is bulkier to carry than a bare pair of cans.
• Pick the AKG if you mix or master in a treated room and want to hear space, detail and stereo depth.
• Pick the ATH-M50x if you track, DJ, podcast, or move between rooms and need isolation plus a cable for every situation.
The AKG 2458X00190 is the K702, and the spec sheet tells you exactly what kind of headphone it is. It's over-ear and open-back, with a rated impedance of 62 ohms, 105 dB SPL/V sensitivity, a 10 Hz to 39,800 Hz frequency bandwidth and a maximum input power of 200 mW. Those numbers describe a headphone that wants a decent amp behind it and rewards one with reach at both ends of the spectrum. The open enclosure is the whole point: it lets air move freely, which is what gives this model its spacious, airy presentation instead of the pressurized feeling you get from a sealed cup.
The engineering story here is the Varimotion two-layer diaphragm — a diaphragm whose thickness varies across its diameter, which lets AKG tune the capsule for accurate, feedback-free output — paired with a flat-wire voice coil for higher sensitivity and a faster impulse and treble response. In practice, that's a recipe for hearing reverb tails, pan positions and small level moves that closed headphones tend to smear. The 3 m detachable cable with a mini XLR connector means you can swap the cable without retiring the headphone, the 3D-foam ear pads and leather headband are built for long sessions, and the pads are replaceable. Each unit is individually checked and serial-numbered, which is a nice signal of the reference-grade positioning.
Buy it if you mix, master or do precision listening in a quiet space and you care more about depth and accuracy than bass thump or isolation. Skip it if you record vocals or drums in the same room, work in a noisy environment, or want to wear headphones on a train — an open back leaks sound both ways, and no amount of tuning fixes that. Also note the connectivity spec lists both a wired 3.5 mm jack and Bluetooth, so check the exact configuration you're buying if wireless matters to you.
The ATH-M50x is the other archetype entirely. It's an over-ear, closed-back monitor built around 45 mm large-aperture dynamic drivers with rare-earth magnets and copper-clad aluminum wire voice coils, with a frequency range of 15 Hz to 28,000 Hz. Audio-Technica tunes this line for clarity plus a deep, accurate bass response, and the sealed cups mean the outside world gets pushed back — which is why this shape of headphone ends up in tracking rooms, DJ booths and podcast setups rather than mastering suites.
The physical design is where it earns its keep. The earcups swivel 90°, the headphone folds, and the kit ships with three detachable single-sided cables — a coiled cable that stretches from roughly 3.9 to 9.8 feet, a straight 9.8-foot cable and a shorter 3.9-foot straight cable — plus a 1/4-inch screw-on adapter, a carrying pouch and a full-size hard body case. That's a genuinely practical bundle: long cable for the desk, short cable for a phone or laptop, coiled cable when you're moving around, and a case that survives a bag. The 6.35 mm jack on the spec sheet reflects the pro-audio orientation, and the inline remote and earcup controls give you volume and playback handling without reaching for your source.
Buy it if you need one headphone that does tracking, casual mixing, DJing, podcasting and everyday listening, and you value isolation and portability. Skip it if your priority is the widest possible soundstage and uncolored open-back presentation for mastering — the closed design and bass-forward tuning are the opposite philosophy, and the swivel/fold hardware plus the case make it a bulkier thing to own than a simple open reference pair.
Side-by-Side: Which Should You Choose?
• Best for mixing and mastering accuracy → AKG Pro Audio 2458X00190. Open-back, flat-wire voice coil, Varimotion diaphragm, 10 Hz–39,800 Hz.
• Best for tracking, DJing and podcasting → Audio-Technica ATH-M50x. Closed-back isolation plus 90° swiveling cups for one-ear monitoring.
• Best for cable flexibility → Audio-Technica ATH-M50x. Three detachable cables (coiled plus two straight) and a 1/4-inch adapter in the box.
• Best for cable serviceability on a reference pair → AKG Pro Audio 2458X00190. Mini XLR detachable cable and replaceable ear pads.
• Best for long-session comfort in a fixed listening position → AKG Pro Audio 2458X00190. 3D-foam ear pads and a leather headband designed for extended work.
• Best for a single do-everything headphone → Audio-Technica ATH-M50x. It covers studio work, commuting and casual listening; the AKG is a specialist.
• Best for amplifier-friendly reference listening → AKG Pro Audio 2458X00190. 62 ohms and 105 dB SPL/V, with 200 mW maximum input power.
If I had to pick one for a home studio where the room is reasonably quiet and the job is mixing, editing and really hearing what's in a track, I'd buy the AKG Pro Audio 2458X00190. The open-back design, Varimotion diaphragm and flat-wire coil are exactly the combination I want for depth and detail, and the detachable mini XLR cable and replaceable pads make it a long-term keeper. But I'd only recommend it with that quiet-room caveat attached. If your work involves a microphone in the same room, a noisy space, or gear that leaves the desk, the ATH-M50x is the smarter single purchase — the isolation, swiveling cups, three cables and hard case make it the more versatile tool. In my opinion, buy the AKG for listening, buy the M50x for working anywhere.
how to connect studio headphones
Both of these are wired designs, so connection is a cable question. The ATH-M50x uses a 6.35 mm jack with a screw-on 1/4-inch adapter and three detachable single-sided cables, so it plugs straight into an interface or mixer. The AKG 2458X00190 uses a detachable mini XLR cable terminating in a 3.5 mm jack, so you may need a 3.5 mm-to-1/4-inch adapter for pro gear. Its spec sheet also lists Bluetooth, so confirm which version you're buying if you want wireless.
how to test studio headphones
Start with material you know intimately and listen for things the specs predict: the open-back AKG should show wider space and reverb tails, while the closed ATH-M50x should show tighter isolation and stronger low-end. Check channel balance, listen for distortion at the volume you actually work at, and verify the cable and connectors on both sides. With the ATH-M50x, also test the 90° swivel and the fold, since those are moving parts.
how to bluetooth studio headphones
Neither of these is primarily a Bluetooth headphone — the ATH-M50x is a wired, 6.35 mm monitor, and the AKG is wired with a 3.5 mm jack even though Bluetooth appears in its connectivity listing. The practical route for either is a Bluetooth receiver or transmitter adapter that feeds their analog input, or a DAC/amp with wireless input. If wireless is your main use case, treat these as wired headphones first.
how to pair beats studio headphones
That's a different brand's procedure, so I won't guess at it here. For this comparison, the relevant point is that pairing steps vary by model and firmware. If you're deciding between the AKG and the ATH-M50x, base the call on isolation, cable setup and open versus closed design rather than on wireless pairing.
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