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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to restore or upgrade the cable on a pair of Audio-Technica studio headphones so you can keep mixing, tracking and cueing on real DJ and studio gear, choose Zosvoses ATH-M40X; if you need a compact, screen-equipped voice changer and sound card kit with its own headphones and adapters for streaming, gaming and karaoke, choose DIANMO A9.
• Zosvoses ATH-M40X — biggest strength: a purpose-built 2 m replacement cable for Audio-Technica ATH-M40X / M50X / M60X / M70X, with oxygen-free copper conductors, twisted-pair shielding against EMI/RFI, gold-plated connectors and a 6.35 mm adapter for mixers, amps and DJ consoles.
• Zosvoses ATH-M40X — biggest trade-off: it is not a headphone and not an audio source. It only makes sense if you already own one of those four Audio-Technica models and need a longer, better-shielded lead.
• DIANMO A9 — biggest strength: an all-in-one kit — voice changer, sound card, clip-on screen unit and headphones — with 7 voice modes, 3 vocal modes and plug-and-play support for phones, PCs, PS4/PS5 and Xbox One.
• DIANMO A9 — biggest trade-off: it is an effects and streaming accessory, not a neutral monitoring tool. Nothing in its spec sheet targets flat, reference-grade playback for mixing.
• Who each pick is for: Zosvoses ATH-M40X for the DJ or studio user fixing a worn cable on Audio-Technica cans; DIANMO A9 for the streamer, gamer or karaoke host who wants voice effects out of one small box.
This is a cable, and I want to be blunt about that before anything else. The Zosvoses ATH-M40X is a 2 m (78.74 in) replacement lead built for the Audio-Technica ATH-M40X, ATH-M50X, ATH-M60X and ATH-M70X. It terminates in a 2.5 mm connector on the headphone side and a 3.5 mm plug on the source side, and it ships with a 6.35 mm adapter. That combination is exactly what DJ and studio work asks for: the small end locks into the headphone cup, the 3.5 mm end goes into a phone, laptop, tablet, portable DAC or controller, and the adapter screws onto a mixer, power amplifier or DJ console.
What it does best is solve two problems at once — length and noise. Two metres is generous compared with the short coiled leads many people run on portable gear, so you can stand at a turntable or walk a small studio floor without tugging the cups off your head. Internally it uses high-purity oxygen-free copper with a twisted-pair structure, which the spec sheet says suppresses electromagnetic and radio-frequency interference from nearby electronics. In a booth full of screens, LED lighting and power supplies, that matters. The plugs also carry strain-relief rings at the plug, jack and adapter, and the PVC jacket is described as abrasion-resistant and rated past 10,000 bend tests — the kind of wear point that kills cheap cables first.
Buy it if you own one of those four Audio-Technica models and your original cable has gone crackly, too short or too stiff. Skip it if you own a different headphone brand, if you need a cable with an inline mic or remote, or if you were hoping for a complete listening solution — this is one component, not a product that makes sound on its own. Check the current price on Amazon before you commit, since a cable purchase is only worth it against the alternative of replacing the whole headphone.
The DIANMO A9 is a different animal entirely. It is a palm-sized kit — 1.97 in x 1.97 in, 39 g — with a clip-on body, a small colour screen showing real-time status, and a bundle of accessories: charging cable, audio cable, headphones, plus Type-C and Lightning adapters. The pitch is simple. You clip it to a collar or pocket, plug it into a device, and you get voice effects and vocal processing without installing drivers.
The feature list is where it earns its place. Seven voice-changing modes cover robot, male-to-female, female-to-male, youth, queen, lolita and childlike voices, and each one has ten levels of fine-tuning — enough range to dial in a character voice for role-play rather than settling for one fixed preset. On top of that sit three sound modes: KTV, recording studio and electric sound, which shape reverb and dynamics for live streaming, dubbing or online karaoke. Compatibility is broad: Android over Type-C, Apple over Lightning, computers, PS4, PS5 and Xbox One, with 3.5 mm and OTG plug-and-play.
Buy it if you stream, game, dub short videos or host karaoke nights and want voice effects and vocal polish in one portable box with everything included. Skip it if your goal is critical listening. There is nothing in the spec sheet about frequency response, impedance or isolation, and a kit built around voice transformation is not the tool for judging a mix. Also skip it if you already own a dedicated audio interface and only wanted effects software.
• Best for replacing a worn Audio-Technica cable → Zosvoses ATH-M40X. It is built specifically for the M40X, M50X, M60X and M70X.
• Best for connecting to DJ consoles, mixers and power amplifiers → Zosvoses ATH-M40X. The bundled 6.35 mm adapter covers professional audio gear directly.
• Best for noise-free signal in a crowded booth → Zosvoses ATH-M40X. Oxygen-free copper plus twisted-pair EMI/RFI suppression targets exactly that problem.
• Best for voice effects and character work → DIANMO A9. Seven modes with ten tuning steps each is far more range than a cable can offer.
• Best for live streaming, karaoke and dubbing → DIANMO A9. The KTV, recording studio and electric sound modes are designed for vocal content.
• Best for plug-and-play across phone, PC and console → DIANMO A9. Type-C, Lightning, 3.5 mm and OTG support with adapters in the box.
• Best for a grab-and-go setup → DIANMO A9. At 39 g with a clip-on design and a built-in screen, it lives on your collar.
• Best for a long, tangle-resistant run → Zosvoses ATH-M40X. Two metres of flexible PVC that folds down for a pocket or bag.
If I had to pick one, I would buy the Zosvoses ATH-M40X — but only because of who I am as a buyer. In my opinion, it is the more honest purchase for anyone doing DJ or studio work, because it fixes a real failure point on headphones people already trust, and the 6.35 mm adapter means it plugs straight into the gear that matters in a booth. The DIANMO A9 is genuinely good at what it does, and if your content is voice-led rather than mix-led, it is the more fun and more complete kit. Two different jobs, two different answers.
FAQ
can you dj with studio headphones
do you need headphones to dj
In practice, yes. Cueing the incoming track while the room hears the outgoing one is the core of mixing, and that requires a separate listening path. The DIANMO A9 kit even includes headphones and an audio cable, so it can serve voice and monitoring duties for streaming or gaming setups, though it is not aimed at beatmatching.
why do djs need headphones
Because the crowd only hears the master output, while the DJ needs to hear the next track privately, in time, before anyone else does. That means clear, low-noise reproduction of the cue signal. The Zosvoses ATH-M40X cable's oxygen-free copper core and twisted-pair shielding are designed to keep that cue signal clean even beside screens, lights and power supplies.
what is the difference between these two products
One is a single-purpose 2 m replacement audio cable for Audio-Technica ATH-M40X, M50X, M60X and M70X headphones. The other is a portable voice changer and sound card kit with a colour screen, headphones and adapters for phones, PCs and consoles. They barely overlap — pick based on whether you need a cable or a creative audio tool.
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