How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want maximum passive isolation with a full-size over-ear fit that never needs charging, choose Direct Sound EX29; if you need a tunable, Hi-Res-certified in-ear monitor with a detachable cable and a 10Hz–45kHz range, choose Hidizs MK12.
• Direct Sound EX29 biggest strength: 29 dB of passive sound isolation, a closed-back dynamic design, and a fully adjustable folding headband — studio-grade noise blocking with zero batteries.
• Direct Sound EX29 biggest trade-off: It's a wired, fixed-cable over-ear with a single tuning, so you can't swap cables or reshape the sound.
• Hidizs MK12 biggest strength: A 12mm 91% pure magnesium driver with a 1.5T magnet, 10Hz–45kHz Hi-Res-certified range, and a modular nozzle/tip system that creates up to nine sound signatures.
• Hidizs MK12 biggest trade-off: It's an in-ear design, so its isolation depends on tip fit rather than a sealed over-ear cup, and the tuning options take some experimentation.
• Who EX29 is for: drummers, DJs, tracking engineers, and anyone who needs to block outside noise passively.
• Who MK12 is for: listeners who want a portable, tunable, detail-forward IEM for commuting, mixing on the move, or critical listening.
The Direct Sound EX29 is built around one idea: keep the outside world out. Its headline number is 29 dB of passive isolation, achieved with closed-back dynamic drivers and no batteries, no active processing, nothing to charge. That matters in a tracking room, a live pit, or a noisy rehearsal space where you need to hear the click track and your instrument — not the room.
What it does best is combine that isolation with a genuinely practical studio fit. The IncrediFlex padded headband is fully adjustable, and the whole thing folds for storage, which is exactly what you want if this lives in a gig bag. The cable is a straight stereo 1/8" (3.5 mm) gold-plated connection with a screw-on 1/4" (6.3 mm) gold-plated adapter, so it goes straight into a laptop, interface, or mixer without a dongle. Frequency range is a standard 20 Hz–20,000 Hz, with a stated 29 dB sensitivity figure and over-ear placement. Weight is 1.1 pounds, which is substantial — this is a headphone you notice on your head, and for long sessions that's the real cost of the design.
Who should buy it: drummers, DJs, live performers, and engineers who need reliable passive isolation from a wired, no-fuss over-ear. Who should skip it: anyone who wants a pocketable IEM, cable swapping, or the ability to tune the sound signature. The EX29 gives you one voicing, done its way. In my opinion, that's a feature, not a flaw — it's a tool, not a toy.
The Hidizs MK12 Turris is the opposite philosophy: maximum flexibility in a tiny package. Its 12mm dynamic driver uses a 91% pure magnesium M-dome diaphragm with external magnets rated at 1.5 Tesla flux density. Hidizs states 111 dB sensitivity, 32 ohm impedance, and a 10Hz–45kHz range that's Hi-Res certified, with 0.8% THD. Read the numbers plainly: very high sensitivity means it's easy to drive from a phone or dongle, and the wide range suggests it will render sub-bass and treble extension that most single-tuning headphones simply don't reach.
The real story is the modular acoustic system. Three tuning nozzles — silver for highs, rose gold for natural vocals, red for bass — pair with nine triple-sealed silicone tips in Vocal, Balanced, and Bass profiles. That's up to nine distinct signatures from one pair of IEMs. If you listen across genres, this is genuinely useful: bright nozzle and vocal tips for acoustic and classical, red nozzle and bass tips for rock and electronic. The cable is silver-plated oxygen-free copper, twisted pair, and it's detachable — a real advantage over the EX29's fixed cable, since a worn cable is a cheap fix rather than a dead pair of monitors. The 4.4 mm balanced jack is worth flagging: you'll want a source or dongle with a 4.4 mm output to use it as intended.
Who should buy it: commuters, office listeners, and anyone who wants to tune their sound and swap cables. Who should skip it: people who hate fiddling with tips and nozzles, or who need sealed over-ear isolation for loud stages. At 251.5 g for the package, it's a pocketable kit, not a studio can.
Side-by-Side: Which Should You Choose?
• Best for passive noise isolation → Direct Sound EX29. 29 dB of passive isolation is its entire reason for existing.
• Best for portability → Hidizs MK12. In-ear, detachable cable, pouch included.
• Best for stage and studio tracking → Direct Sound EX29. Closed-back, folding, wired, no batteries, screw-on 1/4" adapter.
• Best for long-session comfort → Hidizs MK12. In-ear silicone tips versus a 1.1-pound over-ear.
• Best for cable longevity → Hidizs MK12. Detachable OFC cable versus the EX29's fixed cable.
• Best for plug-and-play simplicity → Direct Sound EX29. One voicing, one cable, no setup.
• Best for frequency extension → Hidizs MK12. 10Hz–45kHz Hi-Res range versus the EX29's 20Hz–20kHz.
If I had to pick one for myself, I'd buy the Hidizs MK12. The tuning nozzles, the swappable cable, and the 10Hz–45kHz magnesium driver give me far more ways to make it sound right for whatever I'm listening to, and it travels in a pocket. But I'd recommend the Direct Sound EX29 without hesitation to anyone whose job depends on blocking noise — a drummer, a live player, an engineer tracking in a loud room. Isolation is the one thing the MK12 can't match. Check the current price on Amazon for both before you decide.
For drumming specifically, yes, in my opinion. The EX29's 29 dB of passive isolation and closed-back over-ear cups are designed to block stage and room noise, which is exactly what a drummer needs to hear a click and their own kit.
Does the Hidizs MK12 need a special adapter for its 4.4 mm jack?
The MK12 reaches down to 10Hz on paper, well below the EX29's 20Hz floor, and its red tuning nozzle and bass tips are made for low-end emphasis. The EX29 is tuned as a neutral studio tool rather than a bass-forward listen.
Yes on the Hidizs MK12 — its silver-plated oxygen-free copper cable is detachable. No on the Direct Sound EX29, which uses a fixed straight stereo cable with a screw-on 1/4" adapter.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.