Tangzu - OX Demon King

Open-Back Headphone

Sale price₹ 41,999 Regular priceMRP: ₹ 49,999
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Packed and shipped within 24/48/72 hours

Your order leaves our warehouse within 24/48/72 hours - packed, handed to our courier, and on its way.

Orders placed before 2 PM on weekdays typically ship the same day.

This doesn't mean it arrives in 24/48/72 hours - delivery takes 3-4 working days depending on where you are.
Check the delivery date above for your estimate.

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Defective? Tell us within 7 days. We'll take care of it.

Something wrong with your product? We'll sort it out.

Wrong product, damaged, or missing parts: Let us know within 24 hours of delivery. If it's just an accessory, we'll replace the accessory.

What we'll need:

- Product in original packaging with all accessories

- Unboxing video and images of the parcel


This helps us see what went wrong and move faster.

Manufacturing defect: Let us know within 7 days of delivery. We'll replace or refund.

The process:
1. Raise a request - you'll get a RET number and hear from us by the next working day.
2. Once approved, we arrange pickup.
3. We inspect the product (2-3 working days).
4. Replacement shipped or store credit or refund issued.

A replacement or refund will be issued if:

- The product is found to be defective

- It wasn't damaged while in your possession-

- The same product is returned in original condition - box, MRP tag, manual, warranty card, all accessories



READ THE FULL REPLACEMENT POLICY
1 Year warranty included. You're covered.

This Tangzu - OX Demon King comes with a 1 Year manufacturer's warranty from Tangzu, covering manufacturing defects.

Every product on Headphone Zone is backed by an original manufacturer's warranty.

Need support? Start with us. We handle most brands' warranty claims directly, and for the rest, we'll help you connect with the brand.

Read about Tangzu's Warranty
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Why Tangzu is Special

🇨🇳

Designed in China

🥊 Young Maverick Brand

New on the scene, but bringing seasoned expertise 🌟!


We get excited about young maverick brands because they often bring fresh perspectives and cutting edge innovation that challenge established players. These companies combine youthful energy with serious technical expertise, often demonstrating remarkable attention to detail and commitment to pushing boundaries. Think of them like startup tech companies they might be newer, but they're hungry to prove themselves and often deliver incredible value.


Drawing on deep industry expertise and passion for audio excellence, these brands often demonstrate remarkable attention to detail and commitment to technological advancement. They frequently deliver cutting edge technology and performance that rivals established competitors 🚀.


When you see "🥊 Young Maverick Brand" products, expect innovative excellence from companies that combine fresh energy with serious technical expertise to deliver impressive results.

🦩

Boutique Brand

🐣

Born in 2021

Why we love this Headphone

💎 Premium Economy

Sensible spending meets sophisticated quality in perfect harmony 💫.


We tend to describe premium economy products as finding that sweet spot where exceptional value meets refined performance. Think of it like business class comfort at economy prices you're getting significantly more than what you paid for. These headphones deliver a refined listening experience that rivals more expensive alternatives, making them an intelligent choice for discerning listeners who appreciate both value and excellence.


This thoughtfully curated selection demonstrates our commitment to bringing you outstanding sound quality and robust construction without requiring a significant financial investment. Each product has been meticulously evaluated to ensure it delivers performance characteristics typically associated with higher price brackets.


When you see "💎 Premium Economy" products, expect refined audio experiences that bridge the gap between entry level and high end offerings, delivering impressive clarity and features at accessible price points.


🪴 For Budding Enthusiasts

In our experience, discovering good audio gear early on is a bit like tasting great coffee for the first time once you've had a sip, you're hooked. "For Budding Enthusiasts" is a badge we use for products that are perfect gateways into the audiophile world. They're easy to use, not overly expensive, and give you a real taste of what good sound can be without needing a degree in audio engineering. 🎧


These are the IEMs, headphones, and DACs that let you dip your toes into premium sound without drowning in choices. They balance performance, price, and practicality beautifully. Whether you're buying your first serious pair or helping someone else start their journey, these picks deliver satisfaction straight out of the box.


When you see '🪴 For Budding Enthusiasts' products, expect simple setups, solid sound quality, and an easy upgrade path perfect for your first foray into better audio.


🏠 For Audiophiles at Home

We’ve always loved the ritual of coming home, settling into my favourite chair, and firing up a dedicated setup. Gear labelled For Audiophiles at Home is made for those moments when you can really sit back and appreciate music in its purest form 🛋️. These products tend to be more powerful, larger, and often require wall power perfect for a stationary rig.


Here’s the trade off: these setups often involve external DACs, amps, or full size headphones, which means more space, more power, but also more immersive listening. They shine when used in quiet environments, where detail, depth, and dynamics can truly be appreciated.


When you see '🏠 For Audiophiles at Home' products, expect: exceptional fidelity, stronger output, and the kind of soundstage that makes you never want to leave your listening chair.

🔌 Upgradeable Cable

Not satisfied with the current cable? No problem 🔧!


We believe in giving you complete freedom to customise your listening experience. These IEMs feature detachable cable systems that let you swap, upgrade, or replace cables whenever you want. Think of it like having a modular smartphone you can upgrade individual components without replacing the whole device. Whether you're looking to improve sound quality, try different materials, or simply replace a worn cable, the choice is entirely yours.


The standardised upgradeable cable connection ensures compatibility with a wide range of aftermarket cables, giving you access to different sound characteristics and build qualities. This modular approach means your IEMs can evolve with your audio journey, allowing for easy maintenance and personalisation.


When you spot "🔌 Upgradeable Cable" products, expect future flexibility and the freedom to customise your audio experience through cable upgrades and replacements.

Why it Sounds Amazing

🔈 Planar Magnetic Driver

We love describing planar magnetic drivers as the Formula 1 cars of headphone tech. Unlike traditional dynamic drivers, planar magnetic drivers use an ultra thin diaphragm suspended between magnets that pushes air with unmatched speed and precision. The result? Sound that’s exceptionally clean, fast, and rich in detail across the entire frequency range. 🎧


Now here’s what’s actually happening: because of the evenly distributed magnetic force across the diaphragm, you get lower distortion, tighter bass, and a superior transient response. Planars often need more amplification and are typically found in larger headphones, but the payoff is a sound that’s smooth yet revealing incredibly accurate without being clinical. It’s the kind of driver that makes you rethink what your favorite track actually sounds like.

🧈 Warm & Smooth Sound Signature

We tend to describe warm and smooth as the audio equivalent of a hot cup of tea on a rainy day. Comforting, rich and very easy to love. Voices sound full, guitars sound rounded, and you look up four hours later wondering where the evening went. This is comfort listening, and there is no shame in that 🎶.


Here's what's actually happening. The bass and lower midrange are elevated to give the sound body and richness, while the treble is gently tamed so nothing ever turns sharp. That combination is wonderful for jazz, vocals, indie and old school rock, and it is genuinely forgiving of recordings that are a little rough. The trade off is precision. This is not the tuning for picking a mix apart, and detail hunters will find it soft.


When you see "🧈 Warm & Smooth Sound Signature" products, expect full bodied, relaxed sound made for long sessions rather than close analysis.

🥊 Punchy Mid-Bass

We’ve found that punchy mid-bass feels like standing right in front of a live drum kit where every beat lands with satisfying force. Think of it as the rhythmic engine of your music, delivering tight impact, warmth, and forward momentum that keeps tracks energetic and engaging 🥊. This tuning highlights the region where kick drums and bass guitars live, so songs carry a clear physical thump without sounding bloated. The result is music that feels lively and driven, with rhythm taking center stage.


Here’s what’s actually happening. Mid-bass emphasis strengthens the frequency range around 80 to 200Hz, where most rhythmic impact is concentrated 🎧. This produces faster attack, cleaner slam, and stronger beat definition, helping grooves feel precise and controlled. The trade off is that excessive boost can thicken the presentation if not tuned carefully. When engineered well, mid-bass delivers a focused punch and musical weight that energizes listening while preserving clarity.


When you see “🥊 Punchy Mid-Bass” products, expect strong rhythmic impact and tight, driving sound that makes every beat feel solid and addictive.

🌋 Explosive Sub-Bass

We’ve found that explosive sub-bass feels like standing near a massive cinema subwoofer where the air itself seems to move. Think of it like distant thunder rolling beneath your music, creating a physical foundation you feel as much as you hear 🌋. This tuning dives into the lowest depths of the frequency range, adding cinematic scale to movies and electronic tracks. Instead of simply hearing bass notes, listeners experience a tactile, visceral rumble that makes sound feel larger, deeper, and more immersive.


Here’s what’s actually happening. Sub-bass emphasis targets the deepest frequencies, often below 60Hz, where physical vibration lives 🎧. This creates greater extension, atmospheric weight, and room filling depth, giving sound a powerful sense of scale. This headphone or gear is engineered to reach the lowest depths of the frequency range, delivering a tactile and visceral experience. It focuses on that physical sensation of air moving, providing a foundation that feels as much as it sounds. When tuned well, the result is a clean, controlled low-end foundation that enhances impact without muddying the mix.


When you see “🌋 Explosive Sub-Bass” products, expect deep cinematic rumble and thunderous low-end power that brings movies and bass-heavy music to life.

✨ Bright & Sparkly Highs

Who says treble can't be done right ⭐?


We tend to describe these headphones as having "magical sparkle" in the high frequencies that makes cymbals shimmer and vocals shine without ever becoming harsh. These products excel in delivering pristine, crystalline high frequencies with remarkable precision and finesse. Think of it like the difference between cheap glitter and real diamonds both sparkle, but one does it with elegance and refinement that never hurts your eyes.


The treble presentation is masterfully tuned to showcase delicate nuances in the upper register, offering brilliant and engaging listening without fatigue. Every cymbal shimmer, violin overtone, and vocal harmony is reproduced with exceptional clarity and natural brilliance ✨.


When you see "✨ Bright & Sparkly Highs" products, expect extraordinary treble clarity that discovers new layers of detail while maintaining smooth, fatigue free listening.

📌 Sharp & Precise Details

Are you a lover of sharp and precise details 🔍?


We believe that detail retrieval is like having audio superpowers suddenly, you hear things in familiar songs that you never knew existed. These premium headphones are meticulously engineered to deliver remarkably detailed and precise sound reproduction, capturing every subtle nuance with exceptional accuracy. Think of them like high resolution cameras for your ears that reveal the finest textures and micro details that most headphones simply miss.


The carefully tuned drivers and advanced acoustic design ensure even the most delicate musical elements are reproduced with stunning precision. From the gentle brush of a cymbal to the subtle resonance of acoustic instruments, these products capture and present every sonic detail with remarkable accuracy 🎯.


When you see "📌 Sharp & Precise Details" products, expect extraordinary detail resolution that reveals new layers in familiar recordings with stunning clarity and precision.

🧨 Aggressive and Energetic

Ready for an audio adrenaline rush 🏃‍♂️?


We love describing these headphones as having "lightning in a bottle" energy that keeps you on the edge of your seat. These are specifically engineered to deliver powerful, high energy sound that makes every listening session feel like an adventure. Think of them like energy drinks for your ears they transform ordinary tracks into pulse pounding sonic experiences that keep you motivated and energised throughout your day.


The sound signature is carefully tuned to emphasise punch, impact, and musical drive, ensuring every beat hits with authority and excitement. These products excel at delivering intense, vibrant audio with exceptional dynamic contrast ⚡.


When you see "🧨 Aggressive and Energetic" products, expect high energy performance that transforms your music into consistently exciting and invigorating sonic adventures.

🎉 Like a Party in your Head

Now this one’s easy if a sound signature makes you want to dance, sing, or just lose yourself in the music, that’s what We call a party in your head. 💃 It’s the kind of sound that’s fun, energetic, and unapologetically lively. Think strong bass, glimmering treble, and a forward midrange that grabs your attention right away.


Technically, it’s usually a V shaped or bass boosted signature that’s not too concerned with neutrality but focuses on excitement and engagement. It’s perfect for Bollywood, EDM, pop, or anything upbeat. While it may not be the most accurate tuning, it’s the kind that gets your feet tapping and your head nodding within seconds. And honestly? Sometimes, that’s all you need.

Tangzu Introduces The OX Demon King – Its First Open-Back Planar Magnetic Headphone For Powerful, Precise Sound

The Bull Demon King is a legendary figure from Journey to the West, known for immense strength fused with commanding presence. Tangzu channels this spirit into the OX Demon King, the brand's first open-back planar magnetic headphone after years of expertise built through its in-ear monitor lineup. It features an 85mm planar magnetic driver housed in a five-axis CNC machined aluminium alloy frame, delivering a frequency response of 10Hz to 40,000Hz with low distortion and rapid transient response. Leather-wrapped ear pads and headband, combined with a replaceable 3.5mm cable and an included 6.35mm adapter, give the OX Demon King a comfortable, adaptable listening experience built for extended sessions.

First Open-Back Headphone Built On Years Of Planar Expertise

The OX Demon King marks Tangzu's first open-back planar magnetic headphone, developed after months of dedicated research into planar diaphragm technology and open-back acoustics. Every detail has been tuned for natural airflow, stable acoustic control, and a wide soundstage, while precision manufacturing gives the headphone outstanding structural stability. Its ergonomically balanced design supports a comfortable fit for extended listening sessions.

85mm Planar Magnet Driver For High-Resolution Detail

The OX Demon King uses an 85mm planar magnetic driver built from a precisely matched magnetic array, an ultra-thin, high-stability diaphragm, and carefully designed circuitry. This combination delivers rapid transient response, low distortion, and effortless detail resolution, with each component optimised for uniform force distribution and precise control. The result is exceptional dynamic performance, high resolution, and a naturally wide soundstage.

Five-Axis CNC Machined Aluminium Alloy Construction

Every structural component of the OX Demon King is machined from aerospace-grade aluminium using five-axis CNC processing, including custom hinge assemblies designed for precise rotation and even load distribution. This high-precision machining ensures superior structural stability and mechanical consistency, giving the headphone a refined tactile experience comparable to reference-grade builds.

Leather-Wrapped Earpads And Headband For Extended Comfort

The OX Demon King's earpads and headband are wrapped in soft, high-grade leather for durable, comfortable wear during long listening sessions. The high-tenacity material holds up under frequent use, while a tool-free replacement design lets users swap components easily for a personalised fit.

Standard Replaceable 3.5mm Headphone Cable

The OX Demon King comes standard with a 2 metre, high-purity oxygen-free copper cable, exquisitely crafted and equipped with a 6.3mm adapter for wider device compatibility. Its replaceable design lets users switch cables as needed, giving the headphone the flexibility to adapt to different sources and setups.

Tuned To Tangzu's Original Sound Philosophy

The OX Demon King is tuned according to Tangzu Acoustics' Original Sound as the Foundation philosophy, aiming for a sound that is powerful yet precise, and balanced yet stable. This tuning approach carries the same acoustic identity found across Tangzu's in-ear monitor lineup into its first over-ear design.

First Open-Back Headphone Built On Years Of Planar Expertise

The OX Demon King marks Tangzu's first open-back planar magnetic headphone, developed after months of dedicated research into planar diaphragm technology and open-back acoustics. Every detail has been tuned for natural airflow, stable acoustic control, and a wide soundstage, while precision manufacturing gives the headphone outstanding structural stability. Its ergonomically balanced design supports a comfortable fit for extended listening sessions.

85mm Planar Magnet Driver For High-Resolution Detail

The OX Demon King uses an 85mm planar magnetic driver built from a precisely matched magnetic array, an ultra-thin, high-stability diaphragm, and carefully designed circuitry. This combination delivers rapid transient response, low distortion, and effortless detail resolution, with each component optimised for uniform force distribution and precise control. The result is exceptional dynamic performance, high resolution, and a naturally wide soundstage.

Five-Axis CNC Machined Aluminium Alloy Construction

Every structural component of the OX Demon King is machined from aerospace-grade aluminium using five-axis CNC processing, including custom hinge assemblies designed for precise rotation and even load distribution. This high-precision machining ensures superior structural stability and mechanical consistency, giving the headphone a refined tactile experience comparable to reference-grade builds.

Leather-Wrapped Earpads And Headband For Extended Comfort

The OX Demon King's earpads and headband are wrapped in soft, high-grade leather for durable, comfortable wear during long listening sessions. The high-tenacity material holds up under frequent use, while a tool-free replacement design lets users swap components easily for a personalised fit.

Standard Replaceable 3.5mm Headphone Cable

The OX Demon King comes standard with a 2 metre, high-purity oxygen-free copper cable, exquisitely crafted and equipped with a 6.3mm adapter for wider device compatibility. Its replaceable design lets users switch cables as needed, giving the headphone the flexibility to adapt to different sources and setups.

Tuned To Tangzu's Original Sound Philosophy

The OX Demon King is tuned according to Tangzu Acoustics' Original Sound as the Foundation philosophy, aiming for a sound that is powerful yet precise, and balanced yet stable. This tuning approach carries the same acoustic identity found across Tangzu's in-ear monitor lineup into its first over-ear design.

Open-Back Design

Tangzu OX Demon King features an open-back design that lets air move freely through the earcups for a wider, more natural soundstage.

Adjustable Headband

Tangzu OX Demon King features a leather-wrapped headband that distributes weight evenly across the head for comfortable, extended wear.

Leather-Wrapped Earpads

Tangzu OX Demon King equips soft, high-grade leather earpads with a tool-free replacement design for a durable, personalised fit.

Accessories to Get you Started

1. 3.5mm Standard Detachable Cable
2. 6.3mm Adapter


Driver
Planar Magnetic Driver
Driver Configuration
85mm Planar Magnetic Driver
Impedance
25 Ohms ± 15% @ 1000Hz
Plug
3.5mm (Single-Ended)
6.3mm (Single-Ended) Adapter
Connector
Dual 3.5mm (Single-Ended)
Microphone
Without Mic


Resources

Things we really think you should know

Most of these started as a question somebody asked us, in the store or in the comments. We've been sharing answers for years, and these are the ones that matter most for gear like this. Some cover the basics. Others get into the things that quietly change how everything ends up sounding.

1 Year Warranty

Don't sweat it, this Tangzu - OX Demon King comes with a 1 Year warranty from Tangzu that covers manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

Read more about Tangzu's warranty in India.

Exceptional and Thoughtful Audio Product

TANGZU is dedicated to delivering an unparalleled music-listening journey with its premium IEMs. By partnering with top-tier manufacturers and suppliers and constantly refining their procurement and production procedures, TANGZU ensures their products adhere to the highest benchmarks. Customer service is a top priority at TANGZU, and they genuinely value your input and feedback.

Explore Collection
This headphone is quite excellent on both tonal quality and technical performance, and its frame and overall design is quite firm, very solid construction and the choices of its selected materials are of high quality.
The bass never sounds bloomy nor too thin; it is just boosted enough to balance the upper midrange and treble.

Have a question? Get in touch!

Check out the most common questions our customers ask. Still have questions? Talk to our Headphone Gurus.

Our customer support is available Monday to Friday: 11am-6pm.Average answer time: 2-3 Hours

Other Details


Generic Name Headphone
Importer Details Importers Name: Ferrari Video
Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020
Contact No: 044-24420733
Net Quantity 1
Manufacturer Details Name: Dong Guan Shi Hui Zu Dian Zi Ke Jiyou Xian Gong Si
Address: 1011/Building 3 No.99 Kang Feng Road, DA Lang Town Dongguan City Guang Dong, P.R .China
Package Contents Tangzu OX Demon King
3.5mm Standard Detachable Cable
6.3mm Adapter


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