Empire Ears Odin vs THIEAUDIO Monarch MKIV
Introduction
The Empire Ears Odin and THIEAUDIO Monarch MKIV are flagship IEMs designed to deliver an immersive, high-resolution sound experience. Let's compare both models so you can find the best in-ear monitors for your listening preferences.
Not the right fit? Browse other In-Ear Monitors from Empire Ears and THIEAUDIO.
Empire Ears Odin vs THIEAUDIO Monarch MKIV Price Comparison
The Empire Ears Odin and THIEAUDIO Monarch MKIV sit at two very different price points.
The Odin comes in at $3,399.00.
The Monarch MKIV comes in at $1,149.00.
The Raven costs significantly more than the Monarch MKIV. Let's dive deep into the specs, design, sound signatures, and features of both so you can get a better idea of what each IEM brings to the table.
The Empire Ears Odin
The Odin is Empire Ears' ultra-flagship model, featuring stunning Bifrost Faceplates, Weapon IX subwoofers, synX Crossover, and A.R.C. technology so you can experience an impactful, high-resolution sound in style.
Empire Ears Odin Features:
- 11-driver setup for unmatched impact, clarity, and detail.
- Dual W9+ subwoofers for deep, powerful bass.
- Five Balanced Armatures for natural vocals and instrumentals.
- Four Electrostatic Drivers for an airy and detailed sound.
- synX Crossover for a smooth and cohesive sound.
- A.R.C. for reduced driver vibrations and distortion.
- Premium Stormbreaker cable for seamless sound and connectivity.
Empire Ears Odin Specs:
Driver Configuration: 2x W9+ Dynamic Subwoofers, 5x Balanced Armatures, 4x Electrostatic Drivers
Frequency Response: 5 Hz - 100kHz
Sensitivity: 108dB @ 1kHz, 1mW
Crossover: 7-Way synX Crossover Network
Impedance: 3 Ohms @ 1kHz
The THIEAUDIO Monarch MKIV
The THIEAUDIO Monarch MKIV is a flagship tribrid IEM designed to deliver both precision and versatility. With dual dynamic drivers, multiple balanced armatures, and electrostatic drivers, it offers a balanced sound signature that can be enhanced through its adjustable tuning switch. Built with a CNC-machined aluminum shell and paired with THIEAUDIO's modular cable system, the Monarch MKIV blends durability, comfort, and high-end performance without the flagship price tag.
THIEAUDIO Monarch MKIV Features:
- IMPACT² Dual Dynamic Drivers: Two 8mm dynamic drivers in an isobaric configuration deliver tight, powerful sub-bass with low distortion.
- Hybrid Driver Array: Six balanced armatures and two Sonion EST drivers extend clarity across mids and highs, with treble reaching up to 40kHz.
- Adjustable Tuning Switch: Choose between STANDARD mode for reference tuning or RUMBLE mode for +3dB sub-bass emphasis and added warmth.
- CNC Aluminum Shell: Crafted from aircraft-grade T6 aluminum for improved scratch resistance, durability, and comfort.
- Chocolate Modular Cable: Includes a high-quality cable with swappable 3.5mm and 4.4mm terminations for flexible source pairing.
THIEAUDIO Monarch MKIV Specs:
- Driver Configuration: 2 dynamic (IMPACT²) + 6 balanced armatures + 2 Sonion EST
- Frequency Response: 10Hz – 44kHz
- Sensitivity: ~100 dB/mW @1kHz
- Impedance: ~10Ω @1kHz
- Crossover: 4-way passive network
- Isolation: Passive noise isolation via ergonomic aluminum shell design
Design and Build Quality
The Empire Ears Odin and Monarch MKIV are unmistakably premium IEMs, boasting exceptional build quality, design, and ergonomics.
The Empire Ears Odin boasts an eye-catching, bold design, combining a unique faceplate design with an ergonomic resin shell for a blend of style, comfort, and durability.
The Bifröst-inspired faceplates are the star of the show, featuring nine individual polymer layers in three proprietary lamination steps, which produce a multi-color aesthetic that shifts under different angles and lighting conditions.
The Odin's premium design extends to its premium cable. The included Stormbreaker cable from PWAudio boasts outstanding build quality for added style and comfort.
The THIEAUDIO Monarch MKIV carries a refined yet modern design. It features a precision CNC-machined aluminum shell that balances durability with long-wearing comfort. Its ergonomic shape ensures a secure fit while maintaining a premium feel in hand and ear. The faceplates feature subtle yet distinctive detailing, giving the MKIV a sleek, understated look compared to flashier flagships. THIEAUDIO offers two default faceplate designs: Stellashot, Kaleidoglow, alongside 14 custom options.
Completing the package is THIEAUDIO's upgraded Chocolate modular cable, a robust and flexible hybrid conductor that comes with interchangeable terminations for both 3.5mm and 4.4mm sources. This premium cable offers enhanced durability while complementing the Monarch MKIV's modern aesthetic.
Sound Signature
You're probably looking to see how these IEMs stack up on sound. We'll share our thoughts here, although keep in mind this information tends to be anecdotal and subjective.
Odin Sound Signature
The Odin was designed to showcase balance and precision, delivering a sound that’s both powerful and refined.
Its dual W9+ drivers provide deep, textured sub-bass with tight mid-bass punch - impactful yet controlled. The midrange is clear and natural, bringing vocals and instruments to life with detail and realism. Treble extends smoothly with sparkle and air, adding energy without harshness.
The soundstage is wide and holographic, creating a 3D-like experience where sound wraps around the listener with excellent layering and pinpoint imaging for an immersive experience.
Monarch MKIV Sound Signature
The Monarch MKIV is tuned for balance, refinement, and versatility. Compared to the MKIII, it brings tighter bass control, a smoother treble, and a more natural midrange presentation.
The bass is delivered through its IMPACT² dual dynamic drivers, offering deep extension with clean, textured sub-bass and a punchy mid-bass that avoids bloat. In RUMBLE mode, the low-end gains extra weight and warmth, while STANDARD mode keeps the presentation accurate and controlled.
The midrange is neutral and accurate, giving vocals a lifelike tone and instruments a clear, well-layered presence. Treble is airy and extended, with the EST drivers adding crisp detail and shimmer without sounding harsh. The soundstage is wide and spacious, offering excellent separation and imaging that makes the presentation immersive and life-like.
Price and Value
At $3,399, the Odin represents Empire Ears’ ultimate vision of summit-fi performance. It features an ambitious 11-driver tribrid design, delivering impact and immersion you won't get with lower-tier IEMs. Its Bifrost faceplates and bespoke Stormbreaker cable give it aesthetics and feel unlike any other in-ear monitor on the market.
In the box, the Empire Ears Odin comes with a premium case, cleaning cloth, cleaning tool, and Final Audio Type E ear tips in various sizes.
At $1,149, the Monarch MKIV delivers flagship-level performance without the flagship price tag. At that price, you’re getting a tribrid driver setup with dual dynamic subwoofers, Sonion EST treble drivers, and six Sonion precision balanced armatures - all tuned for versatility with STANDARD and RUMBLE modes. Add in the CNC-machined aluminum shell, modular Chocolate cable, and THIEAUDIO's crossover design, and the MKIV stands out as one of the best value IEMs in its class, offering near top-of-the-line sound at an accessible price.
Our Thoughts
The Empire Ears Odin is a flagship IEM designed to deliver an exciting and bold sound. The Odin doesn't aim for the ultimate accuracy and detail, instead offering a more musical and enjoyable sound that will make your favorite playlists sound alive and exciting. Get the Odin if you love bass and want an immersive listening experience for music, movies, and games.
The Monarch MKIV is designed for audiophiles who want reference-grade performance with the flexibility to dial in more bass when desired. It’s ideal for listeners who value balance, detail, and spacious presentation, but also enjoy the option of added low-end impact for modern genres. If you’re looking for a flagship-level tribrid IEM under $1,000 that blends technical precision with versatility, the Monarch MKIV is the in-ear monitor to get.
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