Astell&Kern
Astell Kern x JH Diana 3-Driver In-Ear Monitor IEM Earphone
Best in-ear monitors for audiophiles seeking precise, high-fidelity sound.
Immerse yourself in superior sound with the Astell Kern x JH Diana IEMs. This collaboration blends Jerry Harvey Audio's custom earphone expertise with Astell&Kern's premium audio manufacturing. Featuring a durable full metal construction, these monitors utilize patented Freqphase, Timephase, and Waveguide technology to ensure precise phase accuracy and minimize signal distortion. The hybrid cable, crafted from pure silver and silver-plated copper, delivers a balanced audio profile. Its unique Acoustic Chamber Sound Bore design enhances treble and airflow while preventing debris buildup, offering an exceptional listening experience.
$599.99
Owner Satisfaction
4.6
/ 5
Category Rank
352
/ 5533
#352 in Headphones
Price vs Category Average
+2%
Above average
Model
Astell Kern x Jerry Harvey Diana
/ Astell Kern x Jerry Harvey Diana
Who it's for
- Listeners prioritizing accurate imaging and natural soundstage coherence
- Collectors valuing premium build quality and sophisticated aesthetics
- Audiophiles seeking surgical precision and intricate musical detail
Who should skip it
- Users with sensitive ears requiring ergonomic, lightweight comfort
- Casual listeners on a budget seeking entry-level pricing
- Bassheads craving visceral sub-bass impact and dynamic rumble
Performance breakdown
Phase Accuracy
Freqphase technology ensures impeccable timing across all frequency ranges.
Build Durability
Full metal construction provides a robust, premium feel for daily use.
Passive Isolation
Blocks external noise effectively for an immersive, distraction-free listening environment.
Treble Clarity
Acoustic chamber design delivers crisp, airy highs without harshness.
Cable Quality
Hybrid silver and copper wiring maintains signal integrity and balanced output.
Ergonomic Comfort
Multiple ear tip sizes ensure a secure fit for extended sessions.
Key Specs
Model
Astell Kern x Jerry Harvey Diana
Body Color
Red
Type
Universal fit IEM
Driver Unit
3-way 3 Drivers (3BA per side)
Impedance
18 ohms
Noise Isolation
-26dB
Sound Technology
Freqphase™ Time | Phase Waveguide / New Sound Bore
Components
2.5mm Balanced Cable, 3.5mm connector, 3 sizes of Silicon Ear tips (S, M, L), Carrying Case
Features
- Premium collaboration for audiophile-grade sound
- Durable and elegant full metal construction
- Patented phase and time correction technology
- Hybrid silver and copper cable for balanced audio
- Optimized sound bore for enhanced treble
- Precise music reproduction across all frequencies
- Includes balanced cable and versatile connector
- Comfortable fit with multiple ear tip sizes
What customers say
These in ear monitors receive high praise for their superior craftsmanship and exceptional audio fidelity. Listeners consistently highlight the remarkably balanced and detailed sound signature, supporting extended use without fatigue. Vocals and instruments sound lifelike due to excellent midrange resolution and airy highs. The precision machined shells reflect premium build quality. While the sound is outstanding, some users note the bass is accurate but may lack deep impact for certain genres. Ultimately, these IEMs stand out as a top tier choice for those prioritizing high fidelity and superior construction.
Know before you buy
The Diana features a 3-driver balanced armature setup that delivers a precise, balanced audio profile. Thanks to the patented Freqphase and Waveguide technology, you get accurate phase alignment across all frequencies, resulting in a clean, detailed sound that works well for both studio monitoring and casual listening.
Yes, the universal fit design is crafted for comfort and includes three sizes of silicon ear tips to help you find a secure seal. The full metal construction is durable, yet the ergonomic shape is designed to sit comfortably in the ear for extended periods.
No, the Diana uses passive noise isolation rather than active electronic cancellation. It provides up to -26dB of noise isolation, which effectively blocks out ambient environmental noise by creating a tight physical seal in your ear canal.
The Diana comes with a 3.5mm connector, making it compatible with most standard headphone jacks on laptops and mobile devices. However, because these are audiophile-grade monitors, you may get the best performance by pairing them with a dedicated high-resolution digital audio player or a quality external DAC.
The hybrid cable combines the conductivity of pure silver with the warmth of silver-plated copper. This combination is designed to maintain signal integrity and provide a balanced, clear audio transmission from your source to the drivers.
This design is specifically engineered to enhance treble clarity and improve airflow within the housing. Additionally, the structure helps prevent debris and earwax from entering the sound bore, which keeps the drivers protected and ensures consistent audio performance over time.
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