Astell&Kern
Astell & Kern x JH Audio – Diana
Best in-ear monitors for audiophiles seeking precision and durable design.
The Astell & Kern x JH Audio – Diana In-Ear Monitors are a collaboration merging Jerry Harvey Audio's renowned IEM technology with Astell&Kern's high-quality audio expertise. These IEMs feature a precisely machined aluminum shell for a robust build and visually appealing design. They utilize three balanced-armature drivers, Jerry Harvey Audio’s unique Freqphase technology, and an innovative sound hole design to deliver a rich, emotional, crispy, and airy sound profile. The ergonomic design ensures a comfortable and secure fit, making them an excellent choice for audiophiles seeking superior sound and durability.
$490.61
Owner Satisfaction
4.5
/ 5
Category Rank
756
/ 5534
#756 in Headphones
Price vs Category Average
-17%
Below average
Driver Type
3
/ Balanced Armature Drivers
Who it's for
- Audiophiles seeking precise, immersive sound across diverse music libraries
- Design-conscious listeners valuing premium build quality and aesthetics
- Commuters and long-session listeners needing reliable, fatigue-free comfort
Who should skip it
- Casual listeners on a budget seeking entry-level audio gear
- Minimalists wanting a plug-and-play experience without extra equipment
- Active users needing rugged gear that withstands rough daily handling
Performance breakdown
Sonic Clarity
Balanced-armature drivers deliver crisp, airy highs with exceptional emotional resonance.
Phase Accuracy
Freqphase technology ensures precise timing across the entire frequency spectrum.
Build Durability
Machined aluminum shell provides a robust, premium feel for daily listening.
Ergonomic Comfort
Contoured design offers a secure, fatigue-free fit for extended listening sessions.
Connectivity Versatility
Hybrid cable and included adapter support both balanced and standard outputs.
Maintenance Ease
Innovative sound bore design minimizes debris buildup for consistent long-term performance.
Key Specs
Driver Type
3 Balanced Armature Drivers
Material
Aluminum Shell
Cable
8-conductor 4N pure silver and 7N OCC copper hybrid 2.5mm 4-pole cable
Technology
Freqphase™ Time and Phase Waveguide, Acoustic Chamber Sound Bore
Features
- Collaboration between Astell & Kern and JH Audio for exceptional sound.
- Precisely machined aluminum shell for durability and aesthetics.
- Utilizes Jerry Harvey Audio's unique Freqphase technology for precise timing and phase alignment.
- Innovative Acoustic Chamber Sound Bore design reduces maintenance and optimizes treble.
- Ergonomic design for superior fit and comfort.
- Includes a 2.5mm cable and a 3.5mm adapter for versatile connectivity.
- Balanced-armature drivers offer smaller size and higher efficiency compared to dynamic drivers.
What customers say
Customers consistently praise the Astell & Kern x JH Audio Diana for its exceptional sound quality, often describing it as remarkably clear and detailed across all frequencies. The immersive audio experience is a frequent highlight. Many also appreciate the premium build and comfortable fit, noting the thoughtful design contributes to extended listening sessions without fatigue. While a significant investment, the perceived audio fidelity and craftsmanship often justify the cost for discerning listeners seeking a top tier portable audio solution.
Know before you buy
The Diana utilizes Jerry Harvey Audio’s Freqphase technology, which ensures that all frequencies arrive at your ear at the exact same time. This results in a more precise, coherent soundstage compared to traditional multi-driver setups.
Yes. While the Diana comes with a 2.5mm balanced cable for high-end audio players, it includes a 3.5mm adapter so you can easily connect them to standard smartphones, laptops, and tablets.
The precisely machined aluminum shell provides a rigid, resonance-free housing that protects the internal drivers while ensuring long-term durability. This material choice helps maintain a clean, consistent sound profile without the vibrations often found in plastic housings.
This design optimizes treble response and keeps the sound output consistent. Additionally, it helps prevent earwax or debris from entering the internal components, which reduces the need for frequent maintenance.
The Diana features an ergonomic shape designed to sit securely in the ear canal without causing fatigue. Because they use balanced-armature drivers, the housing remains compact and lightweight, making them well-suited for extended use.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$491