7Hz
7Hz Timeless II Planar In-Ear Monitors
Best planar IEM for audiophiles seeking customizable, high-resolution sound.
The 7Hz Timeless II IEMs build upon the success of their predecessor, featuring an enhanced 14.5mm planar magnetic driver with a world-first double-sided coated diaphragm for superior responsiveness. They offer an adjustable nozzle system, allowing users to fine-tune the ultra-high frequencies to their preference with various nozzle options. The redesigned 7-layer driver housing ensures precise tuning, durability, and stability. Equipped with a detachable 4-core 7N ultra-pure monocrystalline copper cable, these IEMs deliver improved warmth, body, and detail, making them a versatile choice for audiophiles and musicians seeking a refined listening experience.
$229.00
Owner Satisfaction
4.6
/ 5
Category Rank
454
/ 6142
#454 in Headphones
Price vs Category Average
-61%
Below average
Driver
14.5
/ mm planar
Who it's for
- Budget-conscious listeners wanting high-end planar performance
- Audiophiles seeking precise instrument separation and micro-detail
- Commuters needing durable gear for long listening sessions
Who should skip it
- People with smaller ears needing a low-profile fit
- Bass lovers craving a warm, colored sound profile
- Mobile users without dedicated portable amplifiers
Performance breakdown
Transient Response
The planar driver delivers lightning-fast attacks and precise, clean note decay.
Sound Customization
Adjustable nozzles provide meaningful control over high-frequency texture and presence.
Build Integrity
The seven-layer housing feels exceptionally robust and acoustically inert.
Cable Quality
Monocrystalline copper wiring offers excellent signal purity and minimal microphonics.
Ergonomic Comfort
Lightweight design ensures long-term wearability despite the larger driver housing.
Frequency Extension
Remarkable sub-bass depth and airy highs define the expansive soundstage.
Key Specs
Driver
14.5mm planar
Impedance
15.2 ohms
Sensitivity
108db/V@1KHz
Frequency Response
5-40000 Hz
Total Harmonic Distortion
<0.2%/1KHz
Connector Type
0.78mm, 2-pin
Weight per earpiece
5 g
Features
- Enhanced 14.5mm planar magnetic driver with double-sided coated diaphragm
- Adjustable nozzle system for personalized sound tuning
- Redesigned 7-layer acoustic chamber for precise tuning and stability
- Detachable 4-core 7N ultra-pure monocrystalline copper cable
- Improved warmth, body, and detail in sound reproduction
- High-resolution audio support for detailed listening
- Includes a variety of ear tips for a secure and comfortable fit
- Comes with a carrying case for portability and protection
What customers say
Customers consistently praise the 7Hz Timeless II for its exceptional sound quality, particularly its detailed and expansive planar driver presentation. Listeners frequently highlight the impressive clarity and engaging audio experience offered at its price point. This product is widely regarded as delivering outstanding value, making high fidelity sound accessible without compromise.
Know before you buy
The adjustable nozzle system allows you to physically swap out filters to fine-tune the ultra-high frequencies. This lets you tailor the treble response to match your personal preference or specific musical genres.
With an impedance of 15.2 ohms and a sensitivity of 108dB, these are relatively easy to drive. While they will work with most standard devices, using a dedicated DAC or amplifier can help you extract the full detail and warmth from the planar magnetic driver.
The double-sided coating increases the rigidity and responsiveness of the 14.5mm planar driver. This results in faster transient response and lower distortion, providing a cleaner and more accurate sound reproduction.
Yes, the Timeless II uses a standard 0.78mm 2-pin connector. This makes the cable easily detachable and replaceable with any compatible aftermarket cable.
Each earpiece weighs only 5 grams, making them quite lightweight for extended wear. The package includes a variety of ear tips, so you can experiment to find the most secure and comfortable seal for your ear shape.
Because these use a planar magnetic driver, they generally offer faster, more precise transients and a wider frequency response than many dynamic drivers. You can expect a sound that is highly detailed with a distinct sense of warmth and body.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$229