7Hz 7Hz Timeless II IEM

7Hz Timeless II IEM

7Hz

4.5/ 5.0 Worthyva score
¥1,399 (≈$196 USD)¥1,799-22%Check PricePaid link

Key Specifications

Specification

Value

Model

7Hz Timeless II (Timeless 2)

Driver Configuration

14.5mm Planar Magnetic Driver (Second-Generation)

Diaphragm Thickness

Ultra-thin Sub-Micron Diaphragm

Magnet Structure

High-Magnetic Flux Neodymium Array

Shell Material

CNC Machined Aviation-Grade Aluminum Alloy Shell

Frequency Response

5 Hz – 40 kHz

Sensitivity

108 dB/Vrms (@1kHz)

Impedance

14.8 Ω (@1kHz)

THD+N

< 0.2% (@1kHz, 94dB)

Cable Connector

0.78mm 2-Pin

Cable Material

High-Purity Single Crystal Copper Silver-Plated Cable

Plug Terminals

Swappable Modular Plugs (3.5mm Single-ended & 4.4mm Balanced included)

Compatibility

Universal audio sources, smartphones, DAC/Amps, DAPs

Specs →

ReviewFull Review →

The 7Hz Timeless II is a mid-range planar magnetic IEM designed for listeners who want high resolution, fast transients, strong separation, and a spacious presentation without moving into the high-end price range. With a 14.5mm planar magnetic driver, interchangeable tuning nozzles, a modular 3.5mm/4.4mm cable, and a metal shell, it combines several features that make it more versatile than a typical single-purpose planar IEM.

Its sound is clean, energetic, and detailed. The bass has good sub-bass extension and faster decay than many dynamic-driver IEMs, while offering more weight than the lean planar tuning found on some earlier models. The midrange is clear and well separated, although listeners who prefer thick, warm vocals may find it somewhat lean. Treble extension and air are among its strongest qualities, helping guitars, cymbals, electronic textures, and ambient details stand out. However, the upper frequencies can still feel energetic for treble-sensitive listeners.

The Timeless II also performs well spatially. Its wide presentation, separation, and imaging make it particularly suitable for classical music, jazz, rock, electronic music, game soundtracks, and complex pop productions. Its fast transient response is another advantage for gaming and recordings with dense arrangements.

Despite its technical strengths, the Timeless II has some limitations. The large circular metal shells may not be comfortable for smaller ears, and its tonal balance is not aimed at listeners who want extremely warm vocals or bass-heavy sound. It is also easy enough to drive from a good USB dongle DAC, so a powerful desktop amplifier is not necessary.

Overall, the 7Hz Timeless II is best suited to listeners who value planar speed, detail, spatial performance, and tuning flexibility. Its value depends heavily on the selling price, but at a competitive discount, it remains a strong option in the mid-range planar IEM market.

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