Experience Hybrid Sound Without the Hybrid Price

The TANCHJIM OLA II is the complete evolution of the highly acclaimed OLA series. Moving beyond the original single dynamic driver design, the OLA II introduces a coaxial 1 Dynamic Driver + 1 Balanced Armature hybrid architecture, delivering significantly better clarity, wider frequency extension, lower distortion, and a more natural listening experience.

Designed for audiophiles, musicians, gamers, and everyday music lovers, the OLA II combines TANCHJIM's proprietary DMT5 Dual Magnetic Circuit Dynamic Driver, the new PURE-Hi Ultra-High Frequency Balanced Armature, premium CNC-machined construction, and three connection options including an advanced DSP Type-C version with 8-band Parametric EQ.

Whether you enjoy vocals, orchestral music, rock, EDM, jazz, gaming, or movies, the OLA II delivers a clean, balanced, and highly detailed presentation that performs well across every genre.

Why Choose the TANCHJIM OLA II?

Unlike many budget hybrid IEMs that struggle with coherence between drivers, the OLA II uses a true coaxial acoustic design, placing both drivers on the same acoustic axis. This creates a seamless transition across the frequency range with better imaging, accurate instrument placement, and natural vocals.

Combined with an ultra-low distortion level of just 0.03% THD, the OLA II offers a level of refinement rarely found in its price category.

Proprietary DMT5 Dynamic Driver

At the heart of the OLA II sits TANCHJIM's latest 10mm DMT5 Dynamic Driver, engineered specifically to deliver powerful bass, natural mids, and excellent transient response.

The driver features:

• Dual magnetic circuit design
• Dual cavity acoustic structure
• Optimized diaphragm through finite element analysis
• Higher magnetic flux density
• Longer diaphragm excursion
• Better large signal control

This results in:

• Deeper bass extension
• Faster bass response
• Cleaner midrange
• Better dynamics
• Reduced distortion at higher listening volumes

PURE-Hi Balanced Armature for Exceptional Treble

Instead of forcing the dynamic driver to reproduce every frequency, TANCHJIM adds its newly developed PURE-Hi Balanced Armature dedicated exclusively to the highest frequencies.

Benefits include:

• Better air and sparkle
• Cleaner harmonics
• Improved micro-details
• More realistic cymbals and strings
• Reduced listening fatigue

By allowing each driver to focus on its strengths, the OLA II achieves a far more natural and effortless presentation.

Coaxial Hybrid Design for Better Coherence

Many hybrid earphones suffer from inconsistent imaging because their drivers sit in different positions.

The OLA II solves this by aligning both drivers on the same acoustic axis.

Advantages include:

• More accurate stereo imaging
• Better instrument separation
• Stable center vocals
• Precise sound localisation
• Consistent tonal balance

The result is music that sounds unified instead of split between multiple drivers.

Richer Vocals with Helmholtz Acoustic Chamber

The specially engineered rear cavity functions as a Helmholtz Resonator, carefully controlling internal air pressure to reinforce the vocal frequencies.

Listeners benefit from:

• Fuller male vocals
• Better female vocal presence
• Improved instrument body
• Natural timbre
• Excellent long-term listening comfort

Whether listening to acoustic recordings or vocal-heavy tracks, voices remain realistic and engaging.

DSP Type-C Version with Professional 8-Band PEQ

The DSP Type-C version transforms the OLA II into a fully customizable digital audio solution.

Features include:

• 384kHz / 32-bit decoding
• 8-band Parametric Equalizer
• Adjustable Frequency
• Adjustable Gain
• Adjustable Q Factor
• TANCHJIM App support
• Community EQ Presets
• Fine tuning for different music genres

Whether you prefer a reference sound or extra bass, the DSP version lets you personalize the tuning without compromising audio quality.

Three Versions to Match Every Audio Setup

Choose the version that best suits your device and listening style.

3.5mm Version

Perfect for smartphones, laptops, DACs and portable players.

• Includes microphone
• Universal compatibility
• Ideal for everyday use

4.4mm Balanced Version

Built for audiophiles using balanced outputs.

• Higher output power
• Lower noise floor
• Improved channel separation
• No microphone

DSP Type-C Version

Ideal for modern smartphones and laptops.

• Built-in high-resolution DSP
• 8-band Parametric EQ
• Microphone included
• Plug-and-play convenience

Comfortable for Hours of Listening

The compact shell has been refined using data collected from over 3,000 ear scans, ensuring a secure and comfortable fit for a wide variety of ear shapes.

The lightweight construction helps reduce fatigue during:

• Long music sessions
• Gaming
• Video streaming
• Office work
• Daily commuting

Premium CNC Aluminium Construction

The faceplate is precision-machined from aerospace-grade aluminium, while the transparent PC shell showcases the internal acoustic design.

Benefits include:

• Premium appearance
• Lightweight design
• Improved durability
• Comfortable everyday wear

High-Purity Litz Silver-Plated Copper Cable

The included cable is designed for stable signal transmission and long-term durability.

Features include:

• Litz braided structure
• Silver-plated copper conductors
• Reduced electromagnetic interference
• Lower signal loss
• Detachable 0.78mm 2-Pin connector

Upgrade cables anytime thanks to the standard 2-pin connection.

Who Is the TANCHJIM OLA II For?

The OLA II is an excellent choice if you're looking for:

• Your first high-quality audiophile IEM
• A balanced tuning with excellent vocals
• Better detail than typical single dynamic driver earphones
• Low distortion and accurate sound
• Customizable DSP EQ
• A comfortable daily-use earphone
• Gaming with accurate positional audio
• A premium IEM without spending flagship money

Frequently Asked Questions

Is the TANCHJIM OLA II good for vocals?

Yes. Its Helmholtz acoustic chamber and coaxial driver design produce rich, natural, and well-defined vocals for both male and female singers.

Is the bass strong?

The bass is clean, controlled, and dynamic rather than overly boosted. It prioritizes texture, speed, and accuracy over excessive quantity.

Does the DSP version work without a DAC?

Yes. The DSP Type-C version includes its own built-in high-resolution DSP and DAC, allowing direct connection to compatible USB Type-C devices.

Can I change the sound signature?

Yes. The DSP Type-C version supports an 8-band Parametric EQ through the TANCHJIM App, allowing complete tuning customization.

Does it support cable upgrades?

Yes. It uses a standard 0.78mm 2-pin detachable cable.

Which version should I buy?

• 3.5mm – Best for universal compatibility and includes a microphone.
• 4.4mm – Best for balanced outputs on dedicated DACs and DAPs.
• DSP Type-C – Best for smartphones and users who want customizable EQ.