Single 10mm dynamic driver
Front housing: Stainless steel (CNC-machined)
Body housing: High-precision resin material (3D-printed)
Rear housing: Wood, semi-open type (selectable)

The new ROXA-S100(OP) was developed as a variation model of the ROXA-S100 closed type. Based on the standard ROXA-S100, the wooden back plate of the rear housing has been changed to a semi-open design. In addition, the tuning around the driver and inside the front housing has also been revised, giving it a different sound direction from the ROXA-S100 closed type.

While the ROXA-S100 closed type offers a well-balanced sound that sits at the center of 634EARS’ sound design, the ROXA-S100(OP) features a thicker, fuller sound with greater emphasis on the mid-low range. Rather than strongly highlighting sharpness or delicate detail, this model focuses on adding body and power to the overall sound, with a warm and mild listening experience. It delivers a powerful sound while keeping harshness low, making it an easy-to-listen model for enjoying music in a relaxed way.

Price)

ROXA-S100(OP)　37,800円
*Trade-in discounts are not available for this model.

The ROXA-S100(OP) adopts a phased made-to-order production system, in which each batch is carefully produced based on confirmed orders.
The first production run (1st Lot) will consist of 30 units, followed by 2nd and 3rd lots depending on demand and feedback.

This phased approach allows us to:
・Maintain stable quality despite fluctuations in global supply and exchange rates.
・Avoid excess inventory and keep pricing fair by optimizing production volume.

By crafting each batch with precision, we achieve a balance between consistent quality and reasonable pricing.

Sound Characteristics)

・A strong, powerful sound with more emphasis on the mid-low range than the S100 closed type.
・A rich mid-low range with thickness and body.
・A warm and mild tone.
・Smooth and easy-to-listen upper mids and highs with reduced harshness.
・A sound that focuses more on body, impact, and comfort than delicate detail or resolution.
・A thick and powerful sound reminiscent of the former upper model, LOAK2-TX02.

ROXA-S100(OP) is a variation model that further develops the sound of the ROXA-S100 in a warmer and more powerful direction. While the standard S100 offers a reference-like 634EARS sound that focuses on the balance between power and delicacy, the S100(OP) is tuned to deliver a thicker, fuller sound that lets you enjoy music in a more relaxed way.

The mid-low range has a solid sense of volume and density, giving vocals and instruments a warm and rich resonance. At the same time, the upper mids and highs are tuned with a mild tone and reduced harshness, allowing the sound to remain powerful while still being easy to listen to for long periods.

For those who prefer delicate and clear expression, we recommend the standard ROXA-S100. For those who want to enjoy a thicker, warmer, and more powerful sound, we recommend the ROXA-S100(OP).

Specifications)

Produced with MMCX* cable connection and disconnection.
Standard cable included（3.5mm).

*Please note that MMCX connectors may look similar, but they can differ slightly in thickness and length. Re-cabling is possible at your own risk, but please be careful when using cables with poor compatibility, as they may damage the MMCX socket on the earphone side.

Accessories)

Standard cable.
Earphone case.
Ear tips (S.M.L).
Others (sticker, simple manual)