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The SIGMA is equipped with a 6mm LCP (Liquid Crystal Polymer) composite diaphragm dynamic driver for deep, rich bass, and a custom 60040 balanced armature driver to handle mid and high frequencies with precision. This hybrid dual-driver architecture offers a seamless blend of dynamic and balanced armature performance, ensuring a well-rounded and detailed sound signature with all the intricate details of your favorite tracks.
The newly designed 6mm dynamic driver features an LCP composite diaphragm. Its orderly molecular structure ensures excellent acoustic transmission, minimizing resonance and distortion while delivering smooth, natural tones. This results in clearer, more precise audio with an enhanced frequency response for a truly high-fidelity listening experience.
Specially designed for the SIGMA, the 60040 balanced armature excels in delivering fast, accurate, and detailed mid and high frequencies. Its low distortion and smooth frequency response ensure a natural and vibrant sound, revealing nuances and textures in your music that are often overlooked.
The artful acoustic tuning of the SIGMA delivers a balanced sound signature that’s both smooth and versatile. High frequencies are bright and natural, while the low frequencies are impactful yet controlled. The result is a transparent, wide soundstage with rich details, making the SIGMA ideal for a variety of music genres.
The SIGMA features an all-coaxial integrated acoustic chamber for reduced internal reflections and minimized distortion. Every component, from the sound tube to the drivers, is meticulously engineered for perfect synergy, ensuring a cohesive and natural listening experience.
Blending aluminum alloy with transparent resin, the SIGMA showcases its sophisticated internal acoustic components. Its minimalist yet futuristic aesthetic reflects both elegance and technological prowess. Compact and lightweight, the design is as beautiful as it is functional.
The SIGMA comes equipped with a high-purity silver-plated oxygen-free copper cable, which ensures optimal conductivity and minimizes signal loss. This combination enhances sound clarity and detail, bringing your music to life with richer textures and greater resolution.
Included with SIGMA is a Type-C to 3.5mm DAC adapter featuring a DCA decoding chip that supports up to 32-bit/384kHz sampling rates. This plug-and-play adapter delivers high-fidelity audio reproduction, bringing you closer to a live performance experience.
To further refine your audio experience, the SIGMA includes a 30Ω impedance adapter. This accessory reduces noise from your audio source, ensuring a cleaner and more immersive listening session.
| Model | SIGMA |
|---|---|
| Driver Configuration | 6mm LCP dynamic driver + 60040 balanced armature |
| Diaphragm Material | LCP Composite |
| Impedance | 30Ω ± 3 (@1kHz) |
| Sensitivity | 107dB/Vrms (@1kHz) |
| Frequency Response | 15Hz–37kHz |
| Connector Type | 0.78mm 2-pin |
| Cable Plug | 3.5mm stereo single-ended |
| Note | Does not support inline microphone or remote functionality. |
A new tariff system will take effect across all 27 EU member states starting 1 July 2026. The EU is abolishing the duty exemption for low-value parcels — all goods entering the EU will now be subject to customs duties, including a fixed duty of €3 per HS tariff code category for IOSS-declared goods under €150.
A handling surcharge of USD $5 has been applied to all standard shipments to EU countries on orders under $500. Orders over $500 qualify for free expedited shipping.
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In the event that a shipment is refused, undeliverable, or returned to sender, HiFiCat will process a refund to the original payment method. If a customer requests reshipment, a reshipment fee will apply. A restocking fee of up to 20% may also apply.
All taxes and duties are prepaid (DDP). 5–10 working days. Free standard shipping.
Tracking examples:
Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Cyprus
All taxes and duties are prepaid (DDP). 10–15 working days.
💰 Shipping cost: $5.00 USD (orders $0–$500) | Free (orders $500+, via DHL Express)
Tracking examples:
Norway, Switzerland, Ukraine, Armenia, North Macedonia, Moldova, Monaco, San Marino, Vatican City, Serbia, Albania, Kosovo, Montenegro, Bosnia & Herzegovina, Belarus, Georgia, Andorra, Guernsey, Jersey, Faroe Islands, Svalbard & Jan Mayen, Guadeloupe, Réunion, Gibraltar, Isle of Man, Mayotte, Iceland, Liechtenstein, Turkey
All taxes and duties are prepaid (DDP). 10–15 working days. Free standard shipping.
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