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TANCHJIM

TANCHJIM x Effect Audio Force Open-ear Dual Dynamic Flagship In-Ear

TANCHJIM x Effect Audio Force Open-ear Dual Dynamic Flagship In-Ear

Regular price $279.99 USD
Regular price $279.99 USD Sale price $279.99 USD
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TANCHJIM x Effect Audio FORCE Open-Back Dual Dynamic Flagship In-Ear Headphones

Key Features:

  • Dual Composite Dynamic Drivers: 8.2mm beryllium-coated and 10mm titanium-coated diaphragm with PU suspended edge for rich mids and powerful bass.
  • Open-Back Acoustic Design: Reduces pressure buildup, expands soundstage, and relieves ear canal fatigue.
  • HPFD-Seg Technology: High-precision frequency domain crossover ensures low distortion and smooth driver integration.
  • EFFECT AUDIO Custom Cable: 26AWG silver-plated UP-OCC copper, with 0.78mm to 4-pin replaceable connector (3.5/4.4/DSP plugs included).
  • Pressure-Relief Vent: Eliminates "plugged ear" effect and reduces internal ear pressure.
  • UltraFlex™ Jacket: Silky soft, transparent cable sheath enhances comfort and aesthetics.
  • App Customization Support: Includes Type-C DSP plug with 5-band PEQ and user community sound sharing.

Technology and Acoustic Design:

FORCE represents the culmination of TANCHJIM’s acoustic artistry and EFFECT AUDIO’s cable engineering. Built on DMT 4 ULTRA architecture, it combines two custom dynamic drivers with CNC-machined aluminum faceplates and 3D-printed medical-grade resin shells for premium comfort and sound fidelity.

Using HPFD-Seg frequency domain crossover, the 8.2mm and 10mm drivers maintain optimal operating ranges, yielding THD as low as 0.036%. The open-back design and patented vent system reduce listening fatigue and deliver expansive, natural imaging.

The bundled EFFECT AUDIO cable uses UP-OCC silver-plated copper, tuned for balanced tonality and energy. Users can swap between 3.5mm, 4.4mm, and Type-C DSP terminations, the latter supporting TANCHJIM’s dedicated tuning app for PEQ adjustment and shared profiles.

Technical Specifications:

Parameter Details
Driver Configuration 8.2mm beryllium + 10mm titanium dynamic drivers
Impedance 17Ω ±10%
Sensitivity 120dB/Vrms
THD ≤0.05% @1kHz 94dB
Frequency Response 8Hz - 48kHz
Cable Brand EFFECT AUDIO
Cable Material UP-OCC silver-plated copper
Connector 0.78mm 2-pin to 4-pin system
Plug Options 3.5mm, 4.4mm, DSP Type-C
Shell Material Medical-grade resin + CNC aluminum

Package Includes:

  • FORCE Earphones ×1
  • EFFECT AUDIO Custom Cable ×1
  • 3.5mm Plug ×1
  • 4.4mm Plug ×1
  • Type-C DSP Plug ×1
  • Silicone Eartips ×6 pairs
  • User Manual ×1
  • Premium Leather Carrying Case ×1

 


Shipping & Returns

  • Free Standard full searchable Shipping
  • DDP(Delivered Duty Paid) Services, No payment on receiption
  • Free 7-Day Return Policy!

⚠️ Important Notice: EU Customs Reform Effective 1 July 2026

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.


Shipping Fees & Couriers

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  • Standard Shipping: Yunexpress, 4PX, NinjaVan
  • Special Country Channels: India – Yitong Express | United Kingdom – Royal Mail | Japan – Sagawa Global Transportation
  • Express Shipping (orders over $500 ship free): DHL Express, FedEx, UPS, SF Express

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.


Shipping Rates & Estimated Delivery Times

1. France, Germany, United Kingdom, Italy, Spain, Poland

All taxes and duties are prepaid (DDP). 5–10 working days. Free standard shipping.

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2. EU 27 Countries (Standard Shipping)

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)

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3. Other European Countries (Free Standard Shipping)

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.

4. Americas

5. Oceania

6. Asia


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