TRN Shell HiFi IEM Earbuds with 3DD + 1 Planar Hybrid Drivers

The TRN Shell HiFi IEM earbuds pair three dynamic drivers with one planar driver to deliver full-bodied bass, clear mids and airy treble in a single wired in-ear monitor. If you want layered sound and fine instrument detail without moving to a much more complex setup, this hybrid design is built for you.

Three included nozzle pairs let you change the tuning to match your music, and a swappable 3.5mm and 4.4mm cable gives you both standard and balanced connections. It suits everyday listening, commuting, studio-style monitoring and long music sessions at home.

For anyone searching for a TRN IEM with a planar tweeter, liquid-metal housings and a detachable Litz cable, the Shell packs these into one set that is easy to personalize.

Key Features

• 3DD + 1 Planar Hybrid Drivers: A 10.5mm beryllium-coated, 8mm PET and 6mm titanium-coated dynamic driver share frequency duties with one planar driver. This gives full-bodied bass, clear mids, crisp highs and clear instrument separation.
• Custom 6mm Planar Driver: It handles upper treble using an approximately 2μm silver conductive layer that keeps diaphragm mass low. You hear cymbal shimmer and the upper harmonics of strings and piano with good high-frequency extension.
• Three Tuning Nozzles: Reference (green ring), Immersive (red ring) and Clear (black ring) nozzles change the frequency balance through different dimensions and filter meshes. You can switch the threaded nozzles to find the sound that suits your music.
• Liquid-Metal Housings: The shell-inspired faceplates have an electroplated finish and a sculpted surface. They feel solid and durable and look distinctive.
• 4-Core Litz Cable: The 1.2m cable combines oxygen-free copper and silver-plated conductors, with 89 fine wires per core. It offers a high-quality signal path and a flexible, well-built cable.
• Swappable 3.5mm and 4.4mm Plugs: You can use standard single-ended or balanced sources without buying a second cable.
• Detachable 0.78mm 2-Pin Connectors: Replacing or upgrading the cable is simple.
• 13 Pairs of Ear Tips and Carrying Pouch: You can find a comfortable fit and good seal, and carry the IEMs safely every day. The over-ear cable routing helps keep them in place while you listen.

Why Choose the TRN Shell HiFi IEM Earbuds

The TRN Shell gives you hybrid-driver detail and adjustable tuning in one set. Instead of accepting a single fixed sound, you can swap nozzles and tune the presentation to your taste, from reference-style balance to a more immersive or clearer character.

The planar driver adds treble detail and air that many single-driver sets struggle to match, while the three dynamic drivers keep bass and mids full and controlled. The detachable cable with both 3.5mm and 4.4mm plugs means the earphones work with phones, DAPs and balanced sources you may upgrade to later.

With 13 pairs of ear tips, a carrying pouch and a durable liquid-metal build, it is ready to use out of the box. If you are looking for a TRN IEM that rewards careful listening, the Shell is a strong, versatile pick.

Best Use Cases

• Critical music listening at home
• Daily commuting and travel
• Audiophile and DAP setups using balanced 4.4mm
• Students and professionals who want detailed sound for study or work

Technical Specifications

Feature	Specification
Brand	TRN
Model	Shell
Type	Wired in-ear monitor (IEM)
Driver Configuration	3 Dynamic Drivers + 1 Planar Driver (Hybrid)
Dynamic Drivers	10.5mm beryllium-coated, 8mm PET, 6mm titanium-coated
Planar Driver	Custom 6mm, approx. 2μm silver conductive layer
Impedance	16 ohm
Housing	Liquid-metal with electroplated finish
Tuning Nozzles	3 pairs: Reference (green), Immersive (red), Clear (black)
Cable	1.2m 4-core Litz, OFC and silver-plated copper, 89 wires per core
Plugs	Swappable 3.5mm and 4.4mm
Connector	Detachable 0.78mm 2-pin
Ear Tips	13 pairs
Ear Placement	In ear, cable routed over the ear
Color	Silver