Delivery time approx. 1-2 weeks

Your next in-ear monitor (IEM) shouldn't simply sound like “more of the same.”

A better IEM shouldn't merely reveal more detail. It should bring greater control, spaciousness, and realism to everything you already love.

PERSEUS is made for listeners ready for more than incremental upgrades: resolution you appreciate immediately, paired with tonal body and the ease to enjoy it for hours.

01 | Listen deeper

More information, less harshness

02 | Feel closer

Vocal texture with natural weight

03 | Stop searching

A complete system from day one

Why PERSEUS?

• Made for everyday listening: Designed to be the IEM you reach for most often.

• Easy to drive: Enjoy full performance from portable sources to desktop setups.

• Developed as one system: The acoustic architecture and cable were developed together from the outset.

• Built by Effect Audio: Drawing on years of experience tuning cables and system combinations.

A COMPLETE EFFECT AUDIO SYSTEM

PERSEUS marks the entry point into Effect Audio's complete acoustic system, bringing together our expertise in IEM and cable development. Developed as a unified package, every element — from the quad-brid driver architecture and dedicated ORDINIS cable to the full-metal housing — was carefully selected and tuned to function as one cohesive system.

The design was inspired by the Harpe, the divine blade from Greek mythology carried by Perseus. The multi-angled aluminium faceplate brings this sense of precision into its form, while the rigid metal chamber provides a stable acoustic foundation for the 9-driver system inside.

Together, the acoustic architecture, the ORDINIS cable, and the aluminium housing enable PERSEUS to deliver bass control, spatial definition, clear detail, and an effortless sense of musicality from the very first listen.

Effortless Performance: 9-Driver System

Perseus introduces our first Quad-Brid driver architecture, combining two dynamic drivers, two Balanced Armature drivers, four micro-planar drivers, and one Bone Conduction unit in a single, coherent system.

• 9 Driver System

• 18 Ω impedance at 1 kHz

• 108 dB sensitivity at 1 kHz

THE PERSEUS SOUND

Neutral at its core. Lively in every detail.

PERSEUS reveals detail through control, coherence, and spatial precision — not through excessive brightness.

• Bass: Deep extension with firm control and textured punch.

• Mids: Natural notes...

COMPLETE FROM DAY ONE

PERSEUS comes complete with the specially developed ORDINIS cable, two eartip options, and a premium leather case. Choose ARC Oval for greater presence in the upper mids and highs with vocals brought closer, or Symbio F for an alternative fit and seal.

• 8 Cores: Custom-tuned ORDINIS cable

• 6 Pairs: ARC Oval + Symbio F eartips

• 1 Case: Premium leather carrying case

IN THE BOX

• Perseus IEM

• ORDINIS cable

• Perseus leather carrying case

• Cleaning tool & microfiber cleaning cloth

• Eartips: ARC Oval (S, M, L) + Symbio F (S, M, L)

Specifications

Technical Specifications (IEM)

• Drivers:

  • 2 × 8 mm LSR Dynamic Drivers for the bass range

  • 2 × Custom-Tuned 2300 Balanced Armature Drivers for the midrange

  • 4 × Planar Magnetic Tweeters for the high-frequency range

  • 1 × PTZ Bone Conduction Driver for spatial imaging

• Crossover: 4-way crossover system

• Frequency Range: 10 Hz – 40 kHz

• Sensitivity: 108 dB @ 1 kHz

• Impedance: 18 Ohms @ 1 kHz

Technical Specifications (Cable)

• Specification: 26 AWG, 8-core

• Melting Process: UP-OCC

• Jacket: EA UltraFlexi™ Insulation

• Length: 120 cm ± 5 cm

• Materials:

  • Timeless Legacy Gold-Plated Silver

  • Silver-Copper Alloy

  • Copper Litz

  • Silver Litz

• Structure:

  • Central Solid Core

  • Multi-size Core Bundle

• Connection System:

  • ConX® 2-Pin (Standard)

  • EA Standard Gold-Plated Straight Copper Plug (3.5 mm / 4.4 mm)