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Symphonium Audio

Symphonium Audio Crimson In-Ear Headphones

Symphonium Audio Crimson In-Ear Headphones

Regular price $1,499
Sale price $1,499 Regular price $1,499.00

Wearing style More information
Over-ear headphones sit over your ear and surround your ear with a ring of padding. On-ear headphones are padded but rest on top of your ear. In-ear monitors are worn inside your ear canal.


Driver type More information
Speakers and headphones use a device called a 'driver' to create sound. Different types of drivers have different strengths and weaknesses, but can all produce great sound. Common varieties include dynamic, planar magnetic, and electrostatic.

Balanced Armature

Connectivity More information
Connectivity refers to the method in which the headphones connect to the audio source. Headphones can be either wired or wireless.


Portability More information
DACs and amplifiers can either be carried around or meant for static desktop use


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Symphonium Audio

Symphonium Audio Crimson In-Ear Headphones

Regular price $1,499
Sale price $1,499 Regular price $1,499.00

Discover the pinnacle of audio evolution with the new Symphonium Audio Crimson In-Ear Monitor Headphones, the latest addition to the Symphonium Audio lineup. Crafted through two years of meticulous research and development, the Crimson sets a new standard for in-ear audio excellence.

Launch Edition Exclusive

Don't miss out on the exclusive Launch Edition with an 8-wire Altalune Audio Novaron 26AWG Type 2 Litz OCC copper cable, Limited Edition Packaging, and a Signed Card from the Symphonium Team. Get it now for only $1499USD (regular price $1699) and rediscover your love for music!

*Launch Edition Completely sold through. From the and Symphonium Audio teams, thank you for your support!

Bold Sound, Captivating Bass

Get ready to immerse yourself in an unparalleled sound experience. The Crimson boasts a captivating sound profile with a dynamic bass presentation that rivals high-end speaker setups. Its unique PHAT technology enhances treble response, delivering smooth, extended, and class-leading resolution.

Live-Stage Experience

Imagine standing in front of a live stage, with organic vocals, commanding low-end authority, and impeccable control. The Crimson perfectly balances these elements, offering a dynamic and engaging listening experience like never before.

FLAT + PHAT Technologies

The Crimson harmonizes the best of both worlds: PHAT technology ensures no frequency inversions or phase cancellations, while FLAT technology guarantees low impedance and immunity from impedance mismatch. Whatever the challenge, the Crimson rises above.

Refined Shell Design

Designed for comfort, the Crimson's shell has been meticulously refined based on community feedback. Its ergonomic shape fits snugly in smaller ears, while the high-grade T6 heat-treated AL6061 Aluminium alloy construction ensures durability and lasting performance.

Premium Forged Carbon

Pay homage to luxury with the Crimson's premium forged carbon faceplate. This distinctive material, renowned in jewelry, watchmaking, and luxury vehicles, adorns each unit uniquely, embodying both origin and resilience.

Exclusive Altalune Novaron Cable

Experience superior connectivity with the exclusive Altalune Novaron cable, available in 4-wire or 8-wire configurations. The OE interchangeable plugs feature super low impedance, offering seamless compatibility with various source devices for a plug-and-play experience.


  • True 4-Way Crossover: Unleash the potential of each driver with the true 4-way crossover technology. Symphonium Audio's precision tuning ensures a sound quality that transcends expectations.
  • Pair Matched Perfection: Each pair of Crimson earphones undergoes rigorous matching to ensure an unparalleled listening journey that delights the senses.
  • Quality EarTips Included: Enjoy a flawless fit with the included Azla Sednafit Standard and Divinus Velvet Eartips, providing comfort and enhancing your audio experience.

Technical Specifications

  • Custom Tuned True 4-Way Crossover with FLAT Technology
  • Frequency Response: 10Hz - 24kHz, ± 2 dB
  • Sensitivity: 106dB/Vrms @ 1 kHz
  • Impedance: 6.05 Ohms @ 1 kHz
  • Cable: 26 AWG Pure OCC Copper Litz (4-Wire or 8-Wire Option)
  • Cable Impedance: 0.12 Ohms (3.5mm), 0.12 Ohms (4.4mm) @ 1kHz (8-Wire)
  • Limited 1-Year Warranty

Elevate your audio experience with the Symphonium Audio Crimson In-Ear Monitor Headphones. Order now at and embrace a new era of sound excellence.

Our review

Video review