Alsa
The Pinnacle of Quad-Hybrid Innovation
A different direction.
Some systems chase ultimate resolution.
Some chase perfection on paper.
We chose something else.
With Alsa paired with Xerxes, the goal was not just technical performance but engagement, weight and emotion.
For those who have experienced highly technical flagships and felt something was missing, this pairing may surprise you.
It is not about replacing anything.
It is about rediscovering why you listen to music in the first place.
💎 14-Driver Quad-Hybrid Architecture
Alsa pushes the boundaries of in-ear monitor design with a proprietary 14-driver configuration, delivering unmatched clarity, depth, and realism across the frequency spectrum.
Driver Setup:
2x 8mm PU+LCP Patented Dynamic Drivers – Deep, controlled bass
2x Sonion 37AAX007 Bone Conduction Drivers – Tactile mid-bass texture
4x Custom Balanced Armature Drivers – Rich, transparent mids
2x Sonion E50DT0005/D Balanced Armature Drivers – Airy, extended highs
1x Sonion EST65QB02 Electrostatic Tweeters – Ultra-high precision and shimmer
Precision Five-Way Crossover
A dedicated crossover system manages frequency distribution cleanly across ultra-low, low, mid, high, and ultra-high ranges—eliminating overlap and ensuring pinpoint clarity, low distortion, and stunning transparency.
🔊 Bass, Reimagined
Dual 8mm Patented Dynamic Drivers
AüR Audio’s signature Dual 8mm PU+LCP subwoofers lie at the core of Alsa’s sound—delivering:
Fast transient response
Controlled low-frequency energy
Natural midrange integration
Exceptionally low harmonic distortion
A rich, musical bass foundation with authority and nuance—anchoring every track with effortless control.
🌐 Next-Gen Bone Conduction
Dual High-Mass Bone Conductors by Sonion
Alsa features a revolutionary dual high-efficiency bone conduction system, pushing the limits of immersion:
Expands vibrational bandwidth
Unlocks depth, dimension, and realism
Enhances not just bass, but the entire spectrum
These drivers allow you to feel the music, not just hear it—delivering a listening experience that’s visceral, dynamic, and emotionally resonant.
🎙 Midrange Artistry
4 Custom Balanced Armature Drivers
Specially tuned for mid and upper-mids, these bespoke BA drivers deliver:
Lifelike vocal clarity
Organic tonality
Silky articulation with no harshness
Each note feels authentic and expressive, with a midrange that’s fluid and full of character.
✨ Sparkling Highs
2 Sonion Balanced Armature Tweeters
Precision-tuned to extend the treble response, these drivers bring:
Shimmering brilliance
Delicate air
Ultra-low distortion
Expect incredible micro-detail and separation that brings out the soul of your music.
🌀 Treble Without Limits
Quad Sonion Electrostatic Tweeters
Alsa’s 4 electrostatic drivers redefine ultra-high frequency performance:
Feather-light membranes for speed and accuracy
Crisp, effortless extension
Unmatched spatial layering
The result is a three-dimensional, airy top end with stunning detail retrieval and effortless brilliance.
🎧 Hear What You've Been Missing
Alsa is the culmination of years of acoustic research and tuning mastery—a no-compromise flagship IEM that delivers everything audiophiles have dreamed of.
Balanced, dynamic, textured, and endlessly engaging—it’s a technical marvel that speaks with musical soul.
🎶 Experience the Magic of Alsa
Words can only go so far.To understand the precision, depth, and emotion Alsa delivers, you have to hear it.
Apex Edition included
Alsa Universal In-Ear Monitors
Premium Leather Case
HE Sonic Galaxy Eartips (S,M,L)
Xerxes 4 Core IEM Cable with Bispa 4.4mm Plug
One Year Warranty
Cable Specifications
Xerxes cable
Length: 1.2 ± 0.1 meters
Connector: 2-Pin (0.78mm)
Plug Type: 4.4mm Balanced Bispa Plug
Alsa isn’t just another IEM—it’s a milestone.
🛠 Tech Specs (Summary)
Component Details Driver Count 14 drivers (Quad-Hybrid) Dynamic Drivers 2x 8mm Dual Subwoofer PU+LCP Bone Conduction 2x Sonion High-Mass BC Balanced Armatures 4x Custom BA (mids), 2x Sonion BA (highs) Electrostatic 1x Sonion 4 EST tweeters Crossover 5-way passive design Impedance / Sensitivity Frequency Response: 20Hz – 70kHz
Impedance: 15Ω@1KHz
Sensitivity: 102dB/mW@1KHz
Total Harmonic Distortion: <1% @ 1KHz
Connector 2-pin Shell Material 3D Resin