Stealth Sonics U9 IEM Universal

Stealth Sonics U9 IEM Universal – 9-Driver In-Ear Monitor

The U9 is a 9-driver hybrid in-ear monitor system featuring 8 balanced armatures and a 9 mm high-density neodymium magnetic dynamic driver. Designed for extreme detail, precision and clarity, it offers a frequency response of 18 Hz–40 kHz. The configuration delivers deep bass, a transparent mid-range, clear highs and an immersive soundstage.

The IEMs are housed in an acoustically optimized composite material featuring Stealth Kompozit and weigh 4.9 grams per side. The Klarity valve reduces pressure build-up and fatigue in the ear canal during extended use. Stealth Damping provides a morecontrolled bass response, while SonicFlo Acoustics reduces resonance and cancellation.

Features and Specifications
Number of drivers: 9
Hybrid design configuration
1 × 9 mm high-density neodymium magnetic dynamic driver
2 × balanced armature for mid-range
2 × balanced armature for high frequencies
4 × balanced armature for super-high frequencies
Isolation: -26 dB
Bores: 3 asymmetrical bores
Crossover: 4-way
Frequency response: 18 Hz–40 kHz
Sensitivity: 108 dB SOK @ 1 mW
Impedance: 16 ohms @ 1 kHz
THD: ≤1% @ 1 kHz
Weight: 4.9 g per side
Klarity valve
Stealth Damping
SonicFlo Acoustics

What Comes in the Box
1 pair of IEMs with carbon fibre faceplates affixed
1 pair of spare faceplates with Allen key
1 Stealth IEM Pro cable
1 Stealth IEM cable with in-line microphone
3 pairs of foam eartips in different sizes
3 pairs of silicone tips in different sizes
1 pair of double-flange eartips in different sizes
¼-inch jack
1 soft-shell IEM case
1 suede IEM pouch
1 cleaning cloth