The Noble Onyx Universal IEM in-ear monitors feature an eight-driver quadbrid acoustic architecture engineered for listeners demanding reference-calibre portable audio performance. Serving as high-performance in-ear headphones, each precision-machined aluminium chassis incorporates a 10mm dynamic driver, four Knowles balanced armatures, dual Sonion electrostatic tweeters, and a PZT bone conductor to achieve extended bandwidth from 20Hz to 70kHz. The system effortlessly reproduces intricate instrumental layers and broad dynamic swings without introducing harmonic distortion.The Hi-Fi Centre Team TakeThe Noble Onyx establishes a commanding physical presence in the low end alongside electrostatic speed, making it thoroughly engaging during long, focused listening sessions. The ergonomic aluminium shells seat comfortably and maintain an effective acoustic seal that attenuates outside distractions without causing in-ear fatigue. Rather than presenting micro-detail with sterile brightness, the bone-conduction element introduces natural spatial width and physical decay that mirrors open-air listening. It is a remarkably complete personal audio solution for anyone seeking unyielding resolution in a portable format.Key Features Quadbrid Acoustic Array: Integrates dynamic, balanced armature, electrostatic, and PZT bone conduction transducers to deliver linear coverage across the audible frequency band. Billet Aluminium Enclosure: Precision-milled metal shells eliminate internal resonance and house dark Raffir composite faceplates for durable everyday performance. Eletech Courage Cable: Cryogenically treated four-core silver-plated copper cabling with a 4.4mm balanced Pentaconn termination preserves high-frequency transparency and channel separation. Authorized Dealer Guarantee: Hi-Fi Centre is an Authorized Dealer for Noble, ensuring authentic factory warranty coverage and long-term technical product support. Technical Specifications Brand & Model: Noble Onyx Universal IEM Design Type: Universal in-ear monitor Transducer Complement: 1x 10mm dynamic driver, 4x Knowles balanced armatures, 2x Sonion electrostatic drivers, 1x PZT bone conductor Frequency Response: 20Hz – 70,000Hz Impedance: 14 Ohms Sensitivity: 108 dB @ 1kHz Chassis Material: CNC machined aluminium with Raffir composite faceplates Cable Interface: 0.78mm 2-pin to 4.4mm balanced Pentaconn (Eletech Courage)