64 Audio Nio Universal Hybrid In-Ear Monitors

The 64 Audio Nio is a high-performance 9-driver hybrid IEM that delivers lush low-end depth, rich mids, and extended highs with a holographic soundstage. Its unique configuration features a powerful 9mm dynamic driver paired with eight balanced armature drivers and an integrated 4-way crossover for seamless sonic balance. Nio is also the first UIEM from 64 Audio to feature a naturally sourced blue abalone faceplate, making each unit visually distinct. Powered by proprietary tia™, apex™, and LID™ technologies, Nio offers adaptable tuning, enhanced comfort, and consistent performance across all playback sources.

Specifications

• Driver Configuration: 1 tia High Driver, 1 High-Mid Driver, 6 Mid Drivers, 1 9mm Dynamic Low Driver
• Frequency Response: 10 Hz – 20 kHz
• Sensitivity: 105 dB/mW @ 1 kHz
• Impedance: 6 Ω @ 1 kHz
• Crossover: Integrated 4-Way Passive Crossover
• Apex Isolation: -10 dB (mX), -15 dB (m15), -20 dB (m20)
• Shell Material: Machined Aluminum with Blue Abalone Faceplate
• Color: Black Shell with Unique Blue Faceplate
• Cable: Black Premium Cable – Silver-Plated OCC Copper (7x7x4 Multi-Twist, 26 AWG, 0.23Ω), 3.5mm Termination
• Included Accessories: Premium Leather Case, TrueFidelity Foam Tips (S/M/L), SpinFit Silicone Tips (S/M/L), Standard Silicone Tips (S/M/L), Apex Modules (m20, m15, mX), Round Sticker
• Technology: tia™ Driver & Single-Bore, apex™ Venting System, LID™ Circuitry
• Fit: Universal
• Designed & Assembled: In the USA with globally sourced components

Expanded Key Features List

• 9-Driver Hybrid Design: Combines 8 balanced armature drivers and a 9mm dynamic driver for a dynamic, well-balanced sound.
• tia™ High Driver & Single-Bore: Offers transparent, distortion-free highs and open treble with greater realism and clarity.
• apex™ Venting Modules: Includes m20, m15, and mX modules to customize isolation and soundstage while reducing ear fatigue.
• LID™ Circuit: Maintains consistent sound tuning regardless of the output device’s impedance.
• 4-Way Passive Crossover: Ensures seamless driver integration and coherent frequency separation across lows, mids, and highs.
• Natural Blue Abalone Faceplate: Each unit is uniquely finished, providing a luxurious and organic aesthetic.
• Premium Build Quality: Durable aluminum shell construction with precision machining and elegant faceplate design.
• Black Premium Cable: High-purity silver-plated copper cable with low resistance and excellent flexibility, terminated in 3.5mm.

Q&A Section

Q: What kind of sound signature does the Nio have?
A: Nio offers a rich, bass-forward signature with smooth highs and natural warmth, ideal for long listening sessions across multiple genres.

Q: How many drivers are inside the Nio?
A: Nio features a 9-driver hybrid configuration: 1 dynamic driver for lows, 6 balanced armature drivers for mids, 1 high-mid, and 1 tia high driver.

Q: What’s the benefit of using apex™ modules?
A: apex™ modules reduce pneumatic pressure for improved comfort and can be swapped (mX, m15, m20) to adjust isolation and tuning preferences.

Q: What is the faceplate made of?
A: Nio's faceplate is made from naturally sourced blue abalone shell, giving each unit a one-of-a-kind visual identity.

Q: Does Nio work well with different devices?
A: Yes, thanks to LID™ technology, Nio maintains a consistent frequency response even when paired with different DACs, amps, or smartphones.

Q: Are there tuning options included?
A: Yes, Nio includes three apex™ modules (m20, m15, mX) to adjust sound isolation and tonal balance to your liking.

Q: Is the cable replaceable?
A: Yes, Nio uses a standard 0.78mm 2-pin connector, allowing you to upgrade or swap cables easily.

Q: What accessories come with the Nio?
A: Included are a premium leather case, full tip kit (foam, silicone, SpinFit), apex™ modules, premium cable, and cleaning accessories.