64 Audio Trio Universal Hybrid In-Ear Monitors
The 64 Audio Trio is a fully tubeless three-driver hybrid IEM designed for audiophiles who crave musicality and immersive detail without listener fatigue. With a dynamic driver for lows and mids, a balanced armature high-mid, and a tia™ high driver, Trio delivers a lush, natural tonality and a soundstage that feels expansive and lifelike. Featuring the complete tia system, internally integrated apex™ pressure relief, and patented LID™ technology, Trio adapts seamlessly to any playback source while maintaining its smooth, engaging signature. Machined from solid aluminum with a brushed aluminum faceplate, its ergonomic form is as refined as its sound.
Specifications
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Driver Configuration: 1 Dynamic Mid/Low, 1 High-Mid BA, 1 tia High BA
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Frequency Response: 5 Hz – 22 kHz
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Sensitivity: 104 dB/mW @ 1 kHz
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Impedance: 5.5 +0.5/-1.5 Ω (10 Hz – 20 kHz)
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Crossover: Integrated 3-Way Passive Crossover
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Isolation: -15 dB (Internal Apex™ Technology)
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Shell Material: Milled Aluminum with Brushed Aluminum Faceplate
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Color: Neutral Grey
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Cable: 3.5mm Black Premium Cable – Silver-Plated OCC Copper (7x7x4 Multi-Twist, 26 AWG, 0.23Ω)
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Included Accessories: Premium Leather Case, TrueFidelity Foam Tips (S/M/L), SpinFit Silicone Tips (S/M/L), Standard Silicone Tips (S/M/L), Cleaning Tool, Cable Clip, Round Sticker
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Technology: Full tia™ System, Internally Integrated apex™, LID™ Circuitry, FXC (Frequency eXtension Chamber)
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Fit: Universal
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Designed & Assembled: In the USA with globally sourced components
Expanded Key Features List
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Three-Driver Hybrid Design: Dynamic driver for lows/mids, high-mid BA, and tia high driver for a rich, full-spectrum experience.
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Complete tia™ System: Includes tia high driver, acoustic chambers, and single-bore design for transparent, open highs.
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Integrated Apex™ Venting: Built-in pressure relief improves comfort and realism with -15 dB passive isolation.
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LID™ Circuitry: Ensures consistent frequency response regardless of source impedance.
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FXC (Frequency eXtension Chamber): Enhances midrange clarity and driver control for lifelike vocals and instruments.
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Ergonomic Aluminum Shell: Milled for comfort, durability, and acoustic precision.
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Brushed Aluminum Faceplate: Elegant, understated design in a neutral grey finish.
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Black Premium Cable: Low-resistance silver-plated copper cable with 3.5mm termination for clean signal transfer.
Q&A Section
Q: What kind of sound does the Trio offer?
A: Trio offers a mildly warm, smooth, and immersive sound with rich detail, impactful bass, and open treble—perfect for extended listening sessions.
Q: How many drivers are used in the Trio?
A: Trio features three drivers: one dynamic driver for mids/lows, one balanced armature for high-mids, and one open tia driver for highs.
Q: What’s the advantage of a tubeless design?
A: The tubeless tia system eliminates internal sound tubes, reducing distortion and enhancing clarity, treble extension, and spatial imaging.
Q: How does apex™ benefit the listening experience?
A: Integrated apex™ relieves air pressure buildup in the ear canal, reducing fatigue and enhancing the soundstage without sacrificing isolation.
Q: Does the Trio sound consistent across different devices?
A: Yes, thanks to LID™ technology, Trio maintains its tuning across all sources, from smartphones to high-end amps.
Q: Is the Trio good for daily use?
A: Absolutely. Its ergonomic shell, fatigue-free tuning, and pressure relief design make it ideal for all-day enjoyment.
Q: What does the FXC system do?
A: FXC (Frequency eXtension Chamber) shapes the airflow around the dynamic driver to improve midrange accuracy and control.
Q: What’s included with the Trio?
A: The package includes the Trio IEMs, premium leather case, three types of ear tips, a premium cable, cleaning tool, cable clip, and sticker.
