The Truthear x Crinacle Zero: Blue 2 is a next-generation dual dynamic driver in-ear monitor designed for audiophiles and everyday listeners seeking high-quality sound at an affordable price.

Equipped with a 10mm dynamic driver for bass and a 7.8mm dynamic driver for mids and highs, the Blue 2 delivers a well-balanced and powerful audio experience. The upgraded driver system improves efficiency and clarity, resulting in deeper bass, smoother mids, and extended high frequencies.

Tuned close to the Harman target curve, the sound signature offers an engaging listening experience with enhanced low-end punch and crisp detail, making it ideal for music, gaming, and content creation.

Built using advanced 3D-printed resin shells, the Blue 2 is lightweight, comfortable, and durable for long listening sessions. It also includes a detachable 2-pin cable, allowing for easy upgrades and extended lifespan.

Whether you're a beginner audiophile or upgrading your setup, the Zero: Blue 2 offers exceptional performance and value in its class.

Full Specifications

General

• Model: Zero: Blue 2
• Type: In-ear monitor (IEM)
• Driver Configuration: Dual Dynamic Drivers (1DD + 1DD)

Drivers

• Low Frequency Driver: 10mm dynamic driver (bass)
• Mid/High Driver: 7.8mm dynamic driver

Audio Performance

• Frequency Response: 20Hz – 20kHz (effective range)
• Extended Range: Up to ~41kHz
• Sensitivity: ~119.5dB
• Impedance: ~5.8Ω
• THD: <0.3% @1kHz

Build & Design

• Material: 3D-printed resin shell
• Design: Ergonomic in-ear fit
• Cable: Detachable 0.78mm 2-pin
• Cable Type: Copper + silver-plated coaxial cable
• Plug: 3.5mm

Features

• Dual dynamic driver system
• Harman-tuned sound signature
• Wide soundstage & strong bass response
• Low distortion crossover design
• Optional microphone cable

What’s in the Box

• Zero: Blue 2 IEMs
• Detachable cable
• Multiple ear tips (silicone + foam)
• 5Ω impedance adapter
• Carry case

Weight

• Not officially specified
• Typically ~20–30g (lightweight IEM design)