AUDIOCULAR x KZ Castor Pro Dual Dynamic Driver IEM

AUDIOCULAR x KZ Castor Pro is a collaboration built around a shared goal: delivering powerful, customizable Hi-Fi sound at an accessible level. Combining KZ experience in high-performance in-ear monitors with AUDIOCULAR's focus on practical audio innovation, the Castor Pro is designed for listeners who want greater control over how their music sounds.

At its core is a dual 10mm dynamic driver configuration paired with an advanced electronic crossover system. The two-driver architecture allows the Castor Pro to reproduce deep, impactful low frequencies while maintaining natural vocals, detailed instrumentation and crisp highs. Bass remains powerful and controlled, the midrange stays rich and expressive, and the treble adds clarity and openness without taking attention away from the rest of the mix.

A major highlight is the four-level acoustic tuning switch system, which gives users direct control over the frequency response. Switch 1 boosts the low frequencies by one level, while Switches 1+2 provide a stronger bass enhancement. Switch 3 raises the mid-high frequencies, and Switches 3+4 offer a greater mid-high boost. Users can also activate all four switches for a fuller, more energetic overall presentation.

For digital listening, the Type-C variant incorporates the KT02H20P DAC chipset, allowing compatible smartphones, tablets and computers to send digital audio directly through the cable without requiring a separate 3.5mm adapter. The Type-C model also supports the My Audiocular app/platform, giving compatible users access to audio personalization features including EQ and PEQ controls.

The Castor Pro also features an upgraded silver-plated cable engineered for reliable signal transmission and everyday durability. An integrated HD in-line microphone provides convenient support for phone calls, online meetings, gaming communication and voice chats.

Its durable zinc alloy construction adds a premium feel while the ergonomic shell and soft silicone ear tips provide a secure and comfortable fit during extended listening sessions.

Available with 3.5mm and Type-C termination options, the AUDIOCULAR x KZ Castor Pro combines dual-driver performance, adjustable tuning, digital audio capability and everyday communication features in one versatile IEM.