KZ Castor Tuning Adjustable Dual Driver IEM Earphones

The KZ Castor Tuning Adjustable Dual Driver IEM Earphones deliver premium audio with a distinctive dual-driver design and hardware-based tuning switches. This innovative in-ear monitor (IEM) features two dynamic drivers per earpiece— a 10mm dual magnetic driver and an 8mm dynamic driver in a stacked cavity structure—allowing precise sound reproduction with rich bass, clear mids, and sparkling highs. The adjustable tuning switch lets users customize audio profiles with 16 unique sound settings, ranging from enhanced bass to balanced clarity, making it ideal for audiophiles, musicians, and gamers seeking personalized listening experiences.

Constructed from medical-grade resin and housed in a transparent shell, the Castor offers durability, comfort, and passive noise isolation up to 26dB. Silver-plated oxygen-free copper cables with gold-plated 0.75mm 2-pin connectors add connectivity quality. This IEM supports a wide frequency range from 20Hz to 40kHz and impedance variants for easy use with mobile devices and professional equipment. Its ergonomic fit and tuning flexibility make it suitable for long use during music listening, studio monitoring, and gaming.

Key Features

• Dual drivers per earpiece: 10mm dual magnetic + 8mm dynamic driver for a full-range sound

• Hardware switch with 16 customizable tuning modes for bass and treble adjustment

• Frequency response: 20Hz to 40,000Hz (Hi-Res certified range)

• Impedance options: 18Ω (mobile-friendly) or 31-35Ω (Harman Target Version)

• Sensitivity: 103-112dB (depending on tuning mode)

• Detachable 0.75mm 2-pin silver-plated OFC cable, approx. 1.2m length

• Passive noise isolation up to 26dB with ergonomic silicone ear tips and ear-hooks

• Transparent resin housing and ergonomic over-ear design for comfort and durability

What You Get

• KZ Castor Dual Driver IEM earphones

• Detachable 0.75mm 2-pin cable (silver-plated OFC)

• Multiple silicone ear tips in various sizes

• User manual

Perfect For

• Audiophiles seeking customizable sound profiles and high fidelity

• Musicians and audio professionals for studio monitoring

• Gamers looking for clear, balanced, and immersive sound

• Users preferring ergonomic, long-wear IEMs with noise isolation

• Fans of deep bass and detailed treble with tuning flexibility