AlphaTheta HDJ-F9 Headphones, Black

AlphaTheta HDJ-F9 - Professional Wireless DJ Headphones with SonicLink

The AlphaTheta HDJ-F9 is a professional on-ear DJ headphone that combines first-class sound, wireless freedom, and exceptional comfort. Thanks to innovative SonicLink technology with an extremely low latency of just 9 ms, these headphones are ideal for precise DJ monitoring, mixing, and scratching. Powerful 40-mm drivers deliver punchy bass, balanced mids, and clear highs-even in loud DJ environments.

Wireless Freedom and Precise Sound

With SonicLink Touch Pairing, the HDJ-F9 can be connected to compatible DJ devices such as the DJM-V5 with a simple touch. Additional devices can be connected via the separately available SonicLink transmitter HP-TX01. Furthermore, Bluetooth 5.3 with multipoint functionality enables simultaneous connection to two devices. The closed-back design provides effective noise isolation for focused monitoring.

Comfortable, Durable, and Customizable

The swivel ear cups, flexible silicone headband, and sturdy aluminum construction make the AlphaTheta HDJ-F9 a reliable companion for professional DJ performances. Various settings can be customized using the HEADPHONES CONNECT app. With up to 25 hours of Bluetooth battery life, the headphones also offer plenty of endurance for long sessions.

Highlights

• Professional wireless on-ear DJ headphones
• SonicLink technology with just 9 ms latency
• SonicLink Touch Pairing for compatible DJ devices
• Bluetooth 5.3 with multipoint connectivity
• 40-mm drivers with powerful bass and balanced sound
• Closed-back design with effective noise isolation
• Swivel ear cups for flexible DJ monitoring
• Up to 25 hours of battery life via Bluetooth
• Built-in microphone and app support
• Durable construction with aluminum components

Technical Specifications

• Design: Closed-back, dynamic, on-ear
• Driver: 40 mm
• Frequency response: 5 Hz - 30 kHz
• Impedance: 32 ohms
• Sound pressure level: 106 dB
• Bluetooth version: 5.3
• Bluetooth codecs: SBC, AAC
• SonicLink range: approx. 15 m
• Bluetooth range: approx. 10 m
• SonicLink battery life: up to 9 hours
• Bluetooth battery life: up to 25 hours
• Charging time: approx. 2.5 hours
• Weight: 285 g (without cable)

Package Contents

• AlphaTheta HDJ-F9 DJ headphones
• 1.2 m coiled cable (extends to approx. 3 m)
• 6.3-mm stereo jack adapter (screw-on adapter)
• USB-C charging cable (0.5 m)
• Carrying pouch
• Quick Start Guide and Safety Instructions