NEW AlphaTheta HDJ-F9 Pro DJ Headphones

AlphaTheta HDJ-F9 Pro DJ Headphones

Are you looking for versatile DJ headphones that combine wireless audio playback, professional sound quality, and exceptional comfort? The AlphaTheta HDJ-F9 Pro DJ Headphones are closed-back, dynamic headphones featuring Bluetooth 5.3, SonicLink wireless technology, and 40-mm drivers. With an extended frequency range of 5 Hz to 30 kHz, a built-in microphone, and various connectivity options, they’re suitable for a wide range of DJing and music playback applications.

The AlphaTheta HDJ-F9 Pro DJ Headphones combine wireless flexibility with the option of a wired connection via a 3.5-mm stereo jack. A built-in rechargeable battery enables long playback times, while the closed-back design and padded construction are designed for comfortable use.

AlphaTheta – Headphone Technology for DJs

AlphaTheta develops products and technologies for the DJ industry. With the HDJ-F9 Pro DJ Headphones, the manufacturer offers a model that combines various audio transmission options in a single pair of headphones.

The focus is on the two wireless modes—Bluetooth and SonicLink—as well as wired use. This allows the headphones to be used in a variety of playback situations. The extensive technical features are designed for users who value flexible connectivity options and convenient operation in addition to sound quality.

Bluetooth 5.3 and SonicLink Wireless Technology

The AlphaTheta HDJ-F9 Pro DJ headphones support Bluetooth 5.3 and SonicLink wireless technology. Both connection types operate in the 2.4 GHz frequency range but have different specified ranges and battery life.

In Bluetooth mode, the maximum transmission distance under unobstructed conditions is approximately 10 meters. With SonicLink, ranges of about 15 meters are specified under appropriate conditions. The actual distance may vary depending on the connected device and the respective environmental conditions.

For Bluetooth audio playback, the headphones support the SBC and AAC codecs as well as the A2DP, AVRCP, HSP, and HFP profiles. This means they meet the technical requirements for music playback and corresponding voice functions with compatible devices.

Easy pairing with Google Fast Pair and Windows Swift Pair

For a hassle-free Bluetooth connection, the AlphaTheta HDJ-F9 Pro DJ headphones support Google Fast Pair and Windows Swift Pair. These methods simplify pairing with compatible devices.

Especially when the headphones are used regularly with different playback devices, simplified pairing can enhance ease of use. As a result, the HDJ-F9 is suitable not only for music applications but also for general audio playback via compatible Bluetooth devices.

40-mm drivers and closed-back design

For sound reproduction, the AlphaTheta HDJ-F9 Pro DJ Headphones are equipped with dynamic 40-mm drivers. According to the manufacturer, the frequency range extends from 5 Hz to 30,000 Hz. Sensitivity is 106 dB at an impedance of 32 ohms.

The closed-back design is particularly useful for applications where sound should be delivered as directly as possible to the ear. In DJing, personal monitoring plays an important role, for example, in checking music signals or preparing transitions.

A 3.5-mm stereo jack is provided for wired connection. This gives the headphones an additional connection option in addition to wireless transmission.

Up to 25 hours of battery life in Bluetooth mode

The AlphaTheta HDJ-F9 Pro DJ Headphones feature a built-in lithium-polymer battery. The possible playback time depends on the selected wireless mode and the operating status of the status LED.

In Bluetooth mode, the specified battery life is approximately 25 hours when the status LED is off. When the LED is on, the playback time is reduced to about 13 hours.

In SonicLink mode, approximately 9 hours of playback are possible with the status LED turned off. When the LED is on, the specified runtime is about 7 hours.

These figures are for guidance only. Actual playback time may be affected by factors such as the volume setting, the audio content being played, and operating conditions.

Built-in battery with fast charging

The AlphaTheta HDJ-F9 Pro DJ headphones are powered by a built-in rechargeable lithium-polymer battery with a nominal voltage of 3.7 V. A DC voltage of 5 V is used during charging.

The full charging time is approximately 2.5 hours at an ambient temperature of 25 °C. The recommended temperature range during charging is between 10 and 35 °C.

This allows the headphones to be recharged within a few hours after being fully discharged. The actual charging time may vary depending on usage conditions.

Built-in microphone for voice functions

In addition to audio playback, the AlphaTheta HDJ-F9 Pro DJ headphones feature a built-in omnidirectional electret condenser microphone.

The microphone picks up sound from various directions and has a specified operating frequency range of 100 Hz to 4,000 Hz. Together with the supported Bluetooth profiles HSP and HFP, this enables corresponding voice functions when used with compatible devices.

Additionally, the headphones feature an NFC tag that supports the ISO/IEC 15693 standard.

Comfortable fit thanks to silicone and faux leather padding

The AlphaTheta HDJ-F9 Pro DJ headphones are equipped with a silicone headband and polyurethane ear pads with a leather-like finish. This combination of materials is designed to ensure a comfortable fit during use.

Weighing 285 g, the headphones remain relatively lightweight. A comfortable fit and personal comfort are especially important factors during longer music sessions or when regularly switching between different listening situations.

Purchase Recommendation

The AlphaTheta HDJ-F9 Pro DJ Headphones are ideal for DJs and music enthusiasts looking for closed-back headphones with a variety of connectivity options. In particular, Bluetooth 5.3, SonicLink, the 40-mm drivers, and the wired connection option make this model highly versatile.

The long battery life in Bluetooth mode, support for Google Fast Pair and Windows Swift Pair, and the built-in microphone also expand the headphone’s uses beyond mere DJ monitoring.

If you’re looking for wireless DJ headphones with comprehensive technical features, multiple operating modes, and comfortable padding, the AlphaTheta HDJ-F9 Pro DJ Headphones offer an appealing combination for DJing and music playback.

Features:

• Professional DJ headphones with a closed-back, dynamic design
• Wireless audio playback via Bluetooth and SonicLink
• Wired connection option
• Support for Google Fast Pair and Windows Swift Pair
• Built-in microphone for voice functions
• Built-in NFC tag
• Rechargeable lithium-polymer battery
• Status LED
• Silicone headband
• Leather-look polyurethane ear pads

Technical Specifications:

• General:
  • Manufacturer: AlphaTheta
  • Model: HDJ-F9 Pro
  • Product type: DJ headphones
  • Weight: 285 g
• Headphone system:
  • Driver size: 40 mm
  • Impedance: 32 ohms
  • Sensitivity: 106 dB
  • Frequency response: 5 Hz – 30,000 Hz
  • Connector: 3.5-mm stereo mini-jack
• Bluetooth:
  • Version: 5.3
  • Frequency range: 2.4 GHz
  • Maximum range: approx. 10 m with a clear line of sight
  • Supported profiles: A2DP, AVRCP, HSP, HFP
  • Supported codecs: SBC, AAC
  • Playback time with status LED off: approx. 25 hours
  • Playback time with status LED on: approx. 13 hours
• SonicLink:
  • Frequency range: 2.4 GHz
  • Maximum range: approx. 15 m with unobstructed line of sight
  • Playback time with status LED off: approx. 9 hours
  • Playback time with status LED on: approx. 7 hours
• Microphone:
  • Type: Electret condenser microphone
  • Polar pattern: Omnidirectional
  • Frequency range: 100 Hz – 4,000 Hz
• NFC:
  • Supported standard: ISO/IEC 15693 (tag)
• Power supply and charging time:
  • Battery voltage: 3.7 V DC
  • Charging voltage: 5 V DC
  • Charging time: approx. 2.5 hours at 25 °C
  • Recommended charging temperature: 10–35 °C
• Operating conditions:
  • Permissible temperature range: 0–40 °C
  • Permissible relative humidity: 35–80%, non-condensing

Specs:

• Color: Black
• Headphone construction: closed-back
• Wearing method: supraaural
• Ear cup: non-foldable
• Impedance: 32 Ω
• Adapter: no
• cable type: wireless
• Cable routing: without
• Frequency Range from: 5 Hz
• Frequency Range to: 30000 Hz
• Type: DJ Headphones
• Theme: DJ Equipment

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