Product Information
The AlphaTheta HDJ-F9 Professional Wireless DJ Headphones in Black deliver exceptional sound quality, ultra-low-latency wireless monitoring and outstanding comfort for professional DJ performances. Featuring AlphaTheta's innovative SonicLink wireless technology, the HDJ-F9 provides responsive audio monitoring with latency as low as 9 milliseconds, allowing DJs to mix, cue and scratch without the restrictions of traditional headphone cables. Combining powerful 40 mm drivers, excellent sound isolation and a flexible on-ear design, these headphones are engineered for demanding club environments, live performances and everyday listening.
At the heart of the HDJ-F9 is a newly developed 40 mm driver featuring a PEEK-PU-PEEK composite diaphragm, designed to deliver deep, defined bass and balanced mid-to-high frequencies with minimal distortion. An integrated bass-reflex chamber enhances low-frequency response, reproducing punchy kick drums and detailed basslines with exceptional clarity. The optimised acoustic structure also provides excellent passive sound isolation, helping DJs monitor accurately in loud environments without needing excessive volume.
SonicLink wireless connectivity delivers ultra-low-latency monitoring over distances of up to approximately 15 metres in unobstructed conditions. SonicLink Touch Pairing enables instant connection with compatible DJ equipment, including the AlphaTheta DJM-V5, while the optional HP-TX01 transmitter allows SonicLink connectivity with other audio equipment. Bluetooth 5.3 connectivity provides additional flexibility for everyday listening, with multipoint pairing allowing simultaneous connections to two compatible devices. Google Fast Pair and Windows Swift Pair make connecting to supported devices quick and convenient.
Designed for professional performance, the HDJ-F9 features swivel-mounted earcups, a flexible silicone headband and a durable die-cast aluminium slider. This construction supports comfortable single-ear monitoring, conventional two-ear listening and resting the headphones around the neck. A secure bayonet-locking cable connection prevents accidental disconnection during wired use, while the included coiled cable provides a reliable alternative to wireless operation.
The built-in rechargeable battery delivers up to 9 hours of SonicLink playback or up to 25 hours of Bluetooth listening with the status LED switched off. A full charge takes approximately 2.5 hours, while a 30-minute charge provides around 2.5 hours of SonicLink playback. The dedicated HEADPHONES CONNECT app provides additional personalisation, including adjustable status LED colours and brightness, automatic power-off settings and a Find My Headphones function. Combining professional sound, flexible connectivity and robust construction, the AlphaTheta HDJ-F9 is an advanced monitoring solution for DJs who demand freedom of movement without compromising performance.
Features
- Professional on-ear wireless DJ headphones in Black, designed for live performance, DJ monitoring and everyday listening
- AlphaTheta SonicLink ultra-low-latency wireless technology delivers responsive monitoring with latency as low as 9 ms
- SonicLink wireless transmission range of approximately 15 metres in unobstructed conditions
- SonicLink Touch Pairing enables quick connection with compatible DJ equipment, including the AlphaTheta DJM-V5
- Compatible with the optional AlphaTheta HP-TX01 SonicLink transmitter for connection to other audio equipment
- Newly developed 40 mm dynamic drivers deliver powerful bass, clear midrange and detailed high frequencies
- PEEK-PU-PEEK composite diaphragms suppress unwanted vibration for balanced sound reproduction with minimal distortion
- Integrated bass-reflex chambers enhance low-frequency response and deliver punchy, well-defined kick drums
- Optimised closed-back acoustic design provides excellent passive sound isolation for monitoring in loud DJ booths
- Bluetooth 5.3 connectivity supports wireless music playback and hands-free calling
- Multipoint Bluetooth pairing allows simultaneous connection to two compatible devices
- Supports SBC and AAC Bluetooth audio codecs
- Google Fast Pair and Windows Swift Pair provide convenient pairing with compatible devices
- Swivel-mounted earcups and flexible headband support comfortable single-ear and two-ear monitoring
- Durable die-cast aluminium slider provides long-lasting reliability for professional use
- Flexible silicone head cushion and polyurethane ear pads provide a comfortable fit
- Secure bayonet-locking cable connection helps prevent accidental disconnection during wired monitoring
- Up to 9 hours of SonicLink playback with the status LED switched off
- Up to 25 hours of Bluetooth playback with the status LED switched off
- Approximately 2.5-hour charging time, with a 30-minute charge providing around 2.5 hours of SonicLink playback
- HEADPHONES CONNECT app supports status LED customisation, automatic power-off settings and Find My Headphones functionality
- Built-in omnidirectional microphone supports hands-free calls
- Includes a 1.2-metre coiled cable extendable to approximately 3 metres, a 6.3 mm stereo adaptor, USB-C charging cable and carrying pouch
- Lightweight 285 g construction for comfortable extended listening sessions
Specifications
General
- Brand: AlphaTheta
- Model: HDJ-F9
- Product Type: Professional Wireless DJ Headphones
- Colour: Black
- Headphone Style: On-Ear
- Acoustic Design: Closed-Back, Dynamic
- Connectivity: SonicLink Wireless, Bluetooth and Wired
- Weight: 285 g (10.06 oz), Excluding Cable
- Manufacturer Warranty: 2 Years
Headphones
- Headphone Type: Closed, Dynamic
- Driver Units: 40 mm (1.57") Dome-Type
- Driver Diaphragm: PEEK-PU-PEEK Composite Film
- Frequency Response: 5 Hz – 30,000 Hz
- Impedance: 32 Ohms
- Sensitivity: 106 dB
- Acoustic Chamber: Bass-Reflex Chamber
- Sound Isolation: Optimised Passive Sound Insulation
- Wired Connection: 3.5 mm Stereo Mini Plug
- Cable Locking Mechanism: Bayonet Lock
SonicLink Wireless
- Wireless Technology: AlphaTheta SonicLink
- Wireless Latency: As Low as 9 ms
- Maximum Transmission Distance: Approximately 15 m (49.2 ft), Unobstructed
- Operating Frequency Band: 2.4 GHz
- Touch Pairing: Supported with Compatible SonicLink Equipment
- Compatible DJ Equipment Example: AlphaTheta DJM-V5
- Optional Wireless Transmitter: AlphaTheta HP-TX01, Sold Separately
- Playback Time with Status LED Off: Approximately 9 Hours
- Playback Time with Status LED On: Approximately 7 Hours
Bluetooth
- Bluetooth Version: Bluetooth 5.3
- Maximum Transmission Distance: Approximately 10 m (32.8 ft), Unobstructed
- Operating Frequency Band: 2.4 GHz
- Supported Bluetooth Profiles: A2DP, AVRCP, HSP, HFP
- Supported Audio Codecs: SBC, AAC
- Multipoint Connectivity: Supports Simultaneous Connection to 2 Devices
- Pairing Methods: Google Fast Pair and Windows Swift Pair
- Playback Time with Status LED Off: Approximately 25 Hours
- Playback Time with Status LED On: Approximately 13 Hours
NFC
- Supported Standard: ISO/IEC 15693 (Tag)
- Application: SonicLink Touch Pairing with Compatible Equipment
Microphone
- Microphone Type: Electret Condenser
- Polar Pattern: Omnidirectional
- Frequency Band: 100 Hz – 4,000 Hz
- Application: Hands-Free Calling
Battery & Power
- Battery Type: Built-In Rechargeable Lithium Polymer Battery
- Battery Voltage: DC 3.7 V
- Charging Power: DC 5 V
- Full Charging Time: Approximately 2.5 Hours at 25°C
- Quick Charging: 30-Minute Charge Provides Approximately 2.5 Hours of SonicLink Playback
- Recommended Charging Temperature: +10°C to +35°C (+50°F to +95°F)
- Operating Temperature: 0°C to +40°C (+32°F to +104°F)
- Operating Humidity: 35% RH – 80% RH, Non-Condensing
- Charging Connection: USB Type-C
Construction & Comfort
- Headband Cushion: Silicone
- Ear Pad Material: Polyurethane, Leather-Style Finish
- Slider Construction: Die-Cast Aluminium
- Earcup Mechanism: Swivel-Mounted
- Headband Design: Flexible
- Monitoring Styles: Single-Ear and Two-Ear
- Cable Connection: Secure Bayonet-Locking Mechanism
App & Smart Features
- Companion App: AlphaTheta HEADPHONES CONNECT
- Status LED Customisation: Adjustable Colour and Brightness
- Status LED Disable Function: Supported
- Headphone Renaming: Supported
- Automatic Power-Off Configuration: Supported
- Find My Headphones: Supported via App
- Audible Headphone Location: Supported
- Voice Assistant Button Configuration: Siri and Google Assistant
- Firmware Updates: Supported via App
Included Accessories
- Coiled Audio Cable: 1 x 1.2 m (Approximately 3.0 m Extended), with L-Shaped Plug
- Stereo Plug Adaptor: 1 x 6.3 mm (1/4") Screw-Type Adaptor
- USB Charging Cable: 1 x USB Type-C to USB Type-C, 0.5 m
- Carrying Pouch: 1
- Quick Start Guide: Included
- Precautions for Use: Included
Optional Accessories
- SonicLink Transmitter: AlphaTheta HP-TX01, Sold Separately
Warranty
1 Year WarrantyName:
Invoice/Order Number:
Item:
Fault Description:
Serial Number:
Email:
Contact Number:
Address:
Shipping Policy
All orders over $200 will be automatically eligible for FREE Shipping Australia Wide, if you order is under $200 there will be a flat rate of $12.
Belfield Music is well known for its top online customer service. We treat all online customers with the same excellent service we give to our in store customer. We will ensure that you receive all the support you need while your goods are in transit and ensure the goods arrive promptly. All of our shipments have tracking numbers available and we cover every single unit by our own shipping insurance.
Online orders are normally processed within 1-3 business days. Once processed, your order should take between 1-8 business days to arrive depending on your location. Please note that your order may take up to 10 business days to arrive from the day you place your order.
If it transpires that the product is out of stock due to a stock discrepancy and/or there will be a delay in shipment, we will contact you within 2 business days of placing your order and give you the option of waiting or cancelling your order. The products we advertise online should show if they are in stock or not. We do our best to keep the website stock count up to date, but there may be an occasional error.
If you wish to utilize an Express Delivery Service to receive your item, please contact us for a shipping quote before you place your order at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.
Deliver is made during the hours from 8:00am till 5:30pm Monday to Friday. As such, please ensure you nominate an address which is capable of receiving goods during 8am and 5.30pm. Given the restrictions on PO Box deliveries we cannot deliver larger sized items to a PO Box.
If for any reason our selected carriers don't service your area we will contact you before processing your order if this applys to you.
Returns Policy
If you wish to return an item which is not damaged or faulty in any way and you have simply changed your mind or made the wrong decision, you must let us know within 7 days of receiving the item. We will not agree to refund an item because you simply changed your mind or made the wrong decision if we have not been advised of your intention within 7 days of receiving your item. Once we have provided a return authority, it is the buyer’s responsibility to return the item, at their own costs within 30 days from original purchase. If the item is returned with any damage or alteration to its original packaging, we will refund the item subject to applying a minimum 15% restocking fee. We will not refund the costs of the initial shipping charges.
It is in Belfield Music best interests to keep our customers happy with their purchases. If you are not happy with your purchase, please talk to us first. We will always attempt to resolve any problems you may have as best we can. To contact us please email us at admin@belfieldmusic.com.au or by using the Chat icon on the bottom right of the page.
