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AI-UNIT4HIDDEN

AIAIAI UNIT-4 Wireless+ Studio Monitor (Single) - Hidden Limited Edition

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Product Information

UNIT-4 Hidden Edition is a portable speaker with studio grade sound, powerful performance and accurate sound representation. Battery-powered and wireless audio provide a cable-free and seamless experience wherever you create or listen.

Designed for reference monitor performance on the go, UNIT-4 delivers precise, neutral sound with extended low end, while its rugged, lightweight build and long battery life make it ideal for mobile setups, studios, and stages alike.

Key Features

  • Tagline: Portable speaker with studio grade sound.
  • Battery & portability: Portable speakers with 20 hours of battery life, robust design and lightweight build.
  • Reference monitor sound: Experience reference monitor performance wherever you are, with precise and neutral sound representation and bass extension down to 40Hz, tuned for music creation and critical listening.
  • Cable-free setup: Seamless, cable-free setup with ultra-low latency and uncompressed wireless audio so you can quickly reposition and stay in the sweet spot.

Specifications

Features Expanded

  • Complete wireless freedom: Battery powered with 20+ hours of playback time and complete wireless freedom from both audio and power cables.
  • Reference monitor performance: 2-way active monitor featuring a 4-inch high-excursion woofer and 1-inch silk-dome tweeter with precision tonal accuracy over a flat ±2dB frequency response from 50Hz to 20kHz.
  • Bass tuning: Bass vent and boosting EQ tuned to provide clean bass extension down to 40Hz.
  • Sound shaping: Shape UNIT-4’s sound to your environment or preference using the AIAIAI app with a customizable 5-band EQ.
  • Portable, compact & rugged: Compact 3-litre size and 2.5kg weight for easy transport.
  • Integrated handle: Rear bass vent designed to double as a comfortable carrying handle.
  • Driver protection: Removable steel grille provides sturdy protection for the woofer and tweeter.
  • Connectivity: Bluetooth 5.2 for wireless listening plus 3.5mm mini-jack and 6.3mm balanced TRS inputs for cabled connections.
  • Responsible design: Main components produced from 100% recycled plastics from post-consumer sources.
  • Serviceability: Designed for disassembly with a glue-free design so the whole speaker can be taken apart using two screwdrivers.
  • Replaceable parts: Replace worn components including battery and drive units.
  • Future-proof electronics: Upgradeable wireless electronics to support new technologies over time.

Technical Specifications

  • Frequency range: 40Hz to 40kHz, -10dB
  • Frequency response: 50Hz – 20kHz ±2dB
  • Bluetooth codec support: SBC, AAC
  • Bluetooth version: 5.2
  • Bluetooth profiles: A2DP 1.3, AVRCP 1.6
  • Charging time: 3 hours
  • Peak SPL: 99 dB SPL
  • Self-generated noise: <20dB
  • Total harmonic distortion (THD): <1% nominal, <10% at peak output
  • Power supply: USB-C
  • Playback time on battery: 20 hours
  • Battery capacity: 77 Wh
  • Enclosure type: 2-way bass reflex
  • Woofer: 4-inch high-excursion paper cone
  • Tweeter: 1-inch silk dome
  • Amplifier power: 2 × 30W continuous, 2 × 80W peak
  • DSP processing: Loudness adaptive bass boost
  • Crossover frequency: 3 kHz
  • EQ adjustment: 5-band adjustable EQ via AIAIAI app
  • Analog inputs: 3.5mm mini-jack stereo and 6.3mm TRS balanced mono
  • Grille material: Steel

Packaging

  • In the box: UNIT-4 Wireless+ (1 pcs), UNIT-4 Power Supply (1 pcs), UNIT-4 Protective Pouch (1 pcs).
  • Packaging weight: 4300 g
  • Packaging width: 188.5 mm
  • Packaging height: 357 mm
  • Packaging depth: 205 mm
  • Product weight: 3062 g
  • Product width: 156 mm
  • Product height: 258 mm
  • Product depth: 114 mm

Warranty

1 Year Warranty
Warranty & Support 

All products are backed by the original manufacturer’s warranty, giving you confidence that your purchase is protected. If you ever need to make a claim, the process is simple — just email us at warranty@belfieldmusic.com.au with the following info:

Name:
Invoice/Order Number:
Item:
Fault Description:
Serial Number:
Email:
Contact Number:
Address:
 
Our team will guide you through the next steps and arrange a repair, replacement, or refund where applicable. We aim to make the process quick and stress-free, so you can get back to enjoying your gear as soon as possible. 

 

Shipping Policy

All orders over $150 will be automatically eligible for FREE Shipping Australia Wide, if you order is under $150 there will be a flat rate of $10.

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.

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