WiiM Sub Pro 250W 8" Active Wireless Subwoofer | Wi-Fi & Bluetooth
The WiiM Sub Pro is a 250W 8" Active Wireless Subwoofer delivering deep, distortion-free bass down to 25Hz - with AI RoomFit auto-calibration, Wi-Fi 6, Bluetooth 5.3 and seamless integration with the entire WiiM ecosystem.
The WiiM Sub Pro has been engineered to bring music, movies and games to life with incredible depth, power and precision. Driven by a 250W Class-D amplifier and a custom 8" high-excursion woofer capable of 104dB SPL, the Sub Pro delivers room-shaking bass down to 25Hz — reproducing cinematic explosions, driving basslines and deep electronic sub-frequencies with authority and control. Unlike subwoofers that sacrifice accuracy for sheer output, the Sub Pro keeps distortion firmly in check, ensuring your low-end always sounds tight, natural and impactful rather than boomy or bloated.
AI RoomFit Auto-Calibration
Every room interacts with bass frequencies differently, and the WiiM Sub Pro addresses this intelligently. AI RoomFit technology analyses your specific space with a single tap and automatically tailors the bass response to suit your room and system — no external microphone kits, no complex manual adjustment and no guesswork required. The result is a subwoofer that integrates seamlessly with your existing speakers and room acoustics straight out of the box.
True Wireless Flexibility
The Sub Pro has been designed to place wherever it sounds best, free from the constraints of wired connectivity. Wi-Fi 6 and Bluetooth 5.3 LE allow the subwoofer to be positioned anywhere near a power outlet, whilst an RCA mono input provides instant compatibility with any receiver, amplifier or soundbar that features a dedicated subwoofer output. An Ethernet port is also available for a wired network connection when preferred.
App-Driven Precision Control
]The free WiiM Home app puts comprehensive bass control at your fingertips. A 10-band parametric EQ, adjustable crossover frequency, phase control, level adjustment and latency correction give you the tools to perfectly integrate the Sub Pro with any speaker system — all from your smartphone or tablet. Regular over-the-air firmware updates ensure the Sub Pro continues to improve and evolve over time.
Seamless WiiM & Multi-Room Integration
The WiiM Sub Pro pairs wirelessly with the full range of WiiM streamers, amplifiers and speakers — including the WiiM Sound, WiiM Sound Lite, WiiM Amp Ultra and WiiM Amp Pro — for a complete, cohesive WiiM audio system. It can also join any WiiM multi-room group, filling every corner of your home with synchronised, cinema-grade bass. Please note that when using the Sub Pro in wireless mode, a temporary limitation may affect bass output during playback of Alexa Multi-Room Music, Roon Ready, LMS and Google Cast — WiiM's team are actively working on a resolution.
WiiM Sub Pro Key Features:
- 250W Class-D Amplification: Continuous RMS power delivery for deep, sustained bass performance without distortion or compression.
- 8" Custom High-Excursion Woofer: 104dB SPL driver engineered for room-filling, distortion-free bass down to 25Hz.
- AI RoomFit Auto-Calibration: One-tap automatic bass tuning analyses your room and optimises performance without the need for microphone kits or manual adjustment.
- Wi-Fi 6 & Bluetooth 5.3 LE: Next-generation wireless connectivity for flexible placement anywhere near a power outlet.
- RCA Mono Input: Instant wired compatibility with any receiver, amplifier or soundbar featuring a subwoofer output.
- Ethernet Input: Wired network connection option for maximum streaming stability.
- 10-Band Parametric EQ: Precise bass shaping via the WiiM Home app for seamless integration with any speaker system.
- Full Tuning Controls: Crossover frequency, phase, level and latency adjustment all available via the WiiM Home app.
- Seamless WiiM Ecosystem Integration: Pairs wirelessly with WiiM streamers, amplifiers and speakers for a complete, cohesive audio system.
- Multi-Room Compatible: Joins WiiM multi-room groups for synchronised bass throughout your home.
- OTA Firmware Updates: Regular over-the-air updates ensure ongoing improvements and new features.
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WiiM Home App: Full control and tuning via iOS, Android and PC.
What's included:
- WiiM Sub Pro
- User Guide
- Power Cable
- RCA Cable
Specifications:
View our shipping and delivery information below. All prices include VAT.
Important notice for non-UK orders: Any order being shipping outside of the UK will incur an import tax. See below for more information.
Cut-off Times
Orders must be placed before 3:30pm to guarantee same-day dispatch. Any orders placed after this time are not guaranteed to be shipped the same day, and are more likely to be shipped the next working day.
To guarantee Saturday Delivery, orders must ideally be placed before 2pm.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
Orders placed over the weekend or Friday after cut-off will be processed and shipped the following Monday (or Tuesday during bank holidays).
Mainland UK Delivery Charges
Note: Next-day services are classed as working days (Mon-Fri) and do not include weekends. Please choose Saturday delivery if you require the item over the weekend.
Please also note orders with a high number of boxes may be subject to an additional charge.
All delivery options will be available at the checkout stage. Please ensure you add a mobile number to your order for tracking information.
Offshore & International
We ship to Scottish Highlands, Islands, Ireland and the EU. Please see the table below for base prices. Please note that these prices are subject to change based on the number of boxes.
The following postcodes fall under 'Highlands & Islands', and are subject to the above rates/lead time.
- Scottish Highlands: FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40 (excluding PA38), PH19-26, PH30-41, PH49-50
- Scottish Islands: HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA38, PA41-49, PA60-78, PH42-44, ZE1-3
If a UK Mainland next-day service is selected at checkout, please be aware that it won't be sent on that service.
If you require a next-day service to Northern Ireland and the highlands, get in touch so we can assist further.
EU Import Tax
Any goods shipped outside of the UK, over a certain value, will incur an import tax. The cost and rate will depend on the country and the order value.
This is a legal requirement and MUST be paid prior to delivery in order to receive your goods. You will be contacted by the courier once the order is dispatched to pay the fee.
Failure to pay import tax when applicable will result in the order being shipped back to Audio Volt. Any returned goods sent back to us due to non-payment of import tax are NOT ELIGIBLE for a refund on the shipping charge.
You can obtain an import duty estimate here.
Delivery Notes
On delivery, you must inspect the goods carefully for damage as Audio Volt is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Audio Volt of such within three working days from the date of delivery.
60 Day Returns Policy
We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:
- Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product's return.
- Contact our Customer Services Team on 02476 369890 (or email info@audiovolt.co.uk). We will then send you an RMA number and a returns form, which needs to be completed and sent back with the returned item(s).
- If the order has been unpacked, re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.
- When returning an item, please obtain a proof of postage receipt from the courier.
Returned items must be mailed within 10 days of when the RMA number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.
Please note: our returns policy is quite straightforward, but there are a number of conditions that we ask our customers to comply with before applying:
- It is your responsibility to request a return. If you don't tell us you want to make a return, we don't know. Once you do tell us, we will do everything we can to action it.
- If you have not requested a return within 60 days of receiving an order, we will assume that you are intending to keep it, and we will not authorise a return.
- We always refund the payment according to how the original purchase was made and aim to do so within 72 hours of the return being received by us.
- Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.
- Delivery charges will not be refunded unless the delivered goods are faulty.
- Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.
- Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369890 if you believe your item has developed a fault.
Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Audio Volt to process the return quickly.
Any Questions?
If you have any questions about our returns policy, please telephone us on 02476 369890 or email us at info@audiovolt.co.uk.
We operate during office hours, Mon-Fri, 9am - 5pm, and are closed during the weekend.
