Marantz MODEL M4, 8-Channel / 4-Zone HEOS® - Enabled Amplifier
Experience Powerful Multi-Room Audio with the Marantz MODEL M4.
The Marantz MODEL M4 is a high-performance 8-channel, 4-zone distribution amplifier designed for seamless multi-room audio integration.
Perfect for residential installations, custom AV setups, and premium distributed sound systems, it delivers the signature Marantz musicality across up to four independent listening zones.
Engineered with HEOS® Built-in, the MODEL M4 allows you to stream music from leading services such as TIDAL, Amazon Music HD, and Spotify to different rooms — or group them together for whole-home playback. With 8 x 100W of power (into 8 ohms) and Bridge Mode for up to 4 x 200W, this amplifier can easily drive a variety of speaker setups while maintaining outstanding sound quality.
Connectivity is highly flexible, with four stereo RCA inputs, two optical inputs, and four USB-A ports, plus stereo pre-outs and dedicated subwoofer outputs per zone. High and low-pass filters, Marantz Musical Digital Filtering (MMDF), and TV Sound Grouping ensure optimal sound quality and integration for every application. Built for installers, the MODEL M4 comes rack-mount ready with active cooling for reliable operation in any custom AV environment.
Marantz MODEL M4 Key Features:
- Multi-Zone Power: 8 x 100W of high-quality Marantz amplification across four zones.
- Bridge Mode: Delivers up to 4 x 200W for higher-output applications.
- HEOS® Built-in: Stream music to individual zones or group them for whole-home playback.
- Flexible Connectivity: 4 x RCA stereo inputs, 2 x optical inputs, 4 x USB-A ports, plus Ethernet networking.
- Advanced Filtering: High and low-pass filters with adjustable crossover points for optimal performance.
- Dolby Digital Decoding: Enjoy TV audio with superior clarity via optical inputs.
- Rack-Mount Ready: Standard 2U rack height with included kit and active cooling for reliable installations.
- Integrator-Friendly: 12V trigger outputs per zone and TCP/IP control compatibility with Crestron, Control4, and AMX.
- High-Resolution Audio Support: Plays FLAC, ALAC, WAV (24/192), and DSD (2.8 & 5.6 MHz) for true hi-fi sound.
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.
