









Description
Monitor Audio Radius On-Wall 4G
No space for large speakers? - The Monitor Audio Radius On-Wall 4G delivers Hi-Fi and home cinema sound flat against the wall – with three drivers in a cabinet hardly wider than a picture frame. Wall mounting is possible horizontally or vertically – suitable for any room.
What makes the Monitor Audio Radius On-Wall 4G special:
- Extremely flat cabinet – Only 7.8 centimetres deep
- 25 mm C-CAM Gold Tweeter - Natural and clear, precise high-frequency range
- 2x 4.5"/115 mm C-CAM RST III Bass/Midrange Drivers - Punchy, distortion-free bass and realistic voice reproduction
- Discreet and space-saving – Mounts directly to the wall with integrated wall bracket; horizontally or vertically
- Available in two colour variants - High-gloss black & Silk matte white to choose from
Flat cabinet, big sound - Punchy bass, silky voices and precise highs
The Monitor Audio Radius On-Wall 4G is the perfect choice for anyone looking for a true Hi-Fi and home cinema speaker but who actually has no space for it.
Once mounted on the wall with the integrated wall bracket (you have the choice between horizontal and vertical wall mounting), the Radius On-Wall 4G impresses with punchy bass, balanced, realistic voice reproduction, and a precise, transparent high-frequency range in stereo and home cinema use.
It only gets better with a subwoofer from the Monitor Audio Vestra or Anthra series, which complements and rounds off the Radius On-Wall 4G in the bass range with its lower frequency limit of 69 Hertz (at -6 dB).
Completely revised C-CAM Gold Tweeter and RST III Diaphragm - Perfectly matched to the new Radius 4G series
The Radius 4G series features the new C-CAM (Ceramic-Coated Aluminium/Magnesium) Gold Tweeter with improved ventilation and cooling, ensuring the high-frequency range remains clean and precise even at high volumes.
In the bass and midrange, the new RST (Rigid Surface Technology) III diaphragm works with a new, even stiffer centring spider for greater precision and an optimised surround for an even more harmonious sound and less distortion across all frequencies.
Technically uncomplicated, acoustically a highlight - The Radius On-Wall 4G is a true team player
With a minimum impedance of 4.4 ohms, the Radius On-Wall 4G is an uncomplicated partner for practically any amplifier, and its high efficiency of 90 decibels underscores this once again. It already shows its strengths with amplifiers from 75 watts of power per channel, but 100 watts or more are recommended to fully utilise its potential.
The Radius On-Wall 4G also works well "alone", but for an extra portion of depth and pressure in the bass, a 10" subwoofer like the Monitor Audio Vestra W10 is recommended for room sizes of about 20 square metres; for up to 30 square metres, the Vestra W12 is suitable. And those with an even larger living room (or who want maximum volume and depth in the bass) can combine the Radius On-Wall 4G with a subwoofer of the calibre of the Vestra W15.
Reasons to choose the Monitor Audio Radius On-Wall 4G:
- Ultra-flat housing – At 7.8 centimetres deep, barely larger than a picture frame
- Integrated wall bracket – Simply unpack and mount horizontally or vertically on the wall
- Sealed enclosure - No bass reflex port to consider when positioning or mounting
- High-quality finish - With paint in high-gloss black and silk matte white
Things you should know about the Monitor Audio Radius On-Wall 4G:
- Limited bass depth – A subwoofer is recommended for maximum bass potential (lower frequency limit Radius On-Wall 4G: 69 Hertz at -6 dB)
- Not suitable for free-standing placement; must be wall-mounted
The Monitor Audio Radius On-Wall 4G is perfect for:
- Living spaces where speakers can be wall-mounted
- Smaller living rooms up to approx. 30 square metres
- Stereo and home cinema fans who want to listen in smaller rooms (~20 square metres) or are willing to place a subwoofer in the living room
- Amplifiers with 75 watts or more continuous power at four ohms
- Design-oriented listeners who value an elegant cabinet in addition to vibrant sound
- As a complement to speakers from the Monitor Audio Bronze and Silver series, as well as Monitor Audio Creator speakers, for example as ultra-compact surround speakers in a home cinema
The Monitor Audio Radius On-Wall 4G is less suitable for:
- Large rooms well over 30 square metres
- Small amplifiers with power below 75 watts RMS per channel
Frequently Asked Questions and Answers about the Monitor Audio Radius On-Wall 4G
Which amplifier do I need for the Monitor Audio Radius On-Wall 4G?
For an optimal sound experience, the stereo amplifier or AV receiver should deliver 75 watts or more per channel. Beyond that, the Radius On-Wall 4G works with practically any amplifier.
What is the best way to set up the Monitor Audio Radius On-Wall 4G?
The Radius On-Wall 4G is designed as a wall speaker and must therefore be mounted exactly there. Due to its sealed enclosure, positioning is uncomplicated, as no consideration needs to be given to a bass reflex port.
With which other speakers can the Monitor Audio Radius On-Wall 4G be combined?
Acoustically, the Radius 4G series, due to the great similarities in the drivers, is suitable for both the speakers from the Monitor Audio Bronze and Silver series, as well as the Monitor Audio Creator speakers of levels 1 and 2.
Which speaker cable is suitable? What is recommended?
The Radius On-Wall 4G has high-quality screw terminals and accepts speaker cables up to a maximum of 4 mm² or banana plugs. For typical living room lengths (<10 metres), a high-quality speaker cable made of OFC copper is absolutely sufficient; for longer distances, it is worth using 4 mm².
What official accessories are available for the Monitor Audio Radius On-Wall 4G?
No further accessories are required for the Radius On-Wall 4G, as it is wall-mounted and the wall bracket is integrated directly into the housing. The only thing still needed is suitable mounting material (dowels and screws).
In what colours is the Monitor Audio Radius On-Wall 4G available?
The speaker is available in high-gloss black and silk matte white.
What is the warranty period for the Monitor Audio Radius On-Wall 4G?
Monitor Audio offers an extended five-year warranty on the Radius 4G series.
What are the differences between the Monitor Audio Radius 1 4G, Radius On-Wall 4G, and Radius 3 4G?
The Radius 1 4G is the ultra-compact speaker from the series and has been developed with a focus on maximum flexibility, but requires a subwoofer for a full sound to convince in the bass range.
The Radius 3 4G also works as a "stand-alone speaker", meaning it sounds complete even without a subwoofer, but certainly benefits from a subwoofer in terms of bass depth.
The Radius On-Wall 4G is the largest speaker in the Radius 4G series and is consistently designed for wall mounting (possible horizontally and vertically). For this, it also has the best efficiency and highest sound pressure level with its dual bass/midrange drivers and single tweeter.
Properties
Specifications
General
- Product Type: 2-way wall speaker
- Dimensions W × H × D: 15.4 × 75.0 × 7.8 cm
- Weight: 6.4 kg
- Frequency Response In-Room: 69 Hz – 25 kHz
Audio
- Enclosure Concept: 2-way
- Driver Complement: 2 × 4.5"/115 mm RST III Mid-bass drivers, 1 × 25 mm C-CAM Gold Tweeter
- Efficiency, installed: 90 dB
- Nominal Impedance: 8 Ohms
- Minimum Impedance: 4.4 Ohms @ 700 Hz
- Maximum SPL: 114 dB
- Power Handling (RMS): 100 Watts
- Recommended Amplifier Power: 100 – 200 Watts into 4 Ohms
- Crossover Frequency: LF/HF: 2.3 kHz
- Bass Principle: Bass reflex
- Bass Reflex Tuning Frequency: 62 Hz
Features
- Wall Mount: Integrated
- Mounting: Horizontal or vertical possible
- Logo: Reversible for horizontal and vertical mounting
- Finishes: Gloss Black, Satin White
Connections
- Speaker Terminals: Screw terminals
- Speaker Cable: up to 4 mm² or banana plugs
Manufacturer's Warranty
- Extended Warranty: 5 years on the Radius 4G series
Scope of Delivery
- Monitor Audio Radius On-Wall 4G
- Grille
- Documentation
Note: Mounting material is required separately and is not included.
Manufacturer information
Radius On-Wall 4G
The Monitor Audio Radius On-Wall 4G brings hi-fi and home theater sound flat against the wall. A discreet enclosure, flexible horizontal or vertical mounting, and the driver technology of the Radius 4G series make it an exciting solution for rooms where traditional speakers would take up too much space.
AVAILABILITY
Immediately available: Available in our warehouse
Available: Available in our supplier's warehouse*
* We ship either from our warehouse or from our supplier's warehouse, whereby the goods can be sent either to us as an intermediate storage or directly to the customer. Our supplier is the manufacturer or distributor of the goods.
DELIVERY TIME
Shipping takes place within the delivery time stated in the online shop.
DELIVERY PERIODS
Prepayment: The delivery period begins one day after receipt of payment
All other payment methods: The delivery period begins one day after conclusion of the contract
DELIVERY DELAYS
Delivery delays may originate from our suppliers and will be announced by us. If major delivery delays occur, we offer a partial delivery, a replacement, or a refund upon individual arrangement.
Check shipping costs
GERMANY & AUSTRIA
Free shipping on orders over €99
Below that: €4.99 shipping costs
Excluded from this are our TVs, which are shipped with a freight forwarding flat rate of €39. The order value is irrelevant.
EUROPE
€49.99 shipping costs
List of countries:
Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden
OUTSIDE EUROPE
Shipping outside Europe requires individual and personal agreement with our logistics team.
Pickup available
Simply pick up your order at the store
Extended Warranty
More protection thanks to an extended warranty
Cheaper elsewhere?
Ask us for a discount
Description
Monitor Audio Radius On-Wall 4G
No space for large speakers? - The Monitor Audio Radius On-Wall 4G delivers Hi-Fi and home cinema sound flat against the wall – with three drivers in a cabinet hardly wider than a picture frame. Wall mounting is possible horizontally or vertically – suitable for any room.
What makes the Monitor Audio Radius On-Wall 4G special:
- Extremely flat cabinet – Only 7.8 centimetres deep
- 25 mm C-CAM Gold Tweeter - Natural and clear, precise high-frequency range
- 2x 4.5"/115 mm C-CAM RST III Bass/Midrange Drivers - Punchy, distortion-free bass and realistic voice reproduction
- Discreet and space-saving – Mounts directly to the wall with integrated wall bracket; horizontally or vertically
- Available in two colour variants - High-gloss black & Silk matte white to choose from
Flat cabinet, big sound - Punchy bass, silky voices and precise highs
The Monitor Audio Radius On-Wall 4G is the perfect choice for anyone looking for a true Hi-Fi and home cinema speaker but who actually has no space for it.
Once mounted on the wall with the integrated wall bracket (you have the choice between horizontal and vertical wall mounting), the Radius On-Wall 4G impresses with punchy bass, balanced, realistic voice reproduction, and a precise, transparent high-frequency range in stereo and home cinema use.
It only gets better with a subwoofer from the Monitor Audio Vestra or Anthra series, which complements and rounds off the Radius On-Wall 4G in the bass range with its lower frequency limit of 69 Hertz (at -6 dB).
Completely revised C-CAM Gold Tweeter and RST III Diaphragm - Perfectly matched to the new Radius 4G series
The Radius 4G series features the new C-CAM (Ceramic-Coated Aluminium/Magnesium) Gold Tweeter with improved ventilation and cooling, ensuring the high-frequency range remains clean and precise even at high volumes.
In the bass and midrange, the new RST (Rigid Surface Technology) III diaphragm works with a new, even stiffer centring spider for greater precision and an optimised surround for an even more harmonious sound and less distortion across all frequencies.
Technically uncomplicated, acoustically a highlight - The Radius On-Wall 4G is a true team player
With a minimum impedance of 4.4 ohms, the Radius On-Wall 4G is an uncomplicated partner for practically any amplifier, and its high efficiency of 90 decibels underscores this once again. It already shows its strengths with amplifiers from 75 watts of power per channel, but 100 watts or more are recommended to fully utilise its potential.
The Radius On-Wall 4G also works well "alone", but for an extra portion of depth and pressure in the bass, a 10" subwoofer like the Monitor Audio Vestra W10 is recommended for room sizes of about 20 square metres; for up to 30 square metres, the Vestra W12 is suitable. And those with an even larger living room (or who want maximum volume and depth in the bass) can combine the Radius On-Wall 4G with a subwoofer of the calibre of the Vestra W15.
Reasons to choose the Monitor Audio Radius On-Wall 4G:
- Ultra-flat housing – At 7.8 centimetres deep, barely larger than a picture frame
- Integrated wall bracket – Simply unpack and mount horizontally or vertically on the wall
- Sealed enclosure - No bass reflex port to consider when positioning or mounting
- High-quality finish - With paint in high-gloss black and silk matte white
Things you should know about the Monitor Audio Radius On-Wall 4G:
- Limited bass depth – A subwoofer is recommended for maximum bass potential (lower frequency limit Radius On-Wall 4G: 69 Hertz at -6 dB)
- Not suitable for free-standing placement; must be wall-mounted
The Monitor Audio Radius On-Wall 4G is perfect for:
- Living spaces where speakers can be wall-mounted
- Smaller living rooms up to approx. 30 square metres
- Stereo and home cinema fans who want to listen in smaller rooms (~20 square metres) or are willing to place a subwoofer in the living room
- Amplifiers with 75 watts or more continuous power at four ohms
- Design-oriented listeners who value an elegant cabinet in addition to vibrant sound
- As a complement to speakers from the Monitor Audio Bronze and Silver series, as well as Monitor Audio Creator speakers, for example as ultra-compact surround speakers in a home cinema
The Monitor Audio Radius On-Wall 4G is less suitable for:
- Large rooms well over 30 square metres
- Small amplifiers with power below 75 watts RMS per channel
Frequently Asked Questions and Answers about the Monitor Audio Radius On-Wall 4G
Which amplifier do I need for the Monitor Audio Radius On-Wall 4G?
For an optimal sound experience, the stereo amplifier or AV receiver should deliver 75 watts or more per channel. Beyond that, the Radius On-Wall 4G works with practically any amplifier.
What is the best way to set up the Monitor Audio Radius On-Wall 4G?
The Radius On-Wall 4G is designed as a wall speaker and must therefore be mounted exactly there. Due to its sealed enclosure, positioning is uncomplicated, as no consideration needs to be given to a bass reflex port.
With which other speakers can the Monitor Audio Radius On-Wall 4G be combined?
Acoustically, the Radius 4G series, due to the great similarities in the drivers, is suitable for both the speakers from the Monitor Audio Bronze and Silver series, as well as the Monitor Audio Creator speakers of levels 1 and 2.
Which speaker cable is suitable? What is recommended?
The Radius On-Wall 4G has high-quality screw terminals and accepts speaker cables up to a maximum of 4 mm² or banana plugs. For typical living room lengths (<10 metres), a high-quality speaker cable made of OFC copper is absolutely sufficient; for longer distances, it is worth using 4 mm².
What official accessories are available for the Monitor Audio Radius On-Wall 4G?
No further accessories are required for the Radius On-Wall 4G, as it is wall-mounted and the wall bracket is integrated directly into the housing. The only thing still needed is suitable mounting material (dowels and screws).
In what colours is the Monitor Audio Radius On-Wall 4G available?
The speaker is available in high-gloss black and silk matte white.
What is the warranty period for the Monitor Audio Radius On-Wall 4G?
Monitor Audio offers an extended five-year warranty on the Radius 4G series.
What are the differences between the Monitor Audio Radius 1 4G, Radius On-Wall 4G, and Radius 3 4G?
The Radius 1 4G is the ultra-compact speaker from the series and has been developed with a focus on maximum flexibility, but requires a subwoofer for a full sound to convince in the bass range.
The Radius 3 4G also works as a "stand-alone speaker", meaning it sounds complete even without a subwoofer, but certainly benefits from a subwoofer in terms of bass depth.
The Radius On-Wall 4G is the largest speaker in the Radius 4G series and is consistently designed for wall mounting (possible horizontally and vertically). For this, it also has the best efficiency and highest sound pressure level with its dual bass/midrange drivers and single tweeter.
Properties
Specifications
General
- Product Type: 2-way wall speaker
- Dimensions W × H × D: 15.4 × 75.0 × 7.8 cm
- Weight: 6.4 kg
- Frequency Response In-Room: 69 Hz – 25 kHz
Audio
- Enclosure Concept: 2-way
- Driver Complement: 2 × 4.5"/115 mm RST III Mid-bass drivers, 1 × 25 mm C-CAM Gold Tweeter
- Efficiency, installed: 90 dB
- Nominal Impedance: 8 Ohms
- Minimum Impedance: 4.4 Ohms @ 700 Hz
- Maximum SPL: 114 dB
- Power Handling (RMS): 100 Watts
- Recommended Amplifier Power: 100 – 200 Watts into 4 Ohms
- Crossover Frequency: LF/HF: 2.3 kHz
- Bass Principle: Bass reflex
- Bass Reflex Tuning Frequency: 62 Hz
Features
- Wall Mount: Integrated
- Mounting: Horizontal or vertical possible
- Logo: Reversible for horizontal and vertical mounting
- Finishes: Gloss Black, Satin White
Connections
- Speaker Terminals: Screw terminals
- Speaker Cable: up to 4 mm² or banana plugs
Manufacturer's Warranty
- Extended Warranty: 5 years on the Radius 4G series
Scope of Delivery
- Monitor Audio Radius On-Wall 4G
- Grille
- Documentation
Note: Mounting material is required separately and is not included.
Manufacturer information

Radius On-Wall 4G
-
Fidelity Guide
Feel free to check out our Advice Blog. Here we discuss fundamentals and answer frequently asked questions from the Hi-Fi world.
-
FAQs
You can find questions and answers about products, availability, shipping, payment, and service in our FAQs.
-
Customer service
Our online customer service and sales team is available to assist you by phone or email.
shop@fidelity-hh.de
040 25776690 -
Fidelity Store
For personal and expert advice, visit our store. Here you can experience and compare products in 10 different listening studios across more than 800 m² of exhibition space.
Adlerstraße 79, Rellingen
Our exhibition
Arrange an appointment
Frequently asked questions about our products
Please visit our FAQ page to learn more.
Are all displayed products immediately available?
All visible products are generally either in stock with us or can be ordered from our suppliers. You can find the current availability or delivery time on the respective product page. If you have any questions about availability, please feel free to contact us at any time.
Do you offer pre-purchase advice?
Yes. If you are still unsure about your choice or if our online shop does not cover all the information you need, we would be happy to advise you in person. We are committed to finding a long-term and suitable solution for your requirements. Please contact us in person to benefit from our experience.
How do I find the right accessories for my setup?
The added value that the right accessories can bring is often underestimated. To help you get the most out of your setup, we are happy to advise you personally.
Is there a warranty on all products?
Our products come with their own manufacturer's warranty, the duration and terms of which may vary depending on the brand and product. We handle warranty claims for products purchased from us on your behalf.

