Monitor Audio Radius 3 4G

The Monitor Audio Radius 3 4G is a passive mini-monitor speaker for music, TV, gaming, and home cinema. Its compact format makes it particularly attractive for living rooms and workspaces where speakers need to sound high-quality but remain visually discreet. The speaker can be wall-mounted or placed on a stand, or positioned on a shelf or desk with the Desk Pad.

What makes the Monitor Audio Radius 3 4G special

• Compact cabinet dimensions - Full-fledged 2-way speaker in an elegant cabinet
• 25 mm C-CAM Gold Tweeter - Natural, clear, and precise treble range
• 4.5"/115 mm C-CAM RST III Bass/Midrange Driver - Crisp, distortion-free bass and realistic vocal reproduction
• Four placement options - On the desk, on a shelf, on a stand, or directly wall-mounted
• Available in two color options - Gloss Black & Satin White to choose from
  

Small cabinet, big sound - Crisp bass, silky vocals, and precise treble

Despite its compact size, the Monitor Audio Radius 3 4G has a lot to offer. For both music and movies, it delivers surprisingly mature bass, clear and balanced vocal reproduction, and utmost precision in the treble.

And despite its compact cabinet dimensions, the Radius 3 4G functions as a "stand-alone speaker" without a subwoofer, boasting a low-frequency extension of 44 Hertz (at -6 dB). However, this does not mean that it would not benefit from an additional subwoofer, such as models from the Monitor Audio Vestra or Anthra series.

Completely redesigned 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 that the treble remains clean and precise even at high volumes.

For bass and midrange, the new RST (Rigid Surface Technology) III diaphragm is used, with a new, even firmer voice coil spider for greater precision and an optimized surround for an even more harmonious sound and less distortion across all frequencies.

Technically uncomplicated, acoustically a highlight - The Radius 3 4G is a true team player

With its minimum impedance of four ohms, the Radius 3 4G is an uncomplicated partner for any amplifier. Due to its efficiency of 84 decibels, it appreciates somewhat more powerful amplifiers with at least 75 watts of continuous power. The reward is a compact speaker that can credibly fill larger rooms up to about 20 sq m on its own – i.e., without a subwoofer.

For extra depth and punch in the bass in a room size of about 20 square meters, a 10" subwoofer like the Monitor Audio Vestra W10 is sufficient. For up to 30 square meters, the Vestra W12 is suitable, and for those with an even larger living room (or who desire maximum volume and bass depth), the Radius 3 4G can be combined with a subwoofer of the caliber of the Vestra W15.

Thanks to its flexibility, the Radius 3 4G can be placed practically anywhere. Whether in a bookshelf, on a desk with the Desk Pad, on the Radius Floor Stand, or wall-mounted using the Monitor Audio MASM and FIX-M wall brackets.

Reasons to choose the Monitor Audio Radius 3 4G

• Compact cabinet – Takes up little space and is hardly noticeable
• Maximum flexible placement - On a shelf, wall-mounted, on a stand, or on a desk
• Bass reflex cabinet – More bass pressure and depth when placed close to a wall
• High-quality finish - With gloss black and satin white lacquer

What you should know about the Monitor Audio Radius 3 4G:

• Limited bass depth – A subwoofer is recommended for maximum bass potential (lower frequency limit Radius 3 4G: 44 Hertz at -6 dB)
• Requires power - 84 dB efficiency requires more powerful amplifiers to unleash its full sound potential

The Monitor Audio Radius 3 4G is perfect for:

• Living spaces where speakers should be as discreet as possible or where there is no space for speakers at all
• Smaller living rooms up to about 30 square meters or people who want to listen to high-quality music at their desk
• Stereo and home cinema fans who want to listen in smaller rooms (~20 square meters) or are willing to add a subwoofer to their living room
• Amplifiers from 75 watts 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 discreetly wall-mounted surround speakers in a home cinema

The Monitor Audio Radius 3 4G is less suitable for:

• Large rooms far exceeding 30 square meters
• Small amplifiers with power below 75 watts RMS per channel

Our conclusion on the Monitor Audio Radius 3 4G

The Radius 3 4G is a full-fledged HiFi speaker in an extremely compact and beautifully crafted, lacquered cabinet. With its 25 mm C-CAM Gold Tweeter and 4.5"/115 mm RST III Bass/Midrange driver, and its high flexibility in placement, the Radius 3 4G can find a place practically anywhere from which it will unfold its sonic charm.

A subwoofer for completion is recommended but not absolutely necessary.

Frequently Asked Questions and Answers about the Monitor Audio Radius 3 4G

Which amplifier do I need for the Monitor Audio Radius 3 4G?

For an optimal sound experience, the stereo amplifier or AV receiver should deliver 75 watts or more per channel. Beyond that, the Radius 3 4G works with practically any amplifier.

What is the best way to set up the Monitor Audio Radius 3 4G?

The speaker is extremely flexible and can be placed with its bass reflex cabinet with a small distance from the wall (~10 centimeters) on furniture or in a bookshelf, or placed on a desk with the optionally available accessories such as the Desk Pad, mounted on the Radius Floor Stand, or attached to the wall with the MASM or FIX-M wall brackets.

Which other speakers can the Monitor Audio Radius 3 4G be combined with?

Acoustically, due to the great similarities in the drivers, the Radius 4G series matches speakers from both the Monitor Audio Bronze and Silver series, as well as Monitor Audio Creator speakers of levels 1 and 2.

Which speaker cable is suitable? What is recommended?

The Radius 3 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 meters), a high-quality speaker cable made of OFC copper is absolutely sufficient; for longer distances, it is worthwhile to opt for 4 mm².

What official accessories are available for the Monitor Audio Radius 3 4G?

For the Radius 3 4G, wall mounts Monitor Audio FIX-M and MASM are available for wall mounting, the Monitor Audio Radius Floor Stand as a stand, and the rubberized and furniture-friendly Radius Desk Pad for placement on a desk or generally with a slight upward angle.

In what colors is the Monitor Audio Radius 3 4G available?

The speaker is available in Gloss Black and Satin White.

How long is the warranty for the Monitor Audio Radius 3 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 3 4G, and Radius On-Wall 4G?

The Radius 1 4G is the ultra-compact speaker in the series and has been developed with a focus on maximum flexibility, but requires a subwoofer for a full sound image to convince in the bass.

The Radius 3 4G also functions 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 consistently relies on wall mounting (horizontal and vertical possible). For this, with its dual bass/midrange drivers and single tweeter, it also has the best efficiency and highest sound pressure.

Technical Data

General

• Product Type: Passive 2-Way Mini Monitor Speaker
• Dimensions W × H × D: 15.0 × 25.5 × 20.1 cm
• Weight: 3.7 kg per piece
• Frequency Response, Free Field: 57 Hz – 25 kHz
• Frequency Response, In-Room: 44 Hz – 25 kHz
• Available Cabinet Finishes: Gloss Black, Satin White

Audio

• Enclosure Concept: 2-Way
• Driver Complement: 1 × 4.5" / 115 mm RST III Mid-Woofer, 1 × 25 mm C-CAM Gold Tweeter
• Sensitivity: 84 dB
• Recommended Amplifier Power: 75 – 150 Watts into 4 Ohms
• Continuous Power Handling: 75 Watts
• Nominal Impedance: 8 Ohms
• Minimum Impedance: 4.0 Ohms @ 250 Hz
• Maximum SPL: 107 dB
• Bass Principle: Bass Reflex
• Bass Reflex Tuning Frequency: 53 Hz
• Crossover Frequency: LF/HF: 2.7 kHz

Connections

• Speaker Connections: Speaker Binding Posts
• Suitable for: Speaker cables up to max. 4 mm² or Banana plugs

Placement and Accessories

• Compatible with Wall Mount: MASM, FIX-M
• Compatible with Floor Stand: Radius Floor Stand
• Compatible with Desk Pad: Radius Desk Pad
• Accessory Status: Optionally Available

Manufacturer's Warranty

• Extended Manufacturer's Warranty: 5 Years on the Radius 4G Series

Scope of Delivery

• Monitor Audio Radius 3 4G
• Grille
• Rubber Feet
• Documents

• Sicherheitshinweise
• Datenblatt
• Prospekt
• Sicherheitshinweise
• Datenblatt
• Prospekt

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