SKU: 48947641642

Monitor Audio Platinum 3G In-Wall Speaker

Sale price$3149.55 Regular price$3499.50
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Description

Monitor Audio Platinum 3G In-Wall SpeakerPlatinum In Wall 3G is Monitor Audios flagship high performance, architectural, in wall speaker. It is designed for use in high end audio and movie systems, where accurate, clear and lifelike sound is required. With the minimum of room intrusion but with maximum scale and sonic impact. Platinum In Wall 3G can be installed either vertically or horizontally, which means it can be used on any channel within a system and is ideal for LCR applications and

Platinum In-Wall 3G is Monitor Audio’s flagship high-performance, architectural, in-wall speaker. It is designed for use in high-end audio and movie systems, where accurate, clear and lifelike sound is required. With the minimum of room intrusion but with maximum scale and sonic impact. Platinum In-Wall 3G can be installed either vertically or horizontally, which means it can be used on any channel within a system and is ideal for LCR applications and for seamless tonal accuracy within a theatre system.

Key Features

  • 1 x MPD III high-frequency transducer for a larger, clearer, and more lifelike sound
  • 1 x 4” RDT III mid-bass driver for incredible levels of clarity and scale
  • 2 x 6” RDT III bass drivers for exceptional weight and depth
  • Patented 'DCF' (Dynamic Coupling Filter) mechanism for more natural sound
  • Bespoke speaker terminals and footings
  • Underhung, edge-wound voice coils: greater driver efficiency and lifelike dynamics, less distortion
  • Rigid cabinet construction made from 25 mm MDF with steel back
  • Extensive internal bracing using thick MDF cross bracing techniques

Specifications:

General

  • Recommended Power 150-600 watts
  • Impedance 4 Ω
  • Frequency Response, Free-Field (-6dB) 41 Hz – >60 kHz 41 Hz – 60 kHz
  • Frequency Response, In-Room (-6dB) 27 Hz – >60 kHz
  • Sensitivity 88.00 dB

Drivers

  • MPD III tweeter
  • 2 x 6" RDT III bass drivers
  • 1 x 4" RDT III mid-range driver
  • Bass Alignment Sealed

External Dimensions (Including Grille and Terminals)

Height 120.7 cm Width 33.2 cm Depth 10.6 cm Weight 27.7 kg

Cut-Out Dimensions

Height 117.5 cm Width 30.0 cm Depth 97.5 cm

Crossover Frequency

LF/MF: 825 hz MF/HF: 3 kHz

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48947641642

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4.8 ★★★★★
Based on 8 reviews
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Verified Purchase
Clara
San Leandro, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
M
Verified Purchase
Mo
Chelsea, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jason
Lowell, US
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware. I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
M
Verified Purchase
Miah
Pawtucket, US
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome. The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings. One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐 These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
T
Verified Purchase
Tyler Kline
Los Angeles, US
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room. Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project. One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely. The rest of the hardware worked fine and once installed the shelves feel solid and hold items well. Pros - Clean modern look - Easy installation - Feels solid once mounted - Good size for books or decor Cons - The small level included isn’t very accurate — use your own level - One of the metal brackets was slightly bent out of the box but straightened out easily Helpful tip: Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely. Final thoughts: For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026

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