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M&K Sound IW Series Frameless Architectural In-Wall Loudspeaker
The award winning design of the IW150 is the In-Wall equivalent of M&K Sound’s S150 Series used on a daily basis as the preferred monitoring tool in hundreds of professional film and music recording studios around the world and in thousands of serious home entertainment systems.
Can there be any better choice than the speakers on which your favorite movies and music were actually created?
The M&K Sound In-Wall Loudspeaker
The M&K Sound Frameless Architectural In-Wall loudspeaker range consists of open baffle designs as well as sealed box versions of the brand’s popular satellite and on-wall models to provide wide flexibility in terms of applications and acoustic preferences. The series maintains the sonic integrity that has made M&K Sound a legend for over four decades.
Unlike other In-Wall makers, M&K Sound employs the exact same drivers and crossover technologies found in their acclaimed professional and consumer reference monitors to deliver consistent sound coverage throughout the room for superior imaging in stereo and surround, even when the speakers are fitted in the ceiling.
Timbre Matching
The ambitious goal of the latest M&K Sound Architectural In-Wall range has been to counterbalance the inevitable acoustic consequences of reducing internal volume to 20 – 30% of a normal cabinet, while preserving the celebrated neutrality, realism and musicality that are the signature of M&K Sound.
This level of tonal consistency and timbre matching offers unique flexibility and the opportunity to mix and match speakers from across the entire M&K Sound line-up.
M&K Sealed In-Wall Boxes
The materials, acoustic properties, assembly and volume of every M&K Sound sealed box are all known factors during system design, so that the construction of the wall, the type of materials inside the wall and the volume of air behind the speaker all have no impact on final performance. It is this extreme level of control over the interaction of speaker and wall that makes it possible for M&K Sound to offer designer-friendly, invisible installation at no sacrifice in ultimate performance.
M&K Sound back boxes of 18mm MDF are painted with black structure polyurethane lacquer for moisture resistant sealed surfaces. The sealed box also provides effective protection against dust, insects and vermin. Damping pads on the rear panel eliminate vibration when in direct contact with the wall in shallow installations. All mounting hardware is pre-fitted to the box, including metal clamps to fix speaker wire in the pre-cut cable groove on the rear of the box. Gold-plated push-on terminals with +/- polarity markings allow easy cable connection without the use of tools. Torx mounting screws with special washers are used for smooth mounting along with a practical, efficient, self-tightening dog ear clamp system for a perfect seal between baffle and wall.
Invisible, Immersive and In the Right Place
Ever more complex surround formats such as Dolby Atmos, DTS X and Auro create an increasing need for high performance, yet concealed loudspeakers to handle installations incorporating 9 – 11 channels and beyond with discretion and style.
To deliver full-bodied performance from shallow, sealed enclosures, M&K Sound begins with the identical drivers used in their original satellite models and extensively modifies the crossover design to compensate precisely for the reduced internal volume bringing In-Wall response much closer to the frequency response of the original loudspeakers. Further revisions take into account practical considerations such as service access and, most critically, ensure easy, fast, accurate and safe installation.
Simply mark the intended placement using the cut-out template enclosed with the speaker, prepare the opening, attach speaker wire, drop in the box, tighten screws and fit the front grille.
M&K Custom Designed Tweeters
Flush-mounted in the steel baffle to eliminate reflections, M&K Sound’s custom designed tweeters raise the bar for speed, accuracy, reliability, build quality and performance.
Based on M&K Sound’s proprietary aerodynamic flow control damping system, their exclusive tweeters provide extended frequency response for an absolutely seamless transition to the bass/mid drive units.
Metal Grilles
M&K’s Architectural frameless, low profile, metal mesh front grilles are a subtly elegant, virtually invisible element in any living space. The grilles can be painted to match the surrounding surface.
For vibration-free mounting, the M&K In-Wall grilles are fitted with multiple rubber-coated neodymium magnets with more than enough strength for safe in-ceiling use.
| Impedance | 4 ohm |
| Recommended Amplifier Power: | 25-400W |
| Bass/Midrange: | 2 x 5.25” Polypropylene |
| High Frequency Driver: | 3 x 1” Soft fabric dome |
| Frequency Response: | 80 Hz – 20 kHz, ±3dB |
| Sensitivity: | 90 dB, 2.83V/1m |
| Grille Dimensions (HxW): | 14.17 x 12.51”, 360 x 318 mm |
| Baffle Dimensions (HxW): | 13.93 x 12.24”, 354 x 311 mm |
| Wall Cutout (HxW): | 13.03 x 11.33”, 331 x 288 mm |
| Mounting Depth: | 3.74”, 95 mm |
| Weight: | 18.8 lbs / 8,5 kg |
LOUDSPEAKERS M&K Sound IW150 5.1 speaker pack review Steve Withers | Sep 24, 2018 facebook sharing buttontwitter sharing buttonflipboard sharing buttonpinterest sharing buttonemail sharing buttonsharethis sharing button If you browse your dictionary for the word iconic, you’ll probably see a picture of the M&K Sound S150 next to the definition. The company has had its up and downs – co-founder Ken Kreisel has departed – but the S150 has been a professional studio monitor of choice for decades. Since its introduction in 1995, the speaker has been installed in film and music recording studios the world over, and it may well have been involved in the mixing of some of your favourite movies and songs. M&K Sound has recently released the larger S300, essentially moving the S150 down to a mid-range position; but that doesn’t detract from what remains a world-class speaker. So if the S150 has been around for so long, what's new from the company? A new approach to installation. Now You See Me... The original speaker uses a traditional box cabinet, which is designed to be positioned on stands or a convenient shelf. The IW150, as indicated by the prefix, is an in-wall version of the S150. The appeal of in-wall speakers is undeniable; as soon as you can’t see the source of the sound it becomes easier for the listener to be immersed in the experience. This is especially true when it comes to movies, where the whole idea is to create the sensation of actually being in the film’s environment. And for some rooms/people, going in-wall is the only acceptable aesthetic option. The problem with in-wall speakers is that, as the name suggests, you have to physically put them in the wall, which requires a custom installer, a gifted amateur, or the help of a friendly builder. The other problem is that by removing the speaker from its cabinet and sticking it in a wall, you might change its sonic integrity. In the interests of full disclosure, I didn’t start attacking the walls of my home cinema with a sledgehammer in order to audition M&K Sound's IW150s. Thankfully I didn’t need to because the speaker uses a sealed enclosure. While it didn’t look pretty, I was able to place the speakers right up against the wall on speaker stands. This will have had some effect on their overall signature, as the drivers are no longer interacting with an 'infinite baffle', but shouldn't have aversely impacted the performance. The 5.1 package reviewed here is composed of three IW150s for front left, right and centre (£1,200 each), a pair of S150T tripoles for the surrounds (£1,750), and the X12 subwoofer (£3,200). It’s probably worth pointing out that neither the S150Ts nor the X12 are either in-wall or new, but M&K Sound deems them the perfect partners for its latest invention. Of course, if you had enough space, you could use the IW150 for every channel. But the S150T’s proprietary tripole configuration is specifically designed for smaller rooms, where surround speakers are often much closer to the listener. The S150T is THX Ultra-certified, has a lovely cabinet with a black satin finish, and a bracket for wall-mounting. Further down the brand's in-wall range you'll find the IW950 (twin tweeter, single midbass); and more compact two-way IW95, IW85 and IW5 models. The also-THX-certified X12 is a beast of a subwoofer, and uses a pair of long-stroke 12in woofers (in a push-pull configuration) in a sealed black-satin enclosure. M&K Sound knows a thing or two about building subs, and the driver array is designed to deliver a total surface area equivalent to a single 18in unit. In other words it should be more than capable of enhancing the bass performance of the relatively small passive speakers. For those seeking an all in-wall system, M&K Sound sells the passive 2 x 8in IW28S subwoofer. 918mkspeak.4.jpg Three Plus Two = One Serious Speaker From the front, the IW150 looks exactly like the S150: it has the classic M&K Sound driver layout of three vertically aligned 1in soft fabric dome tweeters down its left-hand side, and a pair of 5.25in polypropylene woofers ranged down the right. The speakers come with white magnetic grilles that can be painted whatever colour the wall is, blending them in with the overall decor. M&K Sound’s aim here is to reduce the internal volume to 20 to 30 per cent of a normal S150 cabinet, while preserving the neutrality, realism and musicality associated with its design. As a result, the company claims a frequency response for the IW150 of 80Hz to 20kHz and a sensitivity of 90dB, which is very close to the S150 despite the lack of a traditional enclosure. The cabinet is sealed to provide effective protection, and there are damping pads on the rear to eliminate vibration when in direct contact with the wall. All the mounting hardware is pre-fitted to the enclosure, including metal clamps to fix speaker wire in the pre-cut grooves, and gold-plated push-on terminals for easy cable connection. There are torx mounting screws on the front baffle that turn special washers for a smooth installation, along with a practical and efficient self-tightening dog-ear clamp system for a flush seal between baffle and wall. I set the speakers up as I would any 5.1 system, with the three IW150s at the same level along the front wall, just beneath my projector screen. The S150Ts were at a similar height, but to the side and slightly behind the main listening position; the X12 was at the front, located in a part of the room I knew would deliver a relatively neutral bass response. The speakers were driven by my reference Arcam AVR850 AV receiver. 918mkspeak.2.jpg Utterly Transparent As soon as I started listening to the IW150s, I could tell that M&K Sound had achieved the goal of retaining what makes its speakers so special, while also significantly reducing the size of the enclosure. The front three models perfectly match each other in terms of tonality, but are also utterly transparent when it comes to their delivery. That’s what you’d expect from a speaker with a studio monitor heritage, but the fact the IW150s can do this given their slender dimensions is nothing short of a revelation. Although they’re fairly sensitive speakers, they appreciate being driven with a bit of power, and the AVR850 is more than happy to oblige. Pushed into action, the IW150s are effortlessly capable of a pleasingly open sound that fills the room. There’s a wonderful detail and clarity here, and a sense that you’re hearing exactly what the sound designer or mixer wants you to. The high-end is perfectly rendered, while the mid-tones are also well represented, resulting in an excellent performance across the majority of the frequency range.
M&K Sound IW Series Frameless Architectural In-Wall Loudspeaker
The award winning design of the IW150 is the In-Wall equivalent of M&K Sound’s S150 Series used on a daily basis as the preferred monitoring tool in hundreds of professional film and music recording studios around the world and in thousands of serious home entertainment systems.
Can there be any better choice than the speakers on which your favorite movies and music were actually created?
The M&K Sound In-Wall Loudspeaker
The M&K Sound Frameless Architectural In-Wall loudspeaker range consists of open baffle designs as well as sealed box versions of the brand’s popular satellite and on-wall models to provide wide flexibility in terms of applications and acoustic preferences. The series maintains the sonic integrity that has made M&K Sound a legend for over four decades.
Unlike other In-Wall makers, M&K Sound employs the exact same drivers and crossover technologies found in their acclaimed professional and consumer reference monitors to deliver consistent sound coverage throughout the room for superior imaging in stereo and surround, even when the speakers are fitted in the ceiling.
Timbre Matching
The ambitious goal of the latest M&K Sound Architectural In-Wall range has been to counterbalance the inevitable acoustic consequences of reducing internal volume to 20 – 30% of a normal cabinet, while preserving the celebrated neutrality, realism and musicality that are the signature of M&K Sound.
This level of tonal consistency and timbre matching offers unique flexibility and the opportunity to mix and match speakers from across the entire M&K Sound line-up.
M&K Sealed In-Wall Boxes
The materials, acoustic properties, assembly and volume of every M&K Sound sealed box are all known factors during system design, so that the construction of the wall, the type of materials inside the wall and the volume of air behind the speaker all have no impact on final performance. It is this extreme level of control over the interaction of speaker and wall that makes it possible for M&K Sound to offer designer-friendly, invisible installation at no sacrifice in ultimate performance.
M&K Sound back boxes of 18mm MDF are painted with black structure polyurethane lacquer for moisture resistant sealed surfaces. The sealed box also provides effective protection against dust, insects and vermin. Damping pads on the rear panel eliminate vibration when in direct contact with the wall in shallow installations. All mounting hardware is pre-fitted to the box, including metal clamps to fix speaker wire in the pre-cut cable groove on the rear of the box. Gold-plated push-on terminals with +/- polarity markings allow easy cable connection without the use of tools. Torx mounting screws with special washers are used for smooth mounting along with a practical, efficient, self-tightening dog ear clamp system for a perfect seal between baffle and wall.
Invisible, Immersive and In the Right Place
Ever more complex surround formats such as Dolby Atmos, DTS X and Auro create an increasing need for high performance, yet concealed loudspeakers to handle installations incorporating 9 – 11 channels and beyond with discretion and style.
To deliver full-bodied performance from shallow, sealed enclosures, M&K Sound begins with the identical drivers used in their original satellite models and extensively modifies the crossover design to compensate precisely for the reduced internal volume bringing In-Wall response much closer to the frequency response of the original loudspeakers. Further revisions take into account practical considerations such as service access and, most critically, ensure easy, fast, accurate and safe installation.
Simply mark the intended placement using the cut-out template enclosed with the speaker, prepare the opening, attach speaker wire, drop in the box, tighten screws and fit the front grille.
M&K Custom Designed Tweeters
Flush-mounted in the steel baffle to eliminate reflections, M&K Sound’s custom designed tweeters raise the bar for speed, accuracy, reliability, build quality and performance.
Based on M&K Sound’s proprietary aerodynamic flow control damping system, their exclusive tweeters provide extended frequency response for an absolutely seamless transition to the bass/mid drive units.
Metal Grilles
M&K’s Architectural frameless, low profile, metal mesh front grilles are a subtly elegant, virtually invisible element in any living space. The grilles can be painted to match the surrounding surface.
For vibration-free mounting, the M&K In-Wall grilles are fitted with multiple rubber-coated neodymium magnets with more than enough strength for safe in-ceiling use.
| Impedance | 4 ohm |
| Recommended Amplifier Power: | 25-400W |
| Bass/Midrange: | 2 x 5.25” Polypropylene |
| High Frequency Driver: | 3 x 1” Soft fabric dome |
| Frequency Response: | 80 Hz – 20 kHz, ±3dB |
| Sensitivity: | 90 dB, 2.83V/1m |
| Grille Dimensions (HxW): | 14.17 x 12.51”, 360 x 318 mm |
| Baffle Dimensions (HxW): | 13.93 x 12.24”, 354 x 311 mm |
| Wall Cutout (HxW): | 13.03 x 11.33”, 331 x 288 mm |
| Mounting Depth: | 3.74”, 95 mm |
| Weight: | 18.8 lbs / 8,5 kg |
LOUDSPEAKERS M&K Sound IW150 5.1 speaker pack review Steve Withers | Sep 24, 2018 facebook sharing buttontwitter sharing buttonflipboard sharing buttonpinterest sharing buttonemail sharing buttonsharethis sharing button If you browse your dictionary for the word iconic, you’ll probably see a picture of the M&K Sound S150 next to the definition. The company has had its up and downs – co-founder Ken Kreisel has departed – but the S150 has been a professional studio monitor of choice for decades. Since its introduction in 1995, the speaker has been installed in film and music recording studios the world over, and it may well have been involved in the mixing of some of your favourite movies and songs. M&K Sound has recently released the larger S300, essentially moving the S150 down to a mid-range position; but that doesn’t detract from what remains a world-class speaker. So if the S150 has been around for so long, what's new from the company? A new approach to installation. Now You See Me... The original speaker uses a traditional box cabinet, which is designed to be positioned on stands or a convenient shelf. The IW150, as indicated by the prefix, is an in-wall version of the S150. The appeal of in-wall speakers is undeniable; as soon as you can’t see the source of the sound it becomes easier for the listener to be immersed in the experience. This is especially true when it comes to movies, where the whole idea is to create the sensation of actually being in the film’s environment. And for some rooms/people, going in-wall is the only acceptable aesthetic option. The problem with in-wall speakers is that, as the name suggests, you have to physically put them in the wall, which requires a custom installer, a gifted amateur, or the help of a friendly builder. The other problem is that by removing the speaker from its cabinet and sticking it in a wall, you might change its sonic integrity. In the interests of full disclosure, I didn’t start attacking the walls of my home cinema with a sledgehammer in order to audition M&K Sound's IW150s. Thankfully I didn’t need to because the speaker uses a sealed enclosure. While it didn’t look pretty, I was able to place the speakers right up against the wall on speaker stands. This will have had some effect on their overall signature, as the drivers are no longer interacting with an 'infinite baffle', but shouldn't have aversely impacted the performance. The 5.1 package reviewed here is composed of three IW150s for front left, right and centre (£1,200 each), a pair of S150T tripoles for the surrounds (£1,750), and the X12 subwoofer (£3,200). It’s probably worth pointing out that neither the S150Ts nor the X12 are either in-wall or new, but M&K Sound deems them the perfect partners for its latest invention. Of course, if you had enough space, you could use the IW150 for every channel. But the S150T’s proprietary tripole configuration is specifically designed for smaller rooms, where surround speakers are often much closer to the listener. The S150T is THX Ultra-certified, has a lovely cabinet with a black satin finish, and a bracket for wall-mounting. Further down the brand's in-wall range you'll find the IW950 (twin tweeter, single midbass); and more compact two-way IW95, IW85 and IW5 models. The also-THX-certified X12 is a beast of a subwoofer, and uses a pair of long-stroke 12in woofers (in a push-pull configuration) in a sealed black-satin enclosure. M&K Sound knows a thing or two about building subs, and the driver array is designed to deliver a total surface area equivalent to a single 18in unit. In other words it should be more than capable of enhancing the bass performance of the relatively small passive speakers. For those seeking an all in-wall system, M&K Sound sells the passive 2 x 8in IW28S subwoofer. 918mkspeak.4.jpg Three Plus Two = One Serious Speaker From the front, the IW150 looks exactly like the S150: it has the classic M&K Sound driver layout of three vertically aligned 1in soft fabric dome tweeters down its left-hand side, and a pair of 5.25in polypropylene woofers ranged down the right. The speakers come with white magnetic grilles that can be painted whatever colour the wall is, blending them in with the overall decor. M&K Sound’s aim here is to reduce the internal volume to 20 to 30 per cent of a normal S150 cabinet, while preserving the neutrality, realism and musicality associated with its design. As a result, the company claims a frequency response for the IW150 of 80Hz to 20kHz and a sensitivity of 90dB, which is very close to the S150 despite the lack of a traditional enclosure. The cabinet is sealed to provide effective protection, and there are damping pads on the rear to eliminate vibration when in direct contact with the wall. All the mounting hardware is pre-fitted to the enclosure, including metal clamps to fix speaker wire in the pre-cut grooves, and gold-plated push-on terminals for easy cable connection. There are torx mounting screws on the front baffle that turn special washers for a smooth installation, along with a practical and efficient self-tightening dog-ear clamp system for a flush seal between baffle and wall. I set the speakers up as I would any 5.1 system, with the three IW150s at the same level along the front wall, just beneath my projector screen. The S150Ts were at a similar height, but to the side and slightly behind the main listening position; the X12 was at the front, located in a part of the room I knew would deliver a relatively neutral bass response. The speakers were driven by my reference Arcam AVR850 AV receiver. 918mkspeak.2.jpg Utterly Transparent As soon as I started listening to the IW150s, I could tell that M&K Sound had achieved the goal of retaining what makes its speakers so special, while also significantly reducing the size of the enclosure. The front three models perfectly match each other in terms of tonality, but are also utterly transparent when it comes to their delivery. That’s what you’d expect from a speaker with a studio monitor heritage, but the fact the IW150s can do this given their slender dimensions is nothing short of a revelation. Although they’re fairly sensitive speakers, they appreciate being driven with a bit of power, and the AVR850 is more than happy to oblige. Pushed into action, the IW150s are effortlessly capable of a pleasingly open sound that fills the room. There’s a wonderful detail and clarity here, and a sense that you’re hearing exactly what the sound designer or mixer wants you to. The high-end is perfectly rendered, while the mid-tones are also well represented, resulting in an excellent performance across the majority of the frequency range.
