Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Retains the neutrality, realism, and musicality of the original S150 design, despite a smaller enclosure
- Front three models perfectly match each other in terms of tonality, delivering an utterly transparent sound
- Delivers a beautifully cohesive 360-degree soundstage, allowing for precise steering of effects that remain tonally balanced
- 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
- Comes with white magnetic grilles that can be painted whatever colour the wall is, blending them in with the overall decor
Product Considerations
- Slightly lacking at the low-end, designed to be used with a subwoofer
- Placement is non-trivial and orientation moreso, due to the multi-woofer/tweeter design, the speaker has a weird dispersion that will sound different depending on which side of the speaker one is on
- Data shows a +6dB bump centered on ~150Hz, which backs up the lower vocal resonance heard by the reviewer
- There is a hole in the sound on one side but not the other when moving to the side of the speaker
- Boosted up treble region, but not as boosted as the reviewer has seen
- Has a horizontal asymmetric sound field due to the two woofers on one side of the tweeters, but not on the other side
Comparisons (according to reviewers)
- Compared to the M&K Sound S150, the IW150 aims to reduce the internal volume while preserving the original's qualities
Takeaway: The IW150 is an exceptional in-wall speaker that maintains the detail, clarity, and transparency of a professional studio monitor, making it a great choice if one is looking for in-wall speakers. It delivers a cohesive soundstage with excellent tonality and is designed to be paired with a subwoofer for a complete audio experience.
All
IW150
reviews
Manufacturer details
- 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)
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- M&K Sound speakers are frequently used as reference monitors in music and film production facilities, indicating a professional-grade accuracy.
- The brand's Phased-Focused crossover technology is designed to create a uniform timbre balance throughout the listening room, improving the three-dimensional response from almost any position.
- M&K Sound's Tripole speaker design combines a direct radiator for precise directional sound with a dipole for diffused sound, delivering a more immersive 360-degree soundstage.
- M&K designs subwoofers implementing a push-pull driver configuration to reduce distortion and increase bass output, enabling a smaller cabinet size while maintaining powerful bass.
Select products
MP150
- Positioning: An entry-level on-wall speaker designed for compact spaces.
- Description: Offers low-compression tweeters and studio-monitor derived components to deliver clear sound in environments with limited space. Compared to higher series like the 300, M, and 950, it sacrifices advanced features and power for simplicity and affordability.
S300
- Positioning: A compact, full-range speaker aimed at delivering reference home cinema sound.
- Description: Uses driver mounting with isolated tweeter and woofer brackets to reduce cabinet coloration and maintain clarity. When compared with the S300T, M70, and MP950, it presents a straightforward design focused on purity of sound rather than the enhanced surround or advanced performance found in the higher series.
S300T
- Positioning: A specialized tripole speaker optimized for immersive and precisely positioned rear sound.
- Description: Integrates isolated side chambers with additional drivers to boost surround imaging and deliver a more enveloping sound field than the standard S300. In comparison with the M70 and MP950, its focus remains on enhanced surround coverage rather than the overall higher power and advanced engineering of the premium lines.
M70
- Positioning: A design-focused, ultra-slim on-wall speaker balancing aesthetics with modern performance.
- Description: Features optimized crossover design and new components for easy, vibration-free installation paired with clear and dynamic sound reproduction. Relative to the entry-level MP150 and 300 series, it offers refined engineering and elegance, though it does not reach the high-powered, professional level found in the 950 series.
MP950
- Positioning: A high-end on-wall speaker engineered for exceptional performance in demanding home cinema settings.
- Description: Uses professional-grade drivers with a phase-focused crossover for high power handling, speed, and precise imaging that set it apart with superior sound dynamics. Compared to the MP150, S300 series, and M70, it delivers the most advanced technology.
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Used
M&K Sound
What if you spend more?
The first THX® Certified Dominus in-wall loudspeaker for very large home cinemas with both vertical and horizontal installation flexibility
M&K Sound has combined a high-performance one-inch soft dome tweeter with a precision-crafted aluminum waveguide to ensure accurate and focused vertical and horizontal dispersion characteristics. The design marks the first time M&K Sound has developed a horn-loaded loudspeaker which guarantees real and natural delivery, whether placed vertically or horizontally.
The IW500 combines two Kurt Muller three-inch soft dome midrange drivers (800 Hz to 2500 Hz) with shallow waveguides. These pair with a complex crossover network to promote an audible smoothness and non-fatiguing character across the frequency range. By consolidating excellent vertical response from the crossover with excellent horizontal dispersion from the vertical driver array, the IW500 produces a profoundly flat power response.
The IW500's onboard dual 8-inch woofers employ large magnets and carbon fiber cones to achieve its high sensitivity rating (92 dB SPL @ 1 meter with 2.83V), enabling a full-bodied and visceral low-frequency response. M&K Sound's proprietary 'Capacitive Coupling' design feature in the crossover allows for a much smaller enclosure than normally required. It also ensures tighter bass response, increased impedance (easier to drive) and less distortion.
The IW500's revolutionary crossover is responsible for the loudspeaker's smooth frequency and polar responses. Transition between high, mid and bass frequencies is seamless, a trademark designfeature of M&K Sound's reference loudspeakers. The IW500 includes newly developed transducerswith extra-large magnets for less compressed and less distorted sound.
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Product Strengths
- THX Certified Dominus means it is optimized for room volumes of up to 6,500 cubic feet
- Can be used as a left, center, or right speaker and is the most powerful reference loudspeaker produced to date by M&K Sound
- Can be mounted either vertically or horizontally as a center channel
- Designed for use in high-end home theaters or hifi systems, it boasts an 80 Hz – 20 kHz (+/-1.5 dB) frequency response and a maximum SPL of greater than 117 dB
- Combines a high-performance one-inch soft dome tweeter with a precision-crafted aluminum waveguide to ensure accurate and focused vertical and horizontal dispersion
Product Considerations
- Should ideally be paired with one or more subwoofers, such as M&K Sound's THX Certified Dominus X15+ subwoofer
- Requires an amplifier with 100-500 watts of power
Takeaway: The IW500 is designed for large home theater installations, bringing sonic precision, neutrality, and articulation. Its THX Dominus certification ensures high performance and makes it a great choice for those looking for unrivaled audio in large environments.
Video review
Our take on the brand
Made under U.S. Patent 9247339
Proprietary 4-way loudspeaker design
Proprietary controlled directivity – acoustically superior proprietary wide dispersion, triple-ring radiator high frequency array. This array disperses a precisely focused acoustical power pattern of that of a horn or waveguide without the audible ringing influence of horn flare walls constraining the soundwave for acoustically superior mid-range high frequency performance
Product Strengths
- Tonally rich and natural sounding
- Amazing detail that rivals the best electrostatics in terms of the pure level of detail and resolution
- They create an incredibly large, deep soundstage that will fill the room and place within that soundstage images as clear and precise as any speaker
- They handle pretty much every other aspect of what a speaker should do in an exemplary fashion
- Very easy to drive
Product Considerations
- These proved to be the most time consuming speakers to position that one has ever had in one's rooms
- Toe-in angle was critical, distance from the wall behind them was super critical, and all totally room dependent
- These are very directional speakers
- The bass response has to be looked at in conjunction with the room one is using them in
- They also require a relatively long 100 hour "break-in" period before they really start to loosen up a little and really shine
Comparisons (according to reviewers)
- Vs Tekton Lore, they do everything better than the Lores
Takeaway: The Double Impact is a stunning achievement in speaker design that offers an immersive and detailed listening experience. If one appreciates natural sound, exceptional detail, and a wide soundstage, these speakers are definitely worth considering for an audio setup.
Video review
Our take on the brand
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Compact in size, the Insight Series P4i defies traditional categorization. Sharing the design elements of its larger Insight Series sibling, it is hard to believe the musical and cinematic performance and dynamic quality of this small in-wall loudspeaker. The Insight Series P4i includes a planar magnetic driver – and four robust 3”x5” woofers for low distortion, high-resolution sound, and a superior dynamic range. The result is excellent, uniform horizontal dispersion throughout its operating range, providing superb off-axis coverage in both in-wall and in-ceiling applications.
Product Strengths
- Truly outstanding sound quality, delivering a near-electrostatic, audiophile listening experience in a disappearing, in-wall package
- Uses planar magnetic thin-film drivers (PMD) which can be highly detailed with excellent transient response
- PMDs are quite reliable because the spread-out "voice grid" is great at dissipating heat
- PMDs are super-easy for an amplifier to drive, as they are "an almost perfectly resistive load"
Product Considerations
- Horizontal center channel use of the Insight P4i requires stud modifications due to its size
Comparisons (according to reviewers)
- The Insight series squeezes most of the sound quality of the Wisdom Audio Sage Series into a less imposing, less costly package
Takeaway: The Wisdom Audio Insight P4i speakers provide excellent sound quality in an in-wall design, and are a great way to get high-end audio without large, free-standing speakers. They could be worth buying for those who want the best possible sound without compromising on interior design.
Video review
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Product Strengths
- Delivers full, rich, and detailed sound with a hybrid tweeter module, an 8" wood fiber driver, and a 10" passive carbon fiber radiator
- Offers a significant level of adjustability and customization to suit individual audio preferences and spatial requirements, and can be installed vertically or horizontally
- Features a slim design and dogleg mounting system for easy installation on any standard wall
- Meticulously designed and crafted with high-quality materials and rigorous testing processes
Product Considerations
- Its high price point might make it less accessible for some customers
- To achieve optimal sound, the speaker should be installed with the tweeter at ear height, which may require additional consideration during installation
- The manufacturing origin of the speaker is not mentioned
Takeaway: The DALI Phantom S-180 is an excellent in-wall speaker that provides great sound and can be adjusted to fit individual needs. It's a worthwhile investment for a top-notch audio experience.
Video review
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Our Summary
Product Strengths
- Retains the neutrality, realism, and musicality associated with the M&K Sound design in a discreet enclosure
- The front three IW150 models perfectly match each other in terms of tonality and are utterly transparent
- Capable of a pleasingly open sound that fills the room with wonderful detail and clarity
- The transient response of these speakers is incredible, viscerally delivering the scares as the soundtrack suddenly goes from relative silence to very loud
Product Considerations
- Slightly lacking at the low-end, designed to be used with a subwoofer
- Placement can be non-trivial and orientation moreso because of the multi-woofer/tweeter design, resulting in a weird dispersion that will sound different depending on which side of the speaker one is on
- Putting them in the wall might change its sonic integrity
Comparisons (according to reviewers)
- IW150 is an in-wall version of the M&K Sound S150
Takeaway: The IW150 delivers the detail, clarity, and transience of a professional studio monitor from a discreet, in-wall enclosure. If one is looking for in-wall speakers that vanish into their decor, then these are worth an audition.
Video review
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Our Summary
Product Strengths
- Tool-less design with the Easy Quick Install (EQI) system allows for quick and easy installation
- Flax cone drivers offer light, stiff cones with good natural damping
- The design allows for both horizontal and vertical installation by rotating the high-frequency/mid-range pod
- Delivers impressive dynamics, a clean, neutral balance, and articulate dialogue handling
- Easy to drive with an amplifier
Product Considerations
- The Easy Quick Install (EQI) system may not work in all situations due to space constraints behind the wall
- The open-back design can make the speaker's balance dependent on the installation environment, potentially requiring EQ adjustments
- Adding the included black acoustic cloth to the grille darkens the overall color shade, which is not ideal for color matching applications
- If a clamp breaks on the tool-less design, it is not easily replaceable
- Requires more horizontal spacing than speakers with traditional dogears, requiring installers to be more careful about between-stud placement
Comparisons (according to reviewers)
- Vs Focal Kanta No. 2: The Kanta No. 2 has a weightier midrange, superlative upper frequencies, more depth, wider soundstage, and improved imaging, though the 300IWLCR6's sound quality is satisfying
- Vs PSB W-LCR: The PSB exhibits a very slight nasal characteristic, which is not noticed on the Focal LCRs
- Vs Martin Logan Axis: The Martin Logan Axis has impressive imaging and upper-end frequency output due to its folded ribbon tweeter, which is very different from the Focals' inverted dome aluminum and magnesium tweeter
Takeaway: The Focal 300IWLCR6 in-wall loudspeaker is easy to install and delivers great sound for music and movies, especially when paired with a good subwoofer. The speaker can be easily installed, and it can fit into various home theater setups.
Video review
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Our Summary
Product Strengths
- Sublime and super clear highs without being fatiguing, due to the beryllium dome tweeter
- Tight bass with sufficient volume
- Resolving, yet engaging and fun to listen to, with lots of details in the guitar notes
- Very natural sound and excellent imaging ability
- Exceptionally neutral response over a wide angle, making them flexible in different listening situations
Product Considerations
- For the price, the bass extension may be considered lacking for some, as it does not go as low as some might expect
- The beryllium tweeters are fantastic, but could potentially be poisonous
- The M126Be speakers may not provide a sufficient dynamic range for those who crave the dynamics of a live orchestra, and may want larger speakers
Comparisons (according to reviewers)
- Vs KEF LS50, the Revel M126Be dominate in most test tracks and are much better overall, with more details in bass, mids, and highs
- Vs ATC SCM19, the Revel M126Be has deeper and louder bass despite its smaller size and weight
- Vs ATC SCM19, the Revel M126Be offers slightly brighter highs with more refinement and clarity, while the ATC SCM19 has richer mids
- Vs Revel Performa3 F206, the M126Be offers more precise imaging and sharper sound, creating more space within the orchestra
Takeaway: The Revel M126Be is a great-looking speaker that sounds very natural and accurate, making them great for listening to different types of music. Their flexibility in placement and electrical characteristics makes them easy to use with any amplifier, so they will be enjoyed for years to come.
Video review
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Our Summary
Product Strengths
- Smooth, spacious sound with good weight
- Excellent build and finish quality
- Slim design allows it to be hung on the wall like a picture
- Employs true 3-way full range drivers with pivoting Inverted Dual Concentric mid-range/tweeter modules, and C-CAM bass drivers
- Clever drive unit arrangement ensures that imaging is excellent
Product Considerations
- Midrange colouration can harm timing, potentially leading to a slightly congested presentation with complex rhythms
- Bass presence is limited due to the sealed-box design
- Without the grilles, the speakers have a stark, industrial look
Takeaway: The SoundFrame offers both stylish design and impressive sound quality, making it a good choice for those who want their speakers to blend seamlessly with their home decor. Its innovative features and well-built construction make it a worthwhile investment.
Video review
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Our Summary
Product Strengths
- Easy to build in
- Very 'shallow' design with an installation depth of only 10cm
- Since the Phantom already has a back-box (part of the speaker), a separate back-box or other isolation is not necessary
- Nice sound
- The front is paintable / repaintable
Product Considerations
- A subwoofer is recommended, especially for movies
- Lowest point is 60 Hz, which is not really enough for complete reproduction in film
Comparisons (according to reviewers)
- The S-280 sounds bigger and has more body and grunt than the M-375
Takeaway: The DALI Phantom M-375 is a good choice as it makes it easy to create a hidden multi-channel system in a living room. It provides a nice sound and excellent balance when paired with a subwoofer.
Video review
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