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Cameron Oatley
ExtremeHiFi
Website author headshot
Julian Shapiro
ExtremeHiFi

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.

What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.

Manufacturer details

  • Frequency Response (-6 dB): 40 Hz – 120 Hz
  • Sensitivity (1W@1M): 85 dB
  • Nominal Impedance: 8 ohms
  • Maximum SPL: 107 dB
  • Power Handling (RMS): 150 W
  • Drive Unit: 20 cm long throw bass driver with C-CAM cone technology
  • Cut-Out Dimensions: 120 mm (4 3/4")
  • Box Dimensions: 396 x 280 x 235 mm (15 9/16 x 11 x 9 1/4")
  • Vent Dimensions: 427 mm (long) x 75 mm (DIA)
  • Connection: Sprung push type terminals – Gold plated
  • Cabinet: 15 mm MDF construction, vinyl laminate surface
  • Weight: 10.2 kg (22 lb 8 oz)
The Monitor Audio ICS-8 subwoofer enables system-enhancing bass from the most visually discreet of settings. Developed primarily to complement the Monitor Audio CF230 speaker system, the ICS-8 fits into ceiling and wall cavities and under floors, enhancing the CF230 driver array and providing punchy bass from 40 Hz to 120 Hz.
Manufacturer Site

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:

  • Monitor Audio's C-CAM (Ceramic-Coated Aluminium/Magnesium) drivers, specifically their "Gold Dome" tweeters and mid-bass drivers, are consistently praised for their unique combination of lightness, rigidity, and damping, resulting in clear, detailed, and dynamic sound reproduction.
  • The "Rigid Surface Technology" (RST and RST II), employed on Monitor Audio's driver cones, enhances their stiffness and reduces distortion, leading to a fuller, more textured, and controlled sound, especially in the bass frequencies.
  • They've developed a signature sound that balances detail, clarity, and a lively, energetic presentation while being smooth and non-fatiguing, making their speakers suitable for long listening sessions across various music genres.
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Avg. Product Price
$1,001-$2,500
Used For Sale
191
 Available (Scroll Down)
Brand Popularity
23
 of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
58
Founding Year
1972

Our take on the brand

Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.

Look inside the brand

Brand Page

Our interview with the brand

What are two key technological innovations or strong opinions that differ you from other brands?

What's your approach to customer support?

What are your favorite tracks for showcasing the strength of your products?

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From our interview with
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Brand Page

What if you spend more?

Product image
Monitor
Anthra W12
3000
3000
/
8
Reviews
Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Check Amazon
Expand Details

Product Strengths

  • Deep, rich, punchy, and precise bass enhances the overall sound experience
  • Exceptional control and accuracy with articulate and precise bass notes avoids muddiness
  • A muscular amplifier pressurizes the room well, making movies sound huge
  • A user-friendly experience is offered via the MaestroUnite app for advanced configuration
  • Elegant design with a premium finish is available in Gloss Black or Satin White

Product Considerations

  • Substantial weight at 32.4kg
  • May be overkill for smaller rooms
  • Lacks auto EQ for self-calibration
  • Some people may miss high-level inputs

Takeaway: The Anthra W12 is a powerful subwoofer that brings depth and detail to both music and movies. With its precise bass and user-friendly features, it's a great addition to any serious hifi setup and will make any media experience more enjoyable.

Video review

Our take on the brand

Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Monitor
Anthra W15
3900
3900
/
5
Reviews
Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Check Amazon
Expand Details

Product Strengths

  • Exceptional build quality and finish, with a compact cabinet design relative to its 15-inch driver
  • Powerful bass reproduction suitable for both music and movies, with the ability to deliver 'devastatingly deep bass with musicality and agility'
  • Sophisticated control via the MaestroUnite app, offering granular adjustments for phase, gain, and EQ, including customizable presets
  • High power output ensures substantial headroom and transient attack

Product Considerations

  • Considerable size and weight may require careful placement and a two-person lift
  • Premium price point may not be suitable for budget installations
  • Lacks automated EQ, requiring a third-party measuring solution such as REW to get a flat response

Comparisons (according to reviewers)

  • Compared to dedicated 15in LFE monsters such as SVS and Velodyne, the Anthra W15 may be a little 'safe' and restrained for all-action content

Takeaway: The Monitor Audio Anthra W15 is a well-built, powerful, and versatile subwoofer that can play music and movies well, especially for those who want to fill the room with great sound. Its app makes it easy to control and fine-tune the bass to get the sound just right.

Video review

Our take on the brand

Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Monitor
Cinergy Sub15
3100
3100
/
2
Reviews
Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Check Amazon
Expand Details

Product Strengths

  • Huge soundstage that expands beyond the confines of the room, with excellent dynamic swings
  • Delivers a level of detail that few other systems can match, digging deep into the soundtrack to reveal small details
  • Flexible design allows for in-wall, on-wall, or floorstanding installation
  • Mid-tweeter array is rotatable to accommodate horizontal or vertical positioning
  • THX Ultra certification

Product Considerations

  • The HFT drivers could appear a little bright if not correctly tuned
  • Professional installation is required to achieve its full potential
  • The Sub15 is passive, meaning it requires a separate amplifier

Comparisons (according to reviewers)

  • Monitor Audio comes dangerously close to dethroning Perlisten, despite the US brand charging double the price

Takeaway: The Cinergy system delivers thrilling, detailed, and room-filling sound for a truly immersive home cinema experience. Its flexibility and high-end performance make it a great option for serious movie and music lovers.

Video review

Our take on the brand

Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Product image
Monitor
Anthra W10
2600
2600
/
2
Reviews
Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Check Amazon
Expand Details

Product Strengths

  • Deep, agile bass in small to medium-sized spaces
  • Beautiful design and compact size
  • Sophisticated DSP capabilities via MaestroUnite app and user-friendly interface with LCD display
  • High-quality build with braced MDF construction
  • Versatile connectivity options (XLR and RCA)

Product Considerations

  • App required for advanced features

Comparisons (according to reviewers)

  • Vs Q Acoustics QB12, the Anthra 10 feels faster and more responsive

Takeaway: The Anthra is a compact yet powerful subwoofer that puts out a lot of bass without taking up a big footprint. It combines sophisticated technology, outstanding performance, and elegant aesthetics, making it a worthwhile investment for serious audiophiles.

Video review

Our take on the brand

Monitor Audio is an independently owned hifi brand that has earned multiple Editors Choice awards for their Silver Series speakers, which feature proprietary driver designs. Their speakers are distinguished by unique technologies like the MPD tweeter and C-CAM drivers, which provide exceptional clarity while resisting distortion and listener fatigue.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

What competes at this price?

REL
T/9x
1762
/
Released
2021
The T/9x is the flagship of the T/x Serie. The job of any range topper for REL is to deliver more of everything, particularly output and dynamics. The 9x delivers a level of intimacy, clarity and speed that means there are no longer trade-offs between the sonic balance of smaller models weighed against the power and scale of a model 9.
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REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Expand Details

Our Summary

Product Strengths

  • Excellent sound quality, suitable for music listening with great articulation and detail
  • Easier integration into a room visually, due to its compact/medium size
  • Attention to detail in the design, including the fit and finish, and quality components
  • Speed and transient response are praised, allowing it to start and stop quickly
  • Multiple connection options, including high-level, low-level, and LFE inputs, increasing its versatility

Product Considerations

  • May not provide the same level of 'body rock' and tactile feel as larger subwoofers
  • May not be ideal for very large rooms where more output is needed
  • The finish, while high quality, is only available in a limited number of colors
  • The TX range is not designed to be stacked, limiting options for increasing bass output

Comparisons (according to reviewers)

  • The T/9x has slightly better fidelity, while the SVS Micro 3000 has more SPL and extension
  • The T/9x provides a more consistent experience overall, while the KEF KC62 is more versatile
  • Performance rivals REL S3.

Takeaway: The REL T/9x is a well-designed subwoofer that can enhance the sound quality of a music system, especially in small to medium-sized rooms. It brings detail, clarity, and extension to the bass, making it a worthwhile addition for those who appreciate high-fidelity audio.

Video review

Our take on the brand

REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
KEF
KC62
1949
/
Released
2021
KC62 is an incredibly compact subwoofer that delivers the might and magic of deep, accurate bass for a thrillingly immersive music, movie and gaming experience. Created using innovative KEF engineering including the ground-breaking Uni-Core ® technology, the football-sized KC62 features two 6.5inch force cancelling drive units powered by 1,000W RMS of specially designed Class D amplification.
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KEF's signature Uni-Q technology places the tweeter in the center of the woofer to create a single point source for sound, while their Metamaterial Absorption Technology absorbs 99% of unwanted sound from the rear of the driver. Their Music Integrity Engine corrects timing errors in the speaker crossover, and their Shadow Flare technology reduces diffraction for improved detail and clarity in sound reproduction.
Expand Details

Our Summary

Product Strengths

  • The KC62 is a compact subwoofer, described as tiny and about the size of a soccer ball or basketball, making it easy to accommodate in various rooms and spaces
  • Delivers incredible bass for the money and size
  • The KC62 provides powerful, deep, and accurate bass reproduction, especially in the lower frequencies
  • Features unique Uni-Core technology to fit two woofers into a small cabinet, reducing unwanted resonances

Product Considerations

  • The KC62's standby mode may not always engage, requiring manual volume adjustment to wake it
  • Small subwoofers can't do what bigger subwoofers can do, although capable
  • App control does not provide direct access to remotely control the sub's own manual settings, therefore, some adjustments still need to be made on the back
  • In a big room, it'll definitely lose some steam

Comparisons (according to reviewers)

  • The KC62 extends quite a bit lower than the SVS Micro 3000 and is going to have really good extension, especially at lower volumes
  • The KF92 has a max SPL that's double the one offered by the KC62, making it a great option for larger listening rooms or home theaters
  • The KC62 has a faster response than the REL T/9x, which enhances the vibrancy of percussions in music or exciting moments in movies

Takeaway: The KC62 is a small but mighty subwoofer that delivers impressive bass for its size, making it an ideal choice for those with limited space who still want a great listening experience. Its stylish design and innovative technology make it a standout product that can enhance both music and movie enjoyment.

Video review

Our take on the brand

KEF's signature Uni-Q technology places the tweeter in the center of the woofer to create a single point source for sound, while their Metamaterial Absorption Technology absorbs 99% of unwanted sound from the rear of the driver. Their Music Integrity Engine corrects timing errors in the speaker crossover, and their Shadow Flare technology reduces diffraction for improved detail and clarity in sound reproduction.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
REL
HT/1205 MKII
1132
/
Released
2022
HT/1205 MKII establishes a new performance standard for affordable home theatre subwoofers. Avoiding electronic gimmickry in favor of properly balanced priorities; cabinets that are right-sized, solidly braced and beautifully finished. A sparkling new amp design that effortlessly delivers 500W into an all-new CarbonGlas™ 12" (300mm) driver. The sexy new black lacquer top plate has a subtle REL logo floating on top, while the expensively wrought black line-grained composite for the cabinet looks the business. HT/1205 MKII plays 50% louder than its predecessor, while also delivering more precision and subtlety. It is capable of output levels more commonly found in models well over $1,000/£1,000.
Check Amazon
REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Expand Details

Our Summary

Product Strengths

  • Improved bass extension, control, and authority compared to the original HT/1205
  • Enhanced aesthetics with upgraded vinyl, gloss black top plate, and smaller logos
  • Defined clicks/adjustments on frequency and gain controls, improving setup precision
  • Clean bass output with good note distinction, start/stop behavior, transient response, tone, and texture
  • Capable of playing louder with a larger sense of scale than the original HT/1205

Product Considerations

  • Lacks high-level input
  • Some reviewers found the bass extension did not go as low as the Mark I version in certain infrasonic tests
  • The glossy top plate may be prone to fingerprints and micro-scratches

Comparisons (according to reviewers)

  • Mark II plays louder, extends lower, has more authority and a larger sense of scale overall—with a slightly heavier tone—compared to the original HT/1205
  • Compared to the Arendal 1961 1S and SVS SB-2000 Pro, the HT/1205 is more articulate, clean, and clear with better note-to-note distinction and transient response
  • The HT/1205 is a more affordable alternative to the KEF KC62

Takeaway: The HT/1205 is a powerful and articulate subwoofer that offers great value for both music and home theater. Its improved design and performance make it a worthy upgrade and a solid choice for those seeking a compact yet capable bass solution.

Video review

Our take on the brand

REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
REL
Classic 98
1636
/
Released
2023
Introducing Classic 98 – a symphony of mid-century charm and state-of-the-art technology. Drawing from the golden age of stereo, this masterpiece is more than just a nod to iconic REL designs; it's a reimagining, blending the past's aesthetics with today's technological prowess and performance.
Check Amazon
REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Expand Details

Our Summary

Product Strengths

  • Offers a warm, full, and 'romantic' bass that evokes a vintage feel while maintaining modern REL quality
  • More affordable than higher-end REL subwoofers, while still providing excellent build quality and performance
  • Easy to integrate and blend with various speakers, especially classic or vintage models
  • Provides a tight, punchy, and expansive bass response that adds foundation to the music without sounding muffled
  • Features a smaller size and easier setup compared to some other REL subwoofers

Product Considerations

  • Does not reach the ultra-deep and refined bass of REL's higher-end S/510 model
  • The 'plumper, fuller' bass might not be ideal for those seeking ultra-tight and fast bass
  • Some reviewers note that while improved, older REL designs could have a lack of control over the bass

Comparisons (according to reviewers)

  • The Classic 98 is more affordable and easier to set up than the REL S/510, but the S/510 offers deeper and more refined bass
  • The Classic 98 is less warm, more direct, deeper, faster and tighter than the older REL Strata III

Takeaway: The REL Classic 98 is a good subwoofer for adding a vintage vibe and solid bass to a music setup, especially with classic speakers. It is easy to use, sounds good, and provides an enjoyable listening experience.

Video review

Our take on the brand

REL is widely recognized as the premier audiophile-grade subwoofer manufacturer, focusing exclusively on designing subwoofers that match the speed and clarity of high-end loudspeakers. Their higher-end models are specifically designed to integrate seamlessly with audiophile speakers, enhancing the soundstage and instrument separation rather than simply adding bass impact.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page
Buchardt
SUB10
1364
/
Released
2024
For many who follow us, this has been a project we have worked on for over 2 years now. We wanted a subwoofer that would be less intrusive in your typical home but, in typical Buchardt fashion, perform well beyond what users expect from its size. The SUB10 features a very powerful long-stroke 10" woofer that has been designed specifically for this exact enclosure and Hypex amplifier.
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Buchardt Audio is a direct-to-consumer speaker brand that uses an "upside down" design with a back-mounted passive radiator, which helps create high-end sound at more affordable prices. Their speakers are engineered with advanced measurement technology and a proprietary waveguide design that enhances off-axis listening, while delivering deep bass from compact cabinets that rival larger floor-standing speakers.
Expand Details

Our Summary

Product Strengths

  • Slim and sleek design allows for placement under furniture, against walls, or even on its back
  • Easy to set up and blend with main speakers, often within seconds
  • Can be used wirelessly via WISA with compatible Buchardt powered speakers
  • Can be tuned with master tunings for customized sound profiles
  • Built-in room correction via a smartphone app provides optimal bass response

Product Considerations

  • Output may not be sufficient for large home theaters or those seeking maximum bass output
  • Relies on DSP, which may not appeal to traditional analog audio enthusiasts
  • Some reviewers experienced issues pairing the sub wirelessly with the hub

Comparisons (according to reviewers)

  • Vs REL Classic 99—Sub 10 is easier to set up and place with a different vibe and low-level connections, while the Classic 99 requires high or low level connections
  • Vs Kef KC62—Sub 10 has built-in room correction and a smartphone app, features lacking in the KC62, and the sound quality was slightly better
  • Vs SVS Micro 3000—The Sub 10 extends considerably lower with fuller bottom end
  • Vs Lyngdorf BW-2—Sub 10 is cheaper than the BW-2 and has features like XLR input, DSP and wireless connectivity

Takeaway: The SUB10 is a versatile and convenient subwoofer, offering ease of placement, setup, and blending with various speakers. It's an excellent choice for those seeking a musical and unobtrusive bass enhancement in small to medium-sized rooms.

Video review

Our take on the brand

Buchardt Audio is a direct-to-consumer speaker brand that uses an "upside down" design with a back-mounted passive radiator, which helps create high-end sound at more affordable prices. Their speakers are engineered with advanced measurement technology and a proprietary waveguide design that enhances off-axis listening, while delivering deep bass from compact cabinets that rival larger floor-standing speakers.
Website author headshot
Julian Shapiro
ExtremeHiFi Writer
Product Page
Product Page

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