Monitor Audio Anthra W12
The Anthra W12 delivers fast, textured bass with the poise to disappear into serious stereo systems and the authority to energise cinema. Its sealed 12-inch design, 900W amplification and deep 16Hz extension bring physical impact without boom, while MaestroUnite’s eight-band parametric EQ enables exacting integration. Fidelity Magazine and TED Publications both found its control, detail and scale exceptional.
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Deliciously Crispy
Bass
94/100
Integration
92/100
Dynamics
93/100
Build Quality
91/100
Features Usability
91/100
Value for Money
91/100
Pros
Deep, fast and highly textured bass combines cinematic authority with controlled musical timing.
Integrates discreetly with stereo speakers, sharpening image focus and adding scale without materially changing tonal balance when carefully configured.
MaestroUnite provides extensive, easy-to-use control over crossover, phase, slope and parametric EQ from the listening position.
Premium, exceptionally solid cabinet construction and finish make a strong visual and physical impression.
Cons
No automatic room-EQ calibration, so achieving its best performance requires manual setup.
Lacks high-level inputs, which may complicate connection to some two-channel systems.
Prioritises precision and control over brute, bone-shaking output.
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What Reviewers Are Saying
Assessments of Build Quality, Usability, and Overall Propositions.
Bass
94/100
Reviewers consistently praise the W12 for deep, controlled and highly textured bass. It is described as quick and authoritative, with convincing low-frequency reach, natural weight on effects and instruments, and enough precision to reveal detail rather than simply adding boom; one reviewer notes that it prioritises control over brute, bone-shaking output.
Integration
92/100
In properly adjusted systems, the W12 is repeatedly said to blend without calling attention to itself. Fidelity found it worked “practically unnoticed” while making the overall presentation more complete, while IWII praised its snappy response and said it never felt slower or detached from the main speakers. One Fidelity setup did reveal an occasional thickened vocal pitch, showing that careful calibration still matters.
Dynamics
93/100
The W12 earns strong praise for punch, transient speed and physical impact. Reviewers describe tank fire and explosions with convincing weight and distinct subtleties, while music playback is said to gain visceral force and quick, powerful transients without turning into undifferentiated loudness.
Build Quality
91/100
The cabinet and driver assembly make a notably substantial impression. Reviewers call it heavy, rigid and high quality, with particularly enthusiastic praise for the mirror-like piano finish; the sealed enclosure and robust-looking driver reinforce that premium feel. Long-term reliability is not discussed in detail.
Features Usability
91/100
The W12 offers extensive practical adjustment through its rear-panel display and MaestroUnite app, including crossover frequency, slope, phase and an eight-band parametric EQ. Reviewers find the app polished and easy to use, and praise RCA/XLR connectivity and daisy-chaining, though the lack of automatic room EQ and high-level inputs will matter to some systems.
Value for Money
91/100
At around €2,450, this is a premium-priced subwoofer, but one reviewer says buyers get “a lot more than what you paid for” and another found no meaningful shortcomings after many months of use. The reviews do not directly compare it with similarly priced competing subwoofers, so its standing against close price-class peers is less clearly established.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
YouTube Reviews
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Specifications
- System Format
- Active - Sealed Cabinet
- Drive Unit Complement
- 1x 12" (305 mm) High Linear-Excusion Triple Suspension Driver
- Amplifier Classification
- High-Efficiency Class-D
- Lower Frequency Limit
- -6dB @16Hz
- Upper Frequency Limit
- (LPF Off) -6dB @400Hz
- Driver Excursion (pk-pk)
- 50 mm
- DSP
- 28 Bit 50 MIPS Configuratable through MaestroUnite
- Analogue Digital Conversion
- Autoranging Input which combines a 10Vrms maximum input with low signal to noise for small signals
- Amplifier Output Power, 240Vac
- Instantaneous: 1700 W* Continuous short-term: 900 W**
- Amplifier Output Power, 120Vac
- Instantaneous: 1325 W Continuous short-term: 700 W
- LED UI Control
- Brightness, On-Off
- Phase Control
- 0-360 Degrees measured at LPF Crossover
- Low Pass Filter
- 20-200Hz LPF with Roll off Adjustable from -3 to -48dB/Oct
- Custom EQ
- Configurable through MaestroUnite;3 pre-defined EQ curves plus 3 custom EQ curves each with 8 band custom EQ supporting (Peaking, High Shelf, Low Shelf, High Pass)
- Volume Level
- Wide adjustable input gain to allow maximum output from a wide range of input signals
- Inputs
- Stereo Unbalanced RCA (or mono/LFE using only connector marked LFE)Mono/LFE Balanced XLR
- Outputs
- Stereo unbalanced outputs with unbuffered throughput from RCA Inputs Mono/LFE Balanced XLR outputs with unbuffered throughput from XLR Input
- Mains Input Voltage
- Universal Mains, 85-265VAC
- External Dimensions (without feet) (HxWxD)
- 374 x 374 x 374 mm
- Power Consumption
- 200 W
- Cabinet Construction
- Braced 25 mm thick MDF with 36mm front baffle
- Grille
- Cloth covered magnetically attached Grilles
- Weight
- 28.56 kg (63 lb 1 oz)
- Warranty
- 5 years
Manufacturer's Description — Monitor Audio
The W12 is the mid-sized model within the Anthra subwoofer series. It features a 12” (30 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver powered by a Class-D 1,700 Watt amplifier, housed within a comprehensively internally braced, sealed-box cabinet.
The latest firmware is V1.0.434. Click here for more information.
Features at a glance:
12” Rigid Surface Technology II | C-CAM high-excursion driver | Class-D 1700 Watt amplifier | Full-colour LCD display | RCA outputs | Massive motor assembles | Compatible with MaestroUnite | XLR inputs | XLR outputs | MaestroUnite Setup
Deep, Controlled Bass. Simply.
Engineered to deliver impressive bass in medium and large spaces, the Anthra W12 subwoofer features a formidable 1,700 Watt Class-D amplifier driving a 12” (30 cm) Rigid Surface Technology II (RST II) C-CAM high-excursion driver. The W12 can be used on its own or linked with up to three other Anthra subwoofers for a truly immersive, ultra-dynamic listening experience.
A full-colour LCD display and rotatory dial are located on the back panel to allow for basic subwoofer setup and EQ preset selection, while advanced features including DSP configuration and multi-sub connectivity setup are available via the MaestroUnite app.
Subwoofers and Their Ideal Placement
Forget simply finding a spot that fits—proper subwoofer placement is a crucial element in the art and science of audio, requiring a touch of knowledge and a willingness to experiment.
Verified Dealers
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Authorized dealers for Monitor Audio Anthra W12
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- Advance Audio — in-store — Wichita, Kansas, United States (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- Alex Audio Video — in-store — Sofia, Sofia City Province, Bulgaria (website)
- All Elite Audio — online and in-store — Perry Hall, Maryland, United States (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alpha Stereo — in-store — Plattsburgh, New York, United States (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
and 180 more verified dealers