Bowers & Wilkins 801 D5

The Bowers & Wilkins 801 D5 stands at the pinnacle of the 800 Series Diamond loudspeaker range, representing decades of acoustic research, precision engineering and uncompromising attention to musical accuracy. Developed for the world's most demanding recording studios and discerning audiophiles, this flagship reference loudspeaker combines advanced drive-unit technology, sophisticated cabinet construction and carefully engineered acoustic systems to reproduce music with remarkable clarity, realism and dynamic authority.

Its three-way architecture incorporates a 25mm Diamond dome tweeter, a 150mm Continuum cone FST midrange driver and two 250mm Aerofoil bass drivers. Each transducer is engineered for a specific frequency range, allowing high-frequency detail, midrange articulation and powerful low-frequency reproduction to work together as a coherent musical presentation. The result is a loudspeaker designed to preserve the subtle textures of individual instruments while maintaining composure during demanding, large-scale musical passages.

The 801 D5's acoustic performance is supported by its distinctive Solid Body Tweeter-on-Top assembly, sculpted Turbine Head midrange enclosure and reinforced Matrix cabinet structure. Aluminium Space Frame reinforcement, a solid aluminium spine and a carefully shaped cabinet further address unwanted vibration and cabinet-related reflections. These technologies work together to support precise imaging, a convincing sense of depth and a stable soundstage.

With a published frequency response of 15Hz to 28kHz (±3dB), 90dB sensitivity and a recommended amplifier power range of 50W to 1,000W, the 801 D5 is designed for high-performance stereo systems where resolution, dynamic scale and tonal accuracy are priorities. Its substantial cabinet, premium finishes and carefully considered industrial design make it equally distinctive as a centrepiece in a dedicated listening room.

Every aspect of the 801 D5 reflects Bowers & Wilkins' philosophy of reducing the influence of the loudspeaker itself, allowing listeners to concentrate on the music. From the smallest expressive detail in a vocal performance to the weight and impact of a full orchestra, it is engineered to deliver a highly revealing and immersive reference listening experience.

Feature Highlights

• Flagship reference floorstanding loudspeaker from the Bowers & Wilkins 800 Series Diamond range.
• 25mm Diamond dome tweeter with a diaphragm break-up frequency of 70kHz for precise and extended high-frequency reproduction.
• 150mm Continuum cone FST midrange driver designed for natural vocals, instrumental accuracy and fine musical detail.
• Solid Body Tweeter-on-Top and dedicated Turbine Head enclosure to help minimise unwanted resonance and interference.
• Biomimetic Suspension and Anti-Resonance Plug technologies for improved midrange clarity.
• Dual 250mm Aerofoil bass drivers for deep, powerful and controlled low-frequency reproduction.
• Matrix internal bracing, aluminium Space Frame reinforcement and a solid aluminium spine for enhanced cabinet rigidity.
• Flowport bass reflex technology designed to reduce turbulence and unwanted port noise.
• Wide frequency response of 15Hz–28kHz (±3dB) and 90dB sensitivity.
• Four premium finishes: Stealth Black, Warm White, Light Walnut and Dark Walnut.

Key Features

• Diamond Dome Tweeter
  The 25mm Diamond dome tweeter is engineered to combine exceptional stiffness with very low moving mass. Diamond's material properties help push diaphragm break-up to 70kHz, beyond the audible frequency range, supporting accurate high-frequency reproduction with excellent transient definition and fine-detail resolution. This design helps preserve delicate overtones, spatial cues and the natural brilliance of instruments without relying on excessive high-frequency emphasis.
• Solid Body Tweeter-on-Top
  The tweeter is housed in a dedicated solid-body assembly positioned above the main cabinet. This arrangement helps isolate the high-frequency driver from cabinet vibrations and reduces the influence of surrounding surfaces on sound radiation. Its carefully engineered shape also helps control diffraction, supporting more precise stereo imaging, stable instrument placement and a spacious presentation.
• Continuum Cone FST Midrange Driver
  The 150mm Continuum cone is designed to control the disruptive effects of diaphragm break-up that can colour reproduced sound. Its combination with Fixed Suspension Transducer (FST) technology helps the midrange driver reproduce the complex tonal information found in voices, strings, piano and other acoustic instruments. This is particularly important for a reference loudspeaker, where subtle changes in vocal expression and instrumental texture must remain clearly distinguishable.
• Biomimetic Suspension
  The Biomimetic Suspension replaces the conventional fabric spider with a specially engineered suspension structure. It is designed to reduce unwanted airflow noise and mechanical interference behind the midrange diaphragm, helping the driver operate with fewer sources of unwanted colouration. The intended benefit is a cleaner and more transparent midrange presentation, especially when reproducing intricate musical passages.
• Anti-Resonance Plug
  The Anti-Resonance Plug is part of the midrange driver's acoustic design and helps manage the effects of unwanted resonances within the driver assembly. By addressing these sources of interference, it supports clearer midrange reproduction and improved definition of vocal and instrumental details.
• Turbine Head Midrange Enclosure
  The distinctive Turbine Head provides a dedicated, highly rigid enclosure for the midrange driver. Its construction is designed to minimise structural vibration and reduce the influence of the main bass cabinet on the frequencies most important to voices and instruments. Separating this critical driver into its own engineered enclosure helps preserve midrange clarity and contributes to a more focused, stable soundstage.
• Dual Aerofoil Bass Drivers
  Two 250mm Aerofoil bass drivers provide the foundation for the 801 D5's powerful low-frequency performance. Their composite cone construction uses a carefully varied thickness profile to balance rigidity and low moving mass. This helps the drivers maintain control during large excursions, delivering weight, impact and bass definition while supporting the dynamic contrasts found in demanding recordings.
• Matrix Cabinet Bracing
  The Matrix system uses an interconnected internal bracing structure to reinforce the loudspeaker cabinet. By dividing the cabinet into smaller, more rigid sections, it helps reduce panel vibration and unwanted resonances. This is essential in a high-resolution loudspeaker because cabinet colouration can mask low-level information and blur the apparent position of performers.
• Aluminium Space Frame Bracing
  Aluminium Space Frame reinforcement adds structural rigidity to the cabinet assembly. Working alongside the Matrix system, it helps create a stable mechanical platform for the drive units and reduces unwanted structural movement. The result is a cabinet designed to remain more acoustically unobtrusive during demanding playback.
• Solid Aluminium Spine and Curved Cabinet Construction
  The cabinet is formed around a continuous curved profile secured by a solid aluminium spine. This construction contributes to overall rigidity and helps reduce unwanted cabinet reflections. Beyond its distinctive appearance, the design reflects the relationship between cabinet geometry, structural stability and acoustic performance.
• Flowport Bass Reflex System
  The Flowport system incorporates a specially designed dimpled port surface intended to reduce turbulence as air moves through the bass reflex port. This helps minimise audible port noise during high-output playback and supports cleaner low-frequency reproduction, particularly when the music contains substantial bass energy.
• Precision Three-Way Crossover Design
  The three-way architecture allocates high, midrange and low frequencies to their respective specialised drive units. This allows each transducer to operate within its intended range and supports a coherent presentation across the audio spectrum. Correct integration is particularly important in a reference loudspeaker, where tonal consistency, transient behaviour and the spatial relationship between instruments must be preserved.
• Reference-Level Dynamic Performance
  With 90dB sensitivity and a recommended amplifier power range of 50W–1,000W into 8Ω on unclipped programme material, the 801 D5 is designed to accommodate a wide range of high-performance amplification. Its dual bass drivers and substantial cabinet volume support powerful low-frequency output, while the specialised midrange and high-frequency systems focus on preserving fine detail and musical articulation.
• Premium Finish and Craftsmanship
  Available in Stealth Black, Warm White, Light Walnut and Dark Walnut, the 801 D5 combines advanced engineering with carefully finished cabinetry. Matching grille colours and Leather by Connolly trim complement the design, allowing the loudspeaker to integrate into sophisticated listening environments without compromising its distinctive visual identity.

Technical Specifications

• Product Type:
  Three-way vented-box floorstanding loudspeaker.
• High-Frequency Driver:
  1 × 25mm (1in) Diamond dome tweeter.
• Midrange Driver:
  1 × 150mm (6in) Continuum cone FST midrange driver.
• Low-Frequency Drivers:
  2 × 250mm (10in) Aerofoil bass drivers.
• Frequency Range (-6dB):
  13Hz–35kHz.
• Frequency Response (±3dB from Reference Axis):
  15Hz–28kHz.
• Sensitivity:
  90dB (on-axis at 2.83Vrms at 1m).
• Harmonic Distortion:
  Second and third harmonics, measured at 90dB SPL and 1m on-axis:
  Less than 1% from 30Hz–20kHz.
  Less than 0.3% from 100Hz–8kHz.
• Nominal Impedance:
  8Ω (minimum 3.0Ω).
• Recommended Amplifier Power:
  50W–1,000W into 8Ω on unclipped programme material.
• Maximum Recommended Cable Impedance:
  0.1Ω.
• Cabinet Construction:
  Matrix internal bracing, aluminium Space Frame reinforcement, solid aluminium spine, curved cabinet construction and dedicated aluminium top section.
• Acoustic Technologies:
  Diamond dome tweeter, Solid Body Tweeter-on-Top, Continuum cone FST midrange, Anti-Resonance Plug, Biomimetic Suspension, Turbine Head, Matrix, Aerofoil bass cones and Flowport.
• Cabinet Finishes:
  Stealth Black, Warm White, Light Walnut and Dark Walnut.
• Grille Finishes:
  Black for Stealth Black and Dark Walnut; Grey for Warm White and Light Walnut.
• Dimensions (H × W × D):
  Height: 1,221mm (48.1in), including tweeter and plinth.
  Width: 372mm (14.6in) for cabinet only; 447mm (17.6in) including plinth.
  Depth: 556mm (21.9in), including grille and terminals; 597mm (23.5in) including plinth.
• Net Weight:
  106.4kg (234.6lb) per loudspeaker.

Additional Information

• Download 801 D5 Technical Information Sheet (PDF)
• Visit the Official Bowers & Wilkins 801 D5 Product Page