BMW i4 Signature Audio Packages

Experience our signature audio upgrade packages tailored for the BMW i4.

Popular

Essence Package

What’s Included

Installation Timeline

Duration of install: 2 Day

Your Investment

Total package investment: £1,250
Estimated Total: £0
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Adds real depth and weight to your music, filling in the low-frequency detail that factory systems typically lack
  • Improves overall balance and clarity by taking strain off the factory speakers
  • Delivers controlled, tight bass rather than boom or vibration
  • Maintains a clean, OEM-style finish wherever possible, with practicality preserved

The Essence Package is designed to enhance depth and presence within your existing system through the addition of the Audison Prima 10’’ active subwoofer. Carefully selected for its clean, controlled low-frequency performance, this upgrade introduces richer bass extension without overpowering the factory sound signature. The focus is on achieving a more balanced and enjoyable listening experience, adding warmth and body to your music while maintaining clarity.

To support this enhancement, 10 sheets of Skinz 3mm sound deadening are strategically applied to minimise unwanted vibration and resonance. This acoustic preparation helps stabilise the vehicle’s panels, allowing the subwoofer to operate more efficiently and deliver tighter, more refined bass response.

Every installation begins with a full vehicle condition scan and health report to ensure system integrity and compatibility. The process is documented with detailed photography, providing transparency and reassurance throughout the build. Once complete, the interior is carefully tidied, followed by a tailored handover to ensure you understand how to get the best from your upgraded sound system — finished with a complementary gift to complete the experience.

Refined Package

What’s Included

Installation Timeline

Duration of install: 2.5 Days

Your Investment

Total package investment: £1,150

  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Noticeable increase in clarity and detail from the front speakers
  • Tighter, more controlled mid-bass thanks to treated doors
  • Reduced vibration and resonance for a more refined, “OEM+” feel
  • Installation designed to be fully reversible if needed

The Refined Package is designed to enhance clarity and precision within the front sound stage, creating a more engaging and detailed listening experience. The Audison Prima front speaker upgrade focuses on improving vocal definition, tonal balance, and overall sound accuracy, allowing music to feel more natural and immersive without compromising the vehicle’s original character.

Bespoke speaker adapters ensure precise positioning and secure installation, enabling the upgraded speakers to perform at their full potential while maintaining OEM integration standards. Speaker water guards are added to provide protection within door cavities, supporting durability and consistent performance over time.

Acoustic refinement is further supported through the strategic application of 10 sheets of Skinz 3mm sound deadening, helping to reduce unwanted vibration and resonance. This creates a more stable listening environment, allowing the upgraded speakers to deliver cleaner output and improved detail.

Every installation begins with a comprehensive vehicle condition scan and health report to ensure compatibility and reliability. Detailed photos document the work carried out, maintaining full transparency throughout the process. Once complete, the interior is carefully tidied, followed by a tailored handover session to ensure you fully understand and enjoy your new sound system — finished with a complementary gift as part of the experience.

Element Package

What’s Included

Installation Timeline

Duration of install: 4 Days

Your Investment

Total package investment: £2,300
Estimated Total: £0
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Significantly improves clarity, detail, and sound balance across the entire cabin
  • Creates a stronger, more defined front soundstage while ensuring rear fill sounds natural and cohesive
  • Reduces vibration and road noise, allowing the speakers to perform in a more controlled environment
  • Retains a factory-correct look with upgraded performance throughout

The Element Package is designed to create a balanced, full-cabin upgrade that enhances clarity, depth, and overall listening immersion. By upgrading both the front and rear sound stages with Audison Prima speakers, this build delivers a more cohesive and natural sound throughout the vehicle. The result is improved vocal clarity, stronger mid-range presence, and greater definition, allowing music to feel more engaging without losing tonal balance.

Bespoke speaker adapters ensure precise fitment and correct acoustic positioning, allowing each speaker to perform as intended while maintaining OEM integration standards. Speaker water guards are installed to provide protection within door cavities, supporting long-term durability and safeguarding the upgraded components from moisture exposure.

Acoustic refinement is further enhanced with 20 sheets of Skinz 3mm sound deadening, strategically applied to reduce unwanted resonance and vibration. This additional treatment creates a more controlled cabin environment, allowing the upgraded speakers to operate with improved efficiency, cleaner output, and tighter response across frequencies.

Every installation begins with a comprehensive vehicle condition scan and health report to ensure compatibility and system integrity. The entire process is documented with detailed photos, maintaining full transparency from start to finish. Once complete, the interior is carefully tidied, followed by a tailored handover session to ensure you understand how to maximise your new sound system’s performance — finished with a complementary gift to complete the experience.

Momentum Package

What’s Included

Installation Timeline

Duration of install: 5.5 Days

Your Investment

Total package investment: £3,550

Estimated Total: £0
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Delivers a full-range upgrade with improved clarity, depth, and impact across the entire system
  • Creates a strong, well-defined front soundstage with supportive rear fill and controlled low-end bass
  • Reduces resonance and unwanted noise, allowing every component to perform at its best
  • Maintains a clean, OEM-style appearance with discreet integration throughout

The Momentum Package is designed to deliver a well-rounded transformation by combining upgraded front and rear sound stages with controlled low-frequency enhancement. Audison Prima front and rear speaker upgrades provide improved clarity, detail, and tonal balance across the entire cabin, creating a more immersive listening experience for both driver and passengers. The addition of the Audison Prima 10’’ active subwoofer introduces deeper bass extension and improved musical presence, enhancing the overall sound without overwhelming the system.

Bespoke speaker adapters ensure accurate positioning and secure installation, allowing each component to perform optimally while maintaining seamless integration with the vehicle. Speaker water guards provide added protection within door cavities, helping preserve reliability and long-term performance.

Acoustic refinement is further elevated with 30 sheets of Skinz 3mm sound deadening, strategically applied to reduce unwanted resonance and vibration. This treatment improves overall cabin stability, allowing the upgraded components to deliver tighter bass response, cleaner mid-range clarity, and a more controlled listening environment.

Every installation begins with a comprehensive vehicle condition scan and health report to confirm system compatibility and integrity. Detailed photos document the build process, ensuring transparency throughout. Once completed, the interior is carefully tidied, followed by a tailored handover session so you can fully understand and enjoy your new sound system — finished with a complementary gift as part of the experience.

Horizon Package

What’s Included

Installation Timeline

Duration of install: 9.5 Days

Your Investment

Total package investment: £5,496
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Dramatically improved clarity, detail, and sound staging across all listening levels
  • Deep, controlled bass that integrates seamlessly with the cabin
  • Reduced road noise and panel resonance for a quieter, more refined driving experience
  • System tuned specifically to your vehicle’s acoustics, not a generic preset
  • OEM/OEM plus finish with fully reversible, vehicle-safe installation
  • Consistent, balanced sound for both front and rear occupants

The Horizon Package is engineered to deliver a fully integrated upgrade that focuses on precision, balance, and immersive performance. The front stage is elevated with Hertz Mille Pro speakers, chosen for their dynamic capability and detailed presentation, while Audison Prima rear speakers support a cohesive sound throughout the cabin. Low-frequency depth is introduced through the Audison Prima 10’’ active subwoofer, enhancing musical presence and adding controlled bass extension without overwhelming the overall soundstage.

Bespoke speaker adapters ensure accurate positioning and secure installation, maintaining correct acoustic alignment and OEM integration standards. Speaker water guards provide additional protection within door cavities, supporting long-term reliability. Extensive acoustic preparation using 45 sheets of Skinz 3mm sound deadening reduces unwanted resonance and vibration, creating a more stable environment that allows the upgraded components to perform with greater clarity and control.

At the core of the system is the Audison Forza AF C8.14 bit DSP amplifier, enabling precise tuning tailored to the vehicle’s acoustic characteristics. Measurement-led DSP calibration using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring accurate staging and coherent sound delivery. Final system checks combine measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring supports reliability and signal integrity, while every installation begins with a comprehensive vehicle condition scan and health report. The process is documented through detailed photos and video, with updates shared via a dedicated group chat throughout the build. A maintenance wash and interior tidy prepare the vehicle for handover, followed by a tailored walkthrough to ensure you fully understand and enjoy your new sound system — finished with a complementary gift as part of the experience.

Most Popular

Spectrum Package

What’s Included

Installation Timeline

Duration of install: 10 Days

Your Investment

Total package investment: £6,120
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Reference-grade sound quality with exceptional clarity, detail, and dynamic range
  • Fully matched Audison Voce front and rear speakers for a cohesive, high-end soundstage
  • Powerful, controlled low-frequency performance without loss of boot usability
  • Significantly reduced road noise and vibration for a more refined cabin environment
  • Precision DSP tuning tailored specifically to your vehicle’s acoustics
  • OEM/OEM-plus installation with long-term reliability and full vehicle integrity maintained

The Prestige Package is designed to deliver a refined, high-performance listening experience through carefully selected premium components and precision-focused acoustic preparation. Audison Voce front and rear speaker upgrades form the foundation of the system, chosen for their exceptional clarity, natural tonal balance, and dynamic response. Together, they create a cohesive and immersive soundstage that enhances detail and realism throughout the entire cabin. The addition of the Audison Prima 10’’ active subwoofer introduces controlled low-frequency depth, supporting the system with balanced bass that complements rather than overwhelms the overall presentation.

Bespoke speaker adapters ensure accurate positioning and secure integration, allowing each component to perform as intended while maintaining OEM standards. Speaker water guards provide protection within door cavities, helping preserve long-term reliability. Extensive acoustic treatment using 55 sheets of Skinz 3mm sound deadening reduces unwanted resonance and vibration, creating a more stable acoustic environment that enables improved clarity and tighter response across frequencies.

At the core of the system is the Audison Forza AF M8.14 bit DSP amplifier, enabling detailed tuning tailored specifically to the vehicle’s acoustic characteristics. Measurement-led DSP calibration using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring accurate staging and balanced sound delivery. Final verification combines measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures reliability and signal integrity, while every installation begins with a comprehensive vehicle condition scan and health report. The process is documented with detailed photos and video, with updates shared via a dedicated group chat throughout the build. A maintenance wash and interior tidy prepare the vehicle for collection, followed by a tailored handover session to ensure you fully understand and enjoy your new sound system — completed with a complementary gift as part of the experience.

Virtuoso Package

What’s Included

Installation Timeline

Duration of install: 12 Days

Your Investment

Total package investment: £6,595
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Exceptionally precise, reference-level sound with superior staging and realism
  • Fully matched Audison Voce front and rear speakers for seamless tonal consistency
  • Deep, fast, and tightly controlled bass that integrates naturally into the cabin
  • Extensive sound deadening for a noticeably quieter, more refined driving environment
  • High-channel DSP control allowing advanced tuning headroom and future expandability
  • OEM-plus installation with long-term reliability and zero compromise to vehicle integrity

The Virtuoso Package represents a fully integrated, reference-level upgrade designed to deliver exceptional clarity, depth, and precision through advanced acoustic preparation and carefully selected high-performance components. Audison Voce front and rear speaker upgrades form the core of the system, chosen for their detailed presentation, natural tonal balance, and dynamic capability, creating an immersive and accurate soundstage throughout the cabin. Low-frequency performance is delivered through the Audison Voce II 10″ subwoofer enclosure, providing powerful yet controlled bass that integrates seamlessly with the rest of the system.

Bespoke speaker adapters ensure precise positioning and secure installation, maintaining correct acoustic alignment and OEM integration standards, while speaker water guards provide additional protection within door cavities to support long-term reliability. Extensive acoustic treatment using 65 sheets of Skinz 3mm sound deadening significantly reduces unwanted resonance and vibration, creating a stable listening environment that allows the upgraded components to perform with greater accuracy and control.

At the centre of the system is the Audison Forza AF M12.14 bit DSP amplifier, supported by the dedicated Audison Forza AF M1D mono amplifier, enabling precise control over system performance. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring accurate staging and coherent sound delivery. Final system checks combine measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures reliable signal integrity, while every installation begins with a comprehensive vehicle condition scan and health report. The build process is documented through detailed photos and video, with updates shared via a dedicated group chat throughout. A maintenance wash and interior tidy prepare the vehicle for collection, followed by a tailored handover session to ensure you fully understand and enjoy your new sound system — finished with a complementary gift as part of the experience.

Fusion Package

What’s Included

Installation Timeline

Duration of install: 16 Days

Your Investment

Total package investment: £9,867
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Reference-grade audio performance with exceptional realism, depth, and control
  • Fully matched Audison Voce speakers front, rear, and subwoofer for absolute tonal consistency
  • Powerful, articulate bass delivered via a dedicated subwoofer and mono amplification
  • Extremely low cabin noise and resonance for a calm, refined listening environment
  • Advanced DSP and amplification architecture with maximum tuning precision and headroom
  • Bespoke installation engineered for performance, longevity, and OEM-plus presentation

The Fusion Package is engineered as a high-performance, multi-amplified system designed to deliver exceptional control, depth, and precision across the full frequency range. Audison Voce front and rear speaker upgrades establish a detailed and dynamic soundstage, chosen for their transparency, tonal balance, and ability to reproduce music with realism and authority. Low-frequency performance is handled by the Hertz Mille Pro 10’’ subwoofer, housed within a bespoke sub box, ensuring optimal enclosure design for controlled, accurate, and powerful bass response.

Bespoke speaker adapters ensure precise positioning and secure integration of all upgraded components while maintaining OEM fitment standards. Speaker water guards provide protection within door cavities to support long-term durability. Extensive acoustic preparation using 75 sheets of Skinz 3mm sound deadening significantly reduces resonance and unwanted vibration, creating a highly stable listening environment that allows every component to operate with improved clarity, efficiency, and control.

System management is handled by the Audison Forza AF M8.14 bit DSP amplifier, supported by the Audison Forza AF M4D 4-channel amplifier and the Audison Forza AF M1D mono amplifier. This multi-amplifier configuration provides dedicated power delivery and refined control across speaker channels and subwoofer output. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation to achieve precise staging and balanced sound reproduction. Final system checks combine measurement data with reference listening to ensure performance is both technically accurate and musically engaging.

Connection-grade wiring ensures signal integrity and reliability throughout the installation. Every build begins with a comprehensive vehicle condition scan and health report, followed by detailed photographic and video documentation of the work carried out. Updates are shared via a dedicated group chat throughout the process, and once complete, the vehicle receives a maintenance wash and interior tidy. A tailored handover session ensures you fully understand your new system, finished with a complementary gift as part of the complete experience.

Legacy Package

What’s Included

Installation Timeline

Duration of install: 21 Days

Your Investment

Total package investment: £14,867
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime

  • Thesis-based front stage for exceptional realism, detail, and dynamic range

  • Bespoke A-pillar fabrication to optimise speaker positioning and imaging

  • Voce rear integration for a balanced cabin experience without pulling focus forward

  • Authoritative, tightly controlled bass with dedicated mono amplification

  • Extensive sound treatment for reduced resonance and a more refined cabin

  • Precision DSP calibration tailored to your vehicle using measured acoustic data

The Vanguard Package represents an advanced, reference-focused build designed to deliver exceptional realism, precision, and dynamic performance through carefully selected flagship components and extensive acoustic preparation. The front sound stage is elevated with Audison Thesis speakers, chosen for their exceptional transparency, accuracy, and ability to reproduce music with outstanding detail and natural tonal balance. Supporting the overall soundstage, Audison Voce rear speakers provide cohesive cabin coverage, while the Hertz Mille Pro 10’’ subwoofer, housed within a bespoke sub box, delivers controlled and powerful low-frequency performance that integrates seamlessly with the rest of the system.

Bespoke A-pillars and mounting solutions are crafted specifically for the Thesis range, ensuring optimal positioning and acoustic alignment for accurate staging and imaging. Bespoke speaker adapters maintain secure integration while preserving OEM fitment standards, and speaker water guards provide protection within door cavities to support long-term reliability. Extensive acoustic treatment using 80 sheets of Skinz 3mm sound deadening significantly reduces unwanted resonance and vibration, creating a highly controlled environment that allows the system to perform at its full potential.

System control and power delivery are managed through the Audison Forza AF M8.14 bit DSP amplifier, supported by the Audison Forza AF M4D 4-channel amplifier and the Audison Forza AF M1D mono amplifier. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring precise staging and balanced sound reproduction. Final system checks combine measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures reliability and signal integrity throughout the installation. Every build begins with a comprehensive vehicle condition scan and health report, followed by detailed photographic and video documentation of the work carried out. Updates are shared via a dedicated group chat throughout the process, and once complete, the vehicle receives a maintenance wash and interior tidy. A tailored handover session ensures you fully understand your new sound system — finished with a complementary gift as part of the experience.

Couture Package

What’s Included

Installation Timeline

Duration of install: 27 Days

Your Investment

Total package investment: £24,754
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Thesis-Based front stage with extreme resolution, realism, and scale
  • Fully discrete, multi-amplifier architecture for absolute control and headroom
  • Hertz Mille Legend subwoofer delivering deep, authoritative, yet musical low-Frequency performance
  • Bespoke A-Pillar fabrication for precise driver positioning and imaging accuracy
  • Exceptional cabin refinement through extensive acoustic treatment
  • High-Resolution system control via Audison Virtuoso processing
  • Clean, efficient amplification for a more impactful and refined performance

The Couture Package represents a flagship-level system designed to deliver exceptional realism, refinement, and uncompromising performance through carefully selected reference-grade components and extensive acoustic preparation. The front sound stage is built around Audison Thesis speakers, chosen for their precision, transparency, and ability to reproduce music with extraordinary detail and accuracy. Supporting the overall presentation, Audison Voce rear speakers provide balanced cabin coverage, while the Hertz Mille Legend 10’’ subwoofer, housed within a bespoke sub box, delivers powerful yet controlled low-frequency performance with exceptional musicality and depth.

Bespoke A-pillars and mounting solutions are crafted specifically for the Thesis range to achieve optimal positioning and accurate staging, allowing the system to present sound with realism and focus. Bespoke speaker adapters ensure secure integration while maintaining OEM fitment standards, and speaker water guards provide additional protection within door cavities for long-term durability. Extensive acoustic preparation using 90 sheets of Skinz 3mm sound deadening significantly reduces resonance and vibration, creating a highly controlled listening environment that allows the system to perform at its full potential.

System control and power delivery are managed through a multi-amplifier configuration consisting of the Audison Voce AV 5.1K amplifier alongside dual Audison Voce AV Quattro amplifiers, all integrated with the Audison Virtuoso processor. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring precise staging and balanced sound reproduction. Final system checks combine measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures reliability and signal integrity throughout the installation. Every build begins with a comprehensive vehicle condition scan and health report, followed by detailed photographic and video documentation of the work carried out. Updates are shared via a dedicated group chat throughout the process, and once complete, the vehicle receives a maintenance wash and interior tidy. A tailored handover session ensures you fully understand and experience the full potential of your new sound system — finished with a complementary gift as part of the experience.

Opus Package

What’s Included

Installation Timeline

Duration of install: 36 Days

Your Investment

Total package investment: £67,754
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Elite amplification for a more open, dynamic, and powerful performance
  • Full Audison Thesis front and rear stages for absolute tonal purity and coherence
  • Dual high-Performance subwoofer architecture delivering effortless, controlled low-Frequency authority
  • Fully discrete, multi-amplifier Thesis platform for uncompromised power delivery and control
  • Extreme acoustic treatment for an exceptionally quiet, stable cabin environment
  • Bespoke fabrication throughout to optimise placement, aesthetics, and performance
  • Competition-Level DSP control and calibration using Audison Virtuoso processing

The Opus Package represents the ultimate expression of reference-level audio engineering, designed to achieve exceptional realism, scale, and precision through flagship components and extensive acoustic preparation. The system is centred around Audison Thesis front and rear speaker upgrades, chosen for their extraordinary transparency, dynamic capability, and ability to reproduce music with remarkable accuracy and depth. Low-frequency performance is delivered through dual Hertz Mille Legend 10’’ subwoofers, housed within bespoke sub boxes to ensure optimal enclosure design and controlled, powerful bass integration across the entire soundstage.

Bespoke A-pillars and mounting solutions are crafted specifically for the Thesis range, ensuring ideal positioning for accurate imaging and staging. Bespoke speaker adapters maintain precise fitment and OEM integration standards, while speaker water guards provide protection within door cavities to support long-term reliability. Extensive acoustic preparation using 120 sheets of Skinz 3mm sound deadening significantly reduces resonance and vibration, creating a highly controlled acoustic environment that allows every component to perform at its highest level.

System control and power delivery are handled through a multi-amplifier configuration consisting of three Audison Thesis Quattro amplifiers alongside the Audison Thesis Uno amplifier, all integrated with the Audison Virtuoso processor. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring precise staging and cohesive sound delivery. Final system checks combine measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures signal integrity and reliability throughout the installation. Every build begins with a comprehensive vehicle condition scan and health report, followed by detailed photographic and video documentation of the work carried out. Updates are shared via a dedicated group chat throughout the process, and once complete, the vehicle receives a maintenance wash and interior tidy. A tailored handover session ensures you fully understand and experience the full potential of your new sound system — finished with a complementary gift as part of the experience.

The Masterpiece

What’s Included

Installation Timeline

Duration of install: 46 Days

Your Investment

Total package investment: £114,867
Estimated Total: £6,996
  • Component warranty: 5 years
  • Installation warranty: Lifetime
  • Full Audison Thesis front and rear stages for absolute tonal purity and coherence
  • Dual high-Performance subwoofer architecture delivering effortless, controlled low-Frequency authority
  • Fully discrete, multi-amplifier Thesis platform for uncompromised power delivery and control
  • Extreme acoustic treatment for an exceptionally quiet, stable cabin environment
  • Elite-level amplification that provides a perfectly uncoloured, lifelike performance with effortless energy
  • Bespoke fabrication throughout to optimise placement, aesthetics, and performance
  • Competition-Level DSP control and calibration using Audison Virtuoso processing

The Masterpiece Package represents the pinnacle of reference-level automotive audio engineering, combining flagship components, extensive acoustic preparation, and precision-focused system design to achieve exceptional realism, scale, and control. Audison Thesis front and rear speaker upgrades form the foundation of the system, chosen for their extraordinary transparency, dynamic range, and ability to reproduce music with lifelike accuracy and detail. Low-frequency performance is delivered through dual Hertz Mille Legend 10’’ subwoofers, housed within bespoke sub boxes to ensure optimal enclosure performance and seamless integration across the entire frequency spectrum.

Bespoke A-pillars and mounting solutions are crafted specifically for the Thesis range to achieve ideal driver positioning and accurate staging, allowing sound to be presented with focus and realism. Bespoke speaker adapters maintain precise fitment while preserving OEM integration standards, and speaker water guards provide protection within door cavities to support long-term durability. Extensive acoustic treatment using 140 sheets of Skinz 3mm sound deadening creates an exceptionally controlled listening environment, significantly reducing resonance and external interference so every component performs at its full potential.

System control and power delivery are managed through a reference-grade multi-amplifier configuration, featuring dual Audison Thesis Venti amplifiers alongside multiple Audison Thesis Quattro and Thesis Uno amplifiers, all integrated through the Audison Virtuoso processor. Measurement-led DSP tuning using REW acoustic analysis includes time alignment, phase correction, channel balancing, and crossover optimisation, ensuring precise staging, tonal accuracy, and cohesive sound delivery. Final system checks combine detailed measurement data with reference listening to confirm performance both technically and musically.

Connection-grade wiring ensures signal integrity and reliability throughout the installation. Every build begins with a comprehensive vehicle condition scan and health report, followed by detailed photographic and video documentation of the work carried out. Updates are shared via a dedicated group chat throughout the process, and once complete, the vehicle receives a maintenance wash and interior tidy. A tailored handover session ensures you fully understand and experience the full potential of your new sound system — finished with a complementary gift as part of the experience.

All of our premium packages include

Engineered to the same standards on every vehicle.

Lifetime warranty

Your install is covered by our lifetime warranty on workmanship, for lasting peace of mind.

Secure facility

Your vehicle is safely cared for in our secure, monitored workshop facility at all times.

Project transparency

Clear communication, honest timelines, and no hidden surprises from start to finish.

Engineering craftsmenship

Every installation is engineered with precision, care, and uncompromising attention to detail.

Acoustic callibration

Individually tuned to your vehicle for balanced, accurate, and immersive sound.

Professional handover

Every system is thoroughly tested, explained, and handed over with complete confidence.

BMW 420I SOUND UPGRADE

Discover how Cambridge Car Audio engineered the perfect sound in a BMW 420i — a complete aftermarket audio transformation that elevates the driving experience beyond anything the factory system could deliver. This BMW 420i audio upgrade is pure craftsmanship, precision, and acoustic engineering at its finest.

This video documents the complete audio system overhaul of a BMW 420i. Expert technicians meticulously install a high-performance sound system, featuring upgraded speakers, amplifiers, and precision tuning. Watch the detailed process, from installation through to final sound testing, as every component is refined for clarity, depth, and powerful bass response.

The result is a dynamic and immersive listening experience that transforms every drive. Whether you’re commuting or enjoying open roads, this upgrade delivers exceptional sound quality tailored specifically to the BMW 420i cabin environment.

BMW M440I SOUND UPGRADE

Discover how Cambridge Car Audio engineered the perfect sound in a BMW M440i — a complete aftermarket audio transformation that elevates the driving experience beyond anything the factory system could deliver. This BMW M440i audio upgrade is pure craftsmanship, precision, and acoustic engineering at its finest.

This video documents the complete audio system overhaul of a BMW M440i. Expert technicians meticulously install a premium sound system, including upgraded speakers, amplifiers, and a custom subwoofer solution. Watch the detailed process, from factory system removal to final tuning, as every detail is optimised for crystal-clear sound, deep bass, and immersive performance.

The result is a perfectly balanced and powerful listening experience that enhances every journey. Whether you’re driving daily or enjoying performance runs, this upgrade delivers outstanding sound quality tailored specifically to the BMW M440i cabin environment.

BMW M440I SOUND UPGRADE

Discover how Cambridge Car Audio engineered the perfect sound in a BMW M440i — a complete aftermarket audio transformation that elevates the driving experience beyond anything the factory system could deliver. This BMW M440i audio upgrade is pure craftsmanship, precision, and acoustic engineering at its finest.

This video documents the complete audio system overhaul of a BMW M440i. Expert technicians meticulously install a premium sound system, including upgraded speakers, amplifiers, and a custom subwoofer solution. Watch the detailed process, from factory system removal to final tuning, as every detail is optimised for crystal-clear sound, deep bass, and immersive performance.

The result is a perfectly balanced and powerful listening experience that enhances every journey. Whether you’re driving daily or enjoying performance runs, this upgrade delivers outstanding sound quality tailored specifically to the BMW M440i cabin environment.

FREQUENTLY ASKED QUESTIONS

Every vehicle we work on has a range of signature audio upgrade packages designed specifically for that make and model. Each package shows:
  • Specification
  • Options available
  • Estimated installation time
  • Upgrade paths
The most effective way to choose is to arrange a phone or in-person consultation. This allows you to listen to demonstration vehicles, see examples of our craftsmanship, and understand exactly what is achievable for your car before making a decision.
This removes guesswork and ensures you select a system that suits how you listen to music.
Our packages are based on the most popular, proven upgrade paths for each vehicle.
A bespoke system is for clients who want to go beyond these options — whether that involves OEM-plus subwoofer enclosures, advanced system design, or a fully tailored listening experience.
Packages provide clarity. Bespoke provides complete freedom.
Yes — significantly.
Factory systems (including branded options such as Harman Kardon, Bose, and Bang & Olufsen) are engineered to meet production budgets. Specialist audio components are engineered purely for performance.
Upgrading speakers improves:
  • Clarity and detail
  • Volume without distortion
  • Mid-bass response
  • High-frequency accuracy
  • Overall realism and soundstage
Most clients are surprised at how much performance their original system was leaving on the table.
If you want full-range, deep, realistic sound — a subwoofer is essential.
We offer two approaches:
  • Custom OEM-plus subwoofer enclosures designed specifically for your vehicle
  • Practical quick-release active subwoofer solutions as a high-quality off-the-shelf option
Both options are designed to retain practicality while delivering the depth and authority missing from factory systems.
Each package shows an estimated installation time.
This can vary depending on additional options selected and the level of fabrication involved. We prioritise the quality of workmanship and keep you fully updated throughout the process.
Yes. This is one of the fastest-growing areas of our work.
We design low-current, high-efficiency systems specifically for EV platforms, engineered not to affect vehicle range. Upgrading audio in EVs requires specialist knowledge of electrical architecture and noise management, which our team has extensive experience with.
Tuning is a critical part of the process.
We use a combination of professional acoustic measurement software, specialist calibration tools, and extensive experience to:
  • Remove factory equalisation
  • Correct frequency response
  • Time-align the system to the listening position
  • Resolve phase and staging issues
We then refine the system using your own music to create a listening experience tailored specifically to you.
Yes. We specialise in OEM and OEM-plus installations.
This means:
  • No visible modifications to the interior
  • Practicality and usability retained
  • Equipment integrated discreetly
  • All work fully reversible where required
The vehicle looks factory. The sound is anything but.
Yes. Clients travel from across the UK for installations.
We assist with:
  • Local station drop-offs
  • Hire cars
  • Vehicle collection and delivery options (open or enclosed transport)
Yes. We regularly work with clients from Europe, the Middle East, Asia, and the USA.
We can assist with door-to-door transport, including enclosed road transport, sea freight, or air freight, with all work carried out at our UK workshop.
Pricing, options, and specifications are clearly shown within the signature audio packages for each vehicle on our website.
If your vehicle is not listed, or you are looking for something tailored specifically to you, a consultation allows us to design the right system around your goals.
This is one of the most common questions we receive.
Any modification to a vehicle can have implications for a manufacturer or aftermarket warranty, and it is not our place to comment on behalf of those providers.
What we can say is this:
The level of installation detail is what protects your vehicle.
We use vehicle-specific integration methods, our own speaker connectors, and fully reversible installation techniques so that:
  • No factory wiring is cut
  • The vehicle remains fully serviceable
  • Everything is logically installed for future access by technicians
We provide a lifetime warranty on our craftsmanship, and all components supplied by us carry a five-year manufacturer warranty.
This meticulous approach is what separates a professional installation from a basic one and is why our work stands up to scrutiny long after the install is complete.
A consultation allows you to:
  • Hear demonstration vehicles
  • See the level of workmanship involved
  • Understand the differences between upgrade levels
  • Choose the right system first time
The difference is in the craftsmanship, attention to detail, and the meticulous process each vehicle goes through.
Our clients are kept informed throughout the journey, shown the work behind the scenes, and experience a level of care that is rarely seen in this industry.
This is not simply an installation — it is a carefully executed upgrade carried out to the highest possible standard.

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